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mercury/configure.in
James Goddard 0ead7626cd Implement library version for Java. 
Estimated hours taken: 2
Branches: main

Implement library version for Java.

library/library.m:
	Implement library__version in Java.

java/runtime/Constants.java.in:
	File from which Constants.java is to be generated, which is the source
	for a class to hold mercury-related constants, such as the library
	version.

configure.in:
	Added java/runtime/Constants.java to the list of files to generate.
2004-01-20 23:02:24 +00:00

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#-----------------------------------------------------------------------------#
# Copyright (C) 1995-2004 The University of Melbourne.
# This file may only be copied under the terms of the GNU General
# Public Licence - see the file COPYING in the Mercury distribution.
#-----------------------------------------------------------------------------#
#
# configure.in: autoconf source code for `configure' script.
#
# This file is automatically processed by `autoconf' to produce the
# `configure' script.
#
#-----------------------------------------------------------------------------#
#
# Define a macro MERCURY_MSG, similar to AC_MSG_RESULT, for displaying output.
#
dnl MERCURY_MSG(MESSAGE)
define(MERCURY_MSG,
[echo $1 1>&AC_FD_MSG])
#-----------------------------------------------------------------------------#
AC_INIT(scripts/mmc.in)
TMPDIR=${TMPDIR=/tmp}
# AC_CHECK_TYPES does not exist in versions of autoconf before 2.50.
# AC_CHECK_TYPE is broken in versions of autoconf before 2.50.
AC_PREREQ(2.50)
#-----------------------------------------------------------------------------#
#
# Ensure that all messages are saved to a file `configure.log' by
# invoking ourself recursively without output piped into `tee configure.log'.
# The environment variable `SUPPRESS_LOG_FILE_RECURSION' is used to prevent
# infinite recursion.
#
if test "$SUPPRESS_LOG_FILE_RECURSION" != "yes"; then
SUPPRESS_LOG_FILE_RECURSION=yes
export SUPPRESS_LOG_FILE_RECURSION
trap 0 1 2 3 13 15
rm -f configure.exit_status
{ case $# in
0) ${CONFIG_SHELL-/bin/sh} "$0" ;;
*) ${CONFIG_SHELL-/bin/sh} "$0" "$@" ;;
esac; echo $? > configure.exit_status; } | exec tee configure.log
status=`cat configure.exit_status`
rm -f configure.exit_status
exit $status
fi
#-----------------------------------------------------------------------------#
# Work out the default arguments to configure when reconfiguring,
# for example when installing a binary distribution.
# Strip out --no-create and --no-recursion added by config.status.
# Remove any --prefix and --enable-reconfigure arguments passed by
# mercury_config.
# Also quote any args containing shell metacharacters.
#
# NOTE: Some macros, e.g. AC_CHECK_PROG, overwrite the argument list,
# so this must come before any uses of those macros.
prefix_arg=false
RECONFIGURE_ARGS=
for arg
do
if test $prefix_arg = true
then
prefix_arg=false
else
case "$arg" in
--no-create | --no-recursion) ;;
--prefix) prefix_arg=true ;;
--prefix=*) ;;
--enable-reconfigure=*) ;;
*" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?]]*)
# The argument needs to be quoted.
RECONFIGURE_ARGS="$RECONFIGURE_ARGS '$arg'"
;;
*)
RECONFIGURE_ARGS="$RECONFIGURE_ARGS $arg"
;;
esac
fi
done
AC_SUBST(RECONFIGURE_ARGS)
#-----------------------------------------------------------------------------#
remake_dependencies=false
AC_CONFIG_HEADER(runtime/mercury_conf.h)
AC_PREFIX_DEFAULT(/usr/local/mercury-`. ./VERSION; echo $VERSION`)
AC_CANONICAL_HOST
FULLARCH="$host"
AC_SUBST(FULLARCH)
AC_DEFINE_UNQUOTED(MR_FULLARCH, "$FULLARCH")
. ./VERSION
AC_DEFINE_UNQUOTED(MR_VERSION, "$VERSION")
if test "$prefix" = "NONE"; then
PREFIX="$ac_default_prefix"
else
PREFIX="$prefix"
fi
case "$PREFIX" in
*\ *)
AC_MSG_ERROR(
[cannot install into a directory with a name containing
spaces: \`$PREFIX.'])
exit 1
;;
esac
# Using `cygpath -m' gives a path that works under both
# Cygwin and native Windows, without causing quoting
# problems in shell scripts. (`cygpath -m' converts the
# path to Windows format, with '/' as the directory
# separator).
AC_CHECK_PROG(CYGPATH, cygpath, cygpath -m, echo)
PREFIX="`$CYGPATH $PREFIX`"
LIBDIR="`$CYGPATH $PREFIX/lib/mercury`"
NONSHARED_LIB_DIR=${MERCURY_NONSHARED_LIB_DIR=$PREFIX/lib/nonshared}
AC_SUBST(VERSION)
AC_SUBST(PREFIX)
AC_SUBST(NONSHARED_LIB_DIR)
AC_SUBST(LIBDIR)
DEFAULT_MERCURY_DEBUGGER_INIT_DIR=$LIBDIR/mdb
AC_SUBST(DEFAULT_MERCURY_DEBUGGER_INIT_DIR)
#-----------------------------------------------------------------------------#
case "$host" in
mips-sgi-irix5.*)
AC_MSG_WARN(*** Read README.IRIX-5 before proceeding!)
;;
*-*-bsdi*)
AC_MSG_WARN(*** Read README.BSDI before proceeding!)
;;
esac
#-----------------------------------------------------------------------------#
# Don't document this -- it's only used by the mercury_config script
# to generate a new configuration for an already installed system.
# CONFIG_PREFIX is the PREFIX for a partial installation generated
# by mercury_config containing only the scripts and the configuration
# files, which uses the libraries and executables from a previous
# installation.
AC_ARG_ENABLE(reconfigure,
[],
[reconfiguring=yes
CONFIG_PREFIX="$enableval"
CONFIG_LIBDIR="$CONFIG_PREFIX/lib/mercury"],
[reconfiguring=no
CONFIG_PREFIX="$PREFIX"
CONFIG_LIBDIR="$LIBDIR"]
)
case "$CONFIG_PREFIX" in
yes) AC_MSG_ERROR(missing argument to --enable-reconfigure=... option)
exit 1
;;
no) AC_MSG_ERROR(invalid option --no-enable-reconfigure)
exit 1
;;
esac
CONFIG_PREFIX="`$CYGPATH $CONFIG_PREFIX`"
CONFIG_LIBDIR="`$CYGPATH $CONFIG_LIBDIR`"
AC_SUBST(CONFIG_PREFIX)
AC_SUBST(CONFIG_LIBDIR)
#-----------------------------------------------------------------------------#
case "$host" in
i386-pc-solaris2.8) link_static_opt= ;;
*powerpc*apple*darwin*) link_static_opt= ;;
*) link_static_opt="--linkage static" ;;
esac
MERCURY_MSG("looking for an already installed Mercury compiler to bootstrap with...")
AC_PATH_PROG(BOOTSTRAP_MC,mmc)
if test "$BOOTSTRAP_MC" != ""; then
AC_MSG_CHECKING(whether the above mmc works and is sufficiently recent)
cat > conftest.m << EOF
% this module contains features which didn't work in
% previous versions of the Mercury compiler
% We may also test to see if the installed compiler is
% recent enough by checking what flags mmc takes.
% Use [[ ]] for lists.
:- module conftest.
:- interface.
:- import_module io.
:- pred main(io__state::di, io__state::uo) is det.
:- implementation.
:- import_module int.
main(!IO) :-
return_rtti_version(Version),
(
Version >= 8,
ac(2) ^ elem(3, 5) = 17
->
io.print("Hello, world\n", !IO)
;
io.print("Nope.\n", !IO)
).
:- type a ---> ac(int).
:- func a ^ elem(int, int) = int.
:- mode in ^ elem(in, in ) = out is det.
ac(T) ^ elem(I, J) = T + I * J.
:- pred return_rtti_version(int::out) is det.
:- pragma foreign_proc("C", return_rtti_version(Version::out),
[[will_not_call_mercury, promise_pure]], "
Version = MR_RTTI_VERSION;
").
EOF
if
# Test for the `--read-config-file-2003-03-01' option
echo $BOOTSTRAP_MC conftest >&AC_FD_CC 2>&1 &&
$BOOTSTRAP_MC \
--verbose \
--read-config-file-2003-03-01 \
--halt-at-warn $link_static_opt conftest \
</dev/null >&AC_FD_CC 2>&1 &&
test "`./conftest 2>&1 | tr -d '\015'`" = "Hello, world" &&
$BOOTSTRAP_MC \
--record-term-sizes-as-words \
--compile-to-c conftest \
</dev/null >&AC_FD_CC 2>&1
then
AC_MSG_RESULT(yes)
else
BOOTSTRAP_MC=
AC_MSG_RESULT(no)
# This will only work if the user is working with a source
# distribution which includes the pre-generated .C files.
# So do a quick check now to ensure that we fail early with a
# reasonable error message if they are not present.
if test -f compiler/top_level.c ||
test -f compiler/Mercury/cs/top_level.c
then
true
elif
test -f $LIBDIR/bin/$FULLARCH/mercury_compile ||
test -f $LIBDIR/bin/$FULLARCH/mercury_compile.exe
then
AC_MSG_WARN(
[using $LIBDIR/bin/$FULLARCH/mercury_compile to bootstrap])
else
AC_MSG_ERROR(
[You need a working Mercury compiler to bootstrap with])
fi
fi
rm -f conftest*
fi
#-----------------------------------------------------------------------------#
# Let the user specify which C compiler to use.
AC_ARG_WITH(cc,
[ --with-cc=<program> Specify which C compiler to use.],
mercury_cv_with_cc="$withval", mercury_cv_with_cc="")
case "$mercury_cv_with_cc" in
yes) AC_MSG_ERROR(missing argument to --with-cc=... option)
exit 1
;;
no) AC_MSG_ERROR(invalid option --without-cc)
exit 1
;;
"")
;;
*)
CC="$mercury_cv_with_cc"
;;
esac
#-----------------------------------------------------------------------------#
#
# Find the GCC source code
# and determine whether or not to enable the GCC back-end interface.
#
AC_ARG_ENABLE(gcc-back-end,
[ --enable-gcc-back-end enable the Mercury compiler's GCC back-end interface],
enable_gcc_back_end="$enableval",enable_gcc_back_end=default)
AC_MSG_CHECKING(for GCC source directory)
gcc_src_dir=not_found
case $enable_gcc_back_end in
yes|no|default)
# Search for the gcc source code;
# first try in a subdirectory of this directory,
# then one parallel to this directory,
# and finally try one level up.
for dir in gcc ../gcc ..; do
if test -f $dir/gcc/tree.c; then
gcc_src_dir="$dir"
break
fi
done
;;
*)
# The user has specified the gcc source directory via
# `--enable-gcc-back-end=<directory>'. Check that
# they specified it correctly.
gcc_src_dir="$enable_gcc_back_end"
if test -f "$gcc_src_dir"/gcc/tree.c; then
enable_gcc_back_end=yes
else
AC_MSG_RESULT($gcc_src_dir)
AC_MSG_ERROR(
[--enable-gcc-back-end=$gcc_src_dir specified,
but GCC source code not found in $gcc_src_dir])
fi
;;
esac
AC_MSG_RESULT($gcc_src_dir)
AC_MSG_CHECKING(whether to enable the GCC back-end interface)
case $enable_gcc_back_end in
yes|default)
if test "$gcc_src_dir" = not_found; then
case $enable_gcc_back_end in
yes)
AC_MSG_RESULT(yes)
AC_MSG_ERROR(
[--enable-gcc-back-end specified, but gcc source
code not found])
;;
default)
enable_gcc_back_end=no
;;
esac
else
enable_gcc_back_end=yes
fi
;;
no)
;;
esac
case $enable_gcc_back_end in
yes)
if test "$BOOTSTRAP_MC" = ""; then
AC_MSG_RESULT(yes)
AC_MSG_ERROR(
[--enable-gcc-back-end requires an already
installed Mercury compiler])
else
# This will regenerate compiler/maybe_mlds_to_gcc.m.
remake_dependencies=true
fi
;;
esac
AC_MSG_RESULT($enable_gcc_back_end)
ENABLE_GCC_BACK_END=$enable_gcc_back_end
GCC_SRC_DIR=$gcc_src_dir
AC_SUBST(ENABLE_GCC_BACK_END)
AC_SUBST(GCC_SRC_DIR)
#-----------------------------------------------------------------------------#
#
# Determine whether or not to enable the Aditi back-end.
#
AC_ARG_ENABLE(aditi-back-end,
[ --disable-aditi-back-end
disable the Mercury compiler's Aditi back-end],
enable_aditi_back_end="$enableval",enable_aditi_back_end=yes)
AC_MSG_CHECKING(whether to enable the Aditi back-end)
case $enable_aditi_back_end in
no)
if test "$BOOTSTRAP_MC" = ""; then
enable_aditi_back_end=yes
AC_MSG_RESULT(yes)
AC_MSG_WARN(
[--disable-aditi-back-end requires an already
installed Mercury compiler])
else
# This will regenerate compiler/rl_out.m and
# compiler/rl_file.m.
AC_MSG_RESULT($enable_aditi_back_end)
remake_dependencies=true
fi
;;
esac
ENABLE_ADITI_BACK_END=$enable_aditi_back_end
AC_SUBST(ENABLE_ADITI_BACK_END)
#-----------------------------------------------------------------------------#
MERCURY_MSG("looking for GNU Make...")
AC_PROGRAMS_CHECK(GNU_MAKE,gmake make)
if test "$GNU_MAKE" != ""; then
case "`$GNU_MAKE -v bogus </dev/null 2>&1`" in
"GNU Make"*)
;;
*)
GNU_MAKE=
esac
fi
if test "$GNU_MAKE" = ""; then
AC_MSG_ERROR(cannot find GNU Make)
exit 1
else
MERCURY_MSG("found GNU Make: $GNU_MAKE")
fi
AC_SUBST(GNU_MAKE)
#-----------------------------------------------------------------------------#
MERCURY_MSG("looking for a way to create named pipes...")
save_PATH="$PATH"
PATH="$PATH:/etc:/usr/etc:/sbin"
AC_PATH_PROG(MKFIFO,mkfifo)
if test "$MKFIFO" != ""; then
# check that it really works
tmp=$TMPDIR/fifo$$
trap "rm -f $tmp" 1 2 3 13 15
if $MKFIFO $tmp && test -p $tmp; then
true
else
MKFIFO=""
fi
rm -f $tmp
fi
if test "$MKFIFO" = ""; then
AC_PATH_PROG(MKNOD,mknod)
if test "$MKNOD" != ""; then
# check that it really works
tmp=$TMPDIR/fifo$$
trap "rm -f $tmp" 1 2 3 13 15
if $MKNOD $tmp p && test -p $tmp; then
MKFIFO=mkfifo_using_mknod
else
MKNOD=
fi
fi
fi
if test "$MKFIFO" = ""; then
AC_MSG_WARN(cannot find a working \`mkfifo' or \`mknod')
MKFIFO=none
AC_DEFINE_UNQUOTED(MR_MKFIFO, "")
else
AC_DEFINE_UNQUOTED(MR_MKFIFO, "$MKFIFO")
fi
AC_SUBST(MKFIFO)
test "$MKNOD" = "" && MKNOD=mknod
AC_SUBST(MKNOD)
PATH="$save_PATH"
#-----------------------------------------------------------------------------#
MERCURY_MSG("looking for a way to create temporary files...")
AC_PATH_PROG(MKTEMP,mktemp)
if test "$MKTEMP" != ""; then
# check that it really works
TMPFILE="`mktemp $TMPDIR/configure.XXXXXX < /dev/null`"
case "$TMPFILE" in
$TMPDIR/configure.*) rm -f $TMPFILE ;;
*) MKTEMP="" ;;
esac
fi
if test "$MKTEMP" = ""; then
AC_MSG_WARN(cannot find a working \`mktemp', using \`mkdir || exit')
MKTEMP=""
fi
AC_SUBST(MKTEMP)
#-----------------------------------------------------------------------------#
AC_PATH_PROG(INSTALL_INFO,install-info)
AC_SUBST(INSTALL_INFO)
#-----------------------------------------------------------------------------#
# texi2dvi is currently broken on cygwin
case "$host" in
*-cygwin*)
TEXI2DVI="" ;;
*)
AC_PATH_PROG(TEXI2DVI,texi2dvi) ;;
esac
AC_SUBST(TEXI2DVI)
#-----------------------------------------------------------------------------#
AC_PATH_PROG(LYNX,lynx)
AC_SUBST(LYNX)
#-----------------------------------------------------------------------------#
AC_PATH_PROG(DVIPS,dvips)
AC_SUBST(DVIPS)
#-----------------------------------------------------------------------------#
AC_PATH_PROG(MAKEINFO,makeinfo)
AC_SUBST(MAKEINFO)
#-----------------------------------------------------------------------------#
AC_PATH_PROG(INFO,info)
AC_SUBST(INFO)
#-----------------------------------------------------------------------------#
AC_PATH_PROG(PERL,perl)
AC_SUBST(PERL)
#-----------------------------------------------------------------------------#
AC_PATH_PROG(HOSTNAMECMD,hostname uname)
case "$HOSTNAMECMD" in
*hostname) HOSTNAMECMD="$HOSTNAMECMD -f" ;;
esac
AC_DEFINE_UNQUOTED(MR_HOSTNAMECMD, "$HOSTNAMECMD")
#-----------------------------------------------------------------------------#
AC_PROG_CC
MERCURY_CHECK_CC_NEEDS_TRAD_CPP
AC_SUBST(CC)
# AC_PROG_CC sets GCC to yes if $CC is GNU C.
if test "$GCC" = "yes"; then
GCC_PROG=$CC
else
AC_PATH_PROG(GCC_PROG,gcc)
fi
AC_EXEEXT
AC_SUBST(EXEEXT)
# We need to ensure that CFLAGS does not contain `-g', because
# on some (broken) distributions of Linux (specifically Debian 0.93R6),
# the `-lc' and `-lg' libraries have different contents; specifically,
# only the latter contains memalign(). We need to make sure that the
# test for memalign() doesn't use `-g', since `ml' doesn't use `-g'.
CFLAGS="-O"
# we also need to add the appropriate `-I' options so that the test programs
# can #include various Mercury runtime headers.
case "$MERCURY_CONF_RECONFIGURE" in
"")
CPPFLAGS="-Iruntime -Iruntime/machdeps -Itrace $CPPFLAGS"
;;
*)
# We're generating a new configuration for
# an existing installation.
CPPFLAGS="-I$PREFIX/lib/mercury/inc $CPPFLAGS"
;;
esac
#-----------------------------------------------------------------------------#
# Make sure we search /usr/local/include and /usr/local/lib for
# header files and libraries. GNU C normally searches /usr/local/include
# by default, but (inconsistently) on some systems, such as Solaris,
# it does _not_ search /usr/local/lib.
# The user might also be using a different C compiler that
# doesn't search either of those by default.
MERCURY_CHECK_LOCAL_C_INCL_DIRS
CPPFLAGS="$ALL_LOCAL_C_INCL_DIRS $CPPFLAGS"
MERCURY_CHECK_LOCAL_C_LIB_DIRS
for dir in $ALL_LOCAL_C_LIB_DIRS kludge_for_broken_shells
do
if test "$dir" != "kludge_for_broken_shells"; then
LIBS="-L$dir $LIBS"
fi
done
AC_PROG_CPP
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(for use of a Microsoft C compiler)
AC_EGREP_CPP(yes,
[
#ifdef _MSC_VER
yes
#endif
],
[ac_microsoft=yes
] AC_MSG_RESULT(yes), [ac_microsoft=no
] AC_MSG_RESULT(no))
LDFLAGS_FOR_TRACE=
LD_LIBFLAGS_FOR_TRACE=
if test "$ac_microsoft" = "yes" ; then
# Use MS-style file names and command-line options
OBJ_SUFFIX="obj"
LIB_SUFFIX="lib"
LIB_PREFIX="lib"
LIB_LIBPATH="/LIBPATH:"
LINK_LIB=""
LINK_LIB_SUFFIX=".lib"
LINK_OPT_SEP="/link"
OBJFILE_OPT="/Fo"
AR="lib"
ARFLAGS=""
AR_LIBFILE_OPT="/OUT:"
LDFLAGS_FOR_DEBUG="/DEBUG"
LD_LIBFLAGS_FOR_DEBUG="/DEBUG"
LD_STRIP_FLAG=
USING_MICROSOFT_CL_COMPILER="yes"
case "$CYGPATH" in "echo")
AC_MSG_WARN(cygpath required with Microsoft Visual C++) ;;
esac
FIX_PATH_FOR_CC="$CYGPATH"
# MS doesn't use a ranlib.
RANLIB="echo"
AC_SUBST(RANLIB)
else
# Use Unix-style file names and command-line options
OBJ_SUFFIX="o"
LIB_SUFFIX="a"
LIB_PREFIX=""
LIB_LIBPATH="-L"
LINK_LIB="-l"
LINK_LIB_SUFFIX=""
LINK_OPT_SEP=""
OBJFILE_OPT="-o "
AR="ar"
ARFLAGS="cr"
AR_LIBFILE_OPT=""
LD_STRIP_FLAG="-s"
LDFLAGS_FOR_DEBUG="-g"
LD_LIBFLAGS_FOR_DEBUG="-g"
#
# On Linux ELF, the linker option `-export-dynamic' is needed to make
# symbols exported for use in code linked in with dlopen(),
# which is used for interactive queries in the
# Mercury debugger. For gcc, this linker option can be enabled by
# passing either `-rdynamic' or `-Wl,-export-dynamic' to gcc;
# we use the former. For lcc 4.2, we need to use `-Wl-export-dynamic'.
#
case $FULLARCH in
*-linux*aout) ;; # no special options needed
*-linux*)
case "$CC" in
lcc*) LDFLAGS_FOR_TRACE="-Wl-export-dynamic" ;;
*) LDFLAGS_FOR_TRACE="-rdynamic" ;;
esac
;;
esac
USING_MICROSOFT_CL_COMPILER="no"
FIX_PATH_FOR_CC=echo
AC_PROG_RANLIB
# On MacOS 10.1 (and other MacOS systems?),
# we need to pass the `-c' option to ranlib.
# Otherwise, "common" symbols, i.e. "int foo;" without an initializer,
# do not get included in the archive table of contents, and so
# don't get found during linking. Whose !@#$ing idea was it to make
# that brain-damaged and non-standard-conforming mode the default?
case "$host" in *-apple-darwin*)
RANLIB="$RANLIB -c"
AC_SUBST(RANLIB)
;;
esac
fi
AC_SUBST(OBJFILE_OPT)
AC_SUBST(AR)
AC_SUBST(ARFLAGS)
AC_SUBST(AR_LIBFILE_OPT)
AC_SUBST(LDFLAGS_FOR_DEBUG)
AC_SUBST(LD_LIBFLAGS_FOR_DEBUG)
AC_SUBST(LD_STRIP_FLAG)
AC_SUBST(LDFLAGS_FOR_TRACE)
AC_SUBST(LD_LIBFLAGS_FOR_TRACE)
AC_SUBST(USING_MICROSOFT_CL_COMPILER)
AC_SUBST(OBJ_SUFFIX)
AC_SUBST(LIB_SUFFIX)
AC_SUBST(LIB_PREFIX)
AC_SUBST(LIB_LIBPATH)
AC_SUBST(LINK_LIB)
AC_SUBST(LINK_LIB_SUFFIX)
AC_SUBST(LINK_OPT_SEP)
AC_SUBST(FIX_PATH_FOR_CC)
AC_SUBST(CYGPATH)
#-----------------------------------------------------------------------------#
# Check for `-lm': some systems, e.g. MacOS X (Darwin), don't have it.
# The result of this check may be overridden below.
AC_CHECK_LIB(m, sin, [MATH_LIB=-lm], [MATH_LIB=])
#-----------------------------------------------------------------------------#
# If we're compiling the compiler with MS Visual C++ or `gcc -mno-cygwin',
# don't use symlinks when installing -- the generated compiler executable
# will not be able to follow them.
#
# When cross-compiling from Cygwin to Mingw (and perhaps also on
# native Mingw?), `-lm' exists, but it is not needed and in fact we must
# not use it, because if we do then it causes cygwin1.dll to be linked in.
MMC_USE_SYMLINKS_OPT=
LN_S="ln -s"
case "$host" in
*cygwin*)
case "$CC" in
# cl is the Microsoft C compiler
*gcc*-mno-cygwin* | *cl* | *CL*)
MMC_USE_SYMLINKS_OPT=--no-use-symlinks
MATH_LIB=
LN_S=false
;;
esac ;;
esac
AC_SUBST(LN_S)
AC_SUBST(MMC_USE_SYMLINKS_OPT)
AC_SUBST(MATH_LIB)
#-----------------------------------------------------------------------------#
# Microsoft.NET configuration
#
MERCURY_CHECK_DOTNET
#-----------------------------------------------------------------------------#
mercury_check_for_functions () {
for mercury_cv_func in "$@"
do
mercury_cv_func_define="MR_HAVE_`echo $mercury_cv_func | \
tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`"
AC_CHECK_FUNC($mercury_cv_func, [
AC_DEFINE_UNQUOTED($mercury_cv_func_define)
])
done
}
# Don't try to use mprotect() on gnu-win32, since it is broken
# (at least for version b18, anyway) and trying it can crash Win95.
case "$host" in
*-cygwin*)
ac_cv_func_mprotect=no ;;
esac
mercury_check_for_functions \
sysconf getpagesize gethostname \
mprotect memalign memmove \
sigaction siginterrupt setitimer \
snprintf _snprintf vsnprintf _vsnprintf strerror \
open close dup dup2 fdopen fileno fstat stat lstat isatty \
getpid setpgid fork execlp wait kill \
grantpt unlockpt ptsname tcgetattr tcsetattr ioctl \
access sleep opendir readdir closedir mkdir symlink readlink
#-----------------------------------------------------------------------------#
MERCURY_CHECK_FOR_HEADERS( \
unistd.h sys/wait.h sys/siginfo.h sys/signal.h ucontext.h \
asm/sigcontext.h sys/param.h sys/time.h sys/times.h \
sys/types.h sys/stat.h fcntl.h termios.h sys/ioctl.h \
sys/stropts.h windows.h dirent.h)
if test "$MR_HAVE_UCONTEXT_H" != 1; then
MERCURY_CHECK_FOR_HEADERS(sys/ucontext.h)
fi
#-----------------------------------------------------------------------------#
#
# check the basics of sigaction
#
if test "$ac_cv_func_sigaction" = yes; then
AC_MSG_CHECKING(for \`sigaction' field name)
AC_CACHE_VAL(mercury_cv_sigaction_field,
AC_TRY_RUN([
#include <signal.h>
#include <stdlib.h>
#define FAULT_ADDRESS ((int *)112)
extern void handler(int signum, siginfo_t *info, void *context);
int main() {
struct sigaction act;
act.sa_flags = SA_SIGINFO;
act.sa_sigaction = handler;
if (sigemptyset(&act.sa_mask) != 0)
exit(1);
if (sigaction(SIGSEGV, &act, NULL) != 0)
exit(1);
/* provoke a SIGSEGV */
(*FAULT_ADDRESS)++;
exit(1);
}
void handler(int signum, siginfo_t *info, void *context) {
if (signum == SIGSEGV &&
info->si_signo == SIGSEGV &&
info->si_code > 0 &&
(int *)info->si_addr == FAULT_ADDRESS)
{
exit(0);
} else {
exit(1);
}
}],
[mercury_cv_sigaction_field=sa_sigaction],
[mercury_cv_sigaction_field=sa_handler],
[mercury_cv_sigaction_field=sa_handler]))
AC_MSG_RESULT($mercury_cv_sigaction_field)
AC_DEFINE_UNQUOTED(MR_SIGACTION_FIELD,$mercury_cv_sigaction_field)
if test $mercury_cv_sigaction_field = sa_sigaction; then
AC_DEFINE(MR_HAVE_SIGINFO)
fi
fi
#
# check the basics of sigcontext_struct
#
AC_MSG_CHECKING(for working \`sigcontext_struct' in second arg)
AC_CACHE_VAL(mercury_cv_sigcontext_struct_2arg,
mercury_cv_sigcontext_struct_2arg=no
AC_TRY_RUN([
/* see runtime/mercury_signal.h for documentation of this code */
#define sigcontext_struct sigcontext
#define __KERNEL__
#include <signal.h>
#undef __KERNEL__
#ifdef MR_HAVE_ASM_SIGCONTEXT_H
#include <asm/sigcontext.h>
#endif
#include "mercury_faultaddr.h"
#include <stdio.h>
extern void handler(int signum, struct sigcontext_struct info);
#define FAULT_ADDRESS ((int *)112)
int main() {
signal(SIGSEGV, (void (*)(int))handler);
/* provoke a SIGSEGV */
(*FAULT_ADDRESS)++;
exit(1);
}
void handler(int signum, struct sigcontext_struct context) {
int *addr;
addr = (int *) MR_GET_FAULT_ADDR(context);
if (signum == SIGSEGV && addr == FAULT_ADDRESS) {
exit(0);
} else {
exit(1);
}
}], [mercury_cv_sigcontext_struct_2arg=yes], [true], [true]))
AC_MSG_RESULT($mercury_cv_sigcontext_struct_2arg)
if test $mercury_cv_sigcontext_struct_2arg = no; then
#
# check for a sigcontext_struct in the third argument of
# the signal handler (Linux-68k has this).
#
AC_MSG_CHECKING(for working \`sigcontext_struct' in third arg)
AC_CACHE_VAL(mercury_cv_sigcontext_struct_3arg,
mercury_cv_sigcontext_struct_3arg=no
AC_TRY_RUN([
/* see runtime/mercury_signal.h for documentation of this code */
#define sigcontext_struct sigcontext
#define __KERNEL__
#include <signal.h>
#undef __KERNEL__
#ifdef MR_HAVE_ASM_SIGCONTEXT_H
#include <asm/sigcontext.h>
#endif
#include "mercury_faultaddr.h"
#include <stdio.h>
extern void handler(int signum, int code, struct
sigcontext_struct info);
#define FAULT_ADDRESS ((int *)112)
int main() {
signal(SIGSEGV, (void (*)(int))handler);
/* provoke a SIGSEGV */
(*FAULT_ADDRESS)++;
exit(1);
}
void handler(int signum, int code, struct sigcontext_struct context) {
int *addr;
addr = (int *) MR_GET_FAULT_ADDR(context);
if (signum == SIGSEGV && addr == FAULT_ADDRESS) {
exit(0);
} else {
exit(1);
}
}], [mercury_cv_sigcontext_struct_3arg=yes], [true], [true]))
AC_MSG_RESULT($mercury_cv_sigcontext_struct_3arg)
else
mercury_cv_sigcontext_struct_3arg=no
fi
mercury_cv_sigcontext_struct=no
if test $mercury_cv_sigcontext_struct_2arg = yes; then
mercury_cv_sigcontext_struct=yes
AC_DEFINE(MR_HAVE_SIGCONTEXT_STRUCT_2ARG)
fi
if test $mercury_cv_sigcontext_struct_3arg = yes; then
mercury_cv_sigcontext_struct=yes
AC_DEFINE(MR_HAVE_SIGCONTEXT_STRUCT_3ARG)
fi
if test $mercury_cv_sigcontext_struct = yes; then
AC_DEFINE(MR_HAVE_SIGCONTEXT_STRUCT)
AC_DEFINE(MR_HAVE_SIGINFO)
#
# check for sigcontext_struct.eip
#
AC_MSG_CHECKING(for \`sigcontext_struct' pc access at signals)
AC_CACHE_VAL(mercury_cv_pc_access,
mercury_cv_pc_access=no
AC_TRY_RUN([
/* see runtime/mercury_signal.h for documentation of this code */
#define sigcontext_struct sigcontext
#define __KERNEL__
#include <signal.h>
#undef __KERNEL__
#ifdef MR_HAVE_ASM_SIGCONTEXT_H
#include <asm/sigcontext.h>
#endif
#include "mercury_faultaddr.h"
#include <stdio.h>
#if MR_HAVE_SIGCONTEXT_STRUCT_3ARG
extern void handler(int signum, int code,
struct sigcontext_struct context);
#else
extern void handler(int signum, struct sigcontext_struct context);
#endif
#define FAULT_ADDRESS ((int *)112)
int main() {
signal(SIGSEGV, (void (*)(int))handler);
/* provoke a SIGSEGV */
(*FAULT_ADDRESS)++;
exit(1);
}
#if MR_HAVE_SIGCONTEXT_STRUCT_3ARG
void handler(int signum, int code, struct sigcontext_struct context) {
#else
void handler(int signum, struct sigcontext_struct context) {
#endif
int *addr;
long pc;
addr = (int *) MR_GET_FAULT_ADDR(context);
pc = (long) context.eip;
if (signum == SIGSEGV && addr == FAULT_ADDRESS && pc != 0) {
exit(0);
} else {
exit(1);
}
}], [mercury_cv_pc_access=eip], [true], [true]))
AC_MSG_RESULT($mercury_cv_pc_access)
if test $mercury_cv_pc_access != no; then
AC_DEFINE_UNQUOTED(MR_PC_ACCESS,$mercury_cv_pc_access)
fi
else
AC_MSG_CHECKING(for \`siginfo_t')
AC_CACHE_VAL(mercury_cv_siginfo_t,
mercury_cv_siginfo_t=no
AC_TRY_RUN([
#include <stdio.h>
#include <signal.h>
#ifdef MR_HAVE_SYS_SIGINFO_H
#include <sys/siginfo.h>
#endif
#ifdef MR_HAVE_SYS_SIGNAL_H
#include <sys/signal.h>
#endif
#ifdef MR_HAVE_UCONTEXT_H
#include <ucontext.h>
#endif
#ifdef MR_HAVE_SYS_UCONTEXT_H
#include <sys/ucontext.h>
#endif
int save_signum = 0;
int save_cause;
int save_pc;
extern void handler(int signum, siginfo_t *info, void *context);
int main() {
struct sigaction act;
act.sa_flags = SA_SIGINFO;
act.$mercury_cv_sigaction_field = handler;
if (sigemptyset(&act.sa_mask) != 0)
exit(1);
if (sigaction(SIGSEGV, &act, NULL) != 0)
exit(1);
if (kill(getpid(), SIGSEGV) != 0)
exit(1);
if (save_signum == 0)
exit(1);
exit(0);
}
void handler(int signum, siginfo_t *info, void *context) {
save_signum = signum;
save_cause = info->si_code;
}], [mercury_cv_siginfo_t=yes], [true], [true]))
AC_MSG_RESULT($mercury_cv_siginfo_t)
if test $mercury_cv_siginfo_t = yes; then
AC_DEFINE(MR_HAVE_SIGINFO_T)
AC_DEFINE(MR_HAVE_SIGINFO)
AC_MSG_CHECKING(for \`siginfo' pc access at signals)
AC_CACHE_VAL(mercury_cv_pc_access,
mercury_cv_pc_access=no
AC_TRY_RUN([
#include <stdio.h>
#include <signal.h>
#include <sys/siginfo.h>
#ifdef MR_HAVE_UCONTEXT_H
#include <ucontext.h>
#else
#include <sys/ucontext.h>
#endif
int save_signum = 0;
int save_cause;
int save_pc;
extern void handler(int signum, siginfo_t *info, void *context);
int main() {
struct sigaction act;
act.sa_flags = SA_SIGINFO;
act.$mercury_cv_sigaction_field = handler;
if (sigemptyset(&act.sa_mask) != 0)
exit(1);
if (sigaction(SIGSEGV, &act, NULL) != 0)
exit(1);
if (kill(getpid(), SIGSEGV) != 0)
exit(1);
if (save_signum == 0)
exit(1);
exit(0);
}
void handler(int signum, siginfo_t *info, void *context) {
save_signum = signum;
save_cause = info->si_code;
/* Don't use array indexing - the square brackets
are autoconf quote characters */
save_pc = *(((ucontext_t *) context)->uc_mcontext.gregs
+ REG_PC);
}], [mercury_cv_pc_access=REG_PC;mercury_cv_pc_access_greg=yes],
[true], [true])
AC_TRY_RUN([
#include <stdio.h>
#include <signal.h>
#include <sys/siginfo.h>
#ifdef MR_HAVE_UCONTEXT_H
#include <ucontext.h>
#else
#include <sys/ucontext.h>
#endif
int save_signum = 0;
int save_cause;
int save_pc;
extern void handler(int signum, siginfo_t *info, void *context);
int main() {
struct sigaction act;
act.sa_flags = SA_SIGINFO;
act.$mercury_cv_sigaction_field = handler;
if (sigemptyset(&act.sa_mask) != 0)
exit(1);
if (sigaction(SIGSEGV, &act, NULL) != 0)
exit(1);
if (kill(getpid(), SIGSEGV) != 0)
exit(1);
if (save_signum == 0)
exit(1);
exit(0);
}
void handler(int signum, siginfo_t *info, void *context) {
save_signum = signum;
save_cause = info->si_code;
save_pc = *(((ucontext_t *) context)->uc_mcontext.gregs
+ CTX_EPC);
}], [mercury_cv_pc_access=CTX_EPC;mercury_cv_pc_access_greg=yes],
[true], [true])
AC_TRY_RUN([
#include <stdio.h>
#include <signal.h>
#include <sys/siginfo.h>
#ifdef MR_HAVE_UCONTEXT_H
#include <ucontext.h>
#else
#include <sys/ucontext.h>
#endif
int save_signum = 0;
int save_cause;
int save_pc;
extern void handler(int signum, siginfo_t *info, void *context);
int main() {
struct sigaction act;
act.sa_flags = SA_SIGINFO;
act.$mercury_cv_sigaction_field = handler;
if (sigemptyset(&act.sa_mask) != 0)
exit(1);
if (sigaction(SIGSEGV, &act, NULL) != 0)
exit(1);
if (kill(getpid(), SIGSEGV) != 0)
exit(1);
if (save_signum == 0)
exit(1);
exit(0);
}
void handler(int signum, siginfo_t *info, void *context) {
save_signum = signum;
save_cause = info->si_code;
save_pc = ((ucontext_t *) context)->uc_mcontext.sc_pc;
}], [mercury_cv_pc_access=sc_pc;mercury_cv_pc_access_greg=no],
[true], [true])
)
AC_MSG_RESULT($mercury_cv_pc_access)
if test $mercury_cv_pc_access != no; then
AC_DEFINE_UNQUOTED(MR_PC_ACCESS,$mercury_cv_pc_access)
if test $mercury_cv_pc_access_greg != no; then
AC_DEFINE(MR_PC_ACCESS_GREG)
fi
fi
fi
fi
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(for an integer type with the same size as a pointer)
AC_CACHE_VAL(mercury_cv_word_type,
AC_TRY_RUN([
#include <stdio.h>
int main() {
FILE *fp;
fp = fopen("conftest.tags", "w");
if (fp == NULL)
exit(1);
if (sizeof(int) == sizeof(void *))
{
fprintf(fp, "int\n");
exit(0);
}
if (sizeof(long) == sizeof(void *))
{
fprintf(fp, "long\n");
exit(0);
}
fprintf(fp, "unknown\n");
exit(1);
}],
[mercury_cv_word_type=`cat conftest.tags`],
[mercury_cv_word_type=unknown],
[mercury_cv_word_type=unknown])
)
if test "$mercury_cv_word_type" = unknown; then
AC_TRY_RUN([
#include <stdio.h>
int main() {
FILE *fp;
fp = fopen("conftest.tags", "w");
if (fp == NULL)
exit(1);
if (sizeof(long long) == sizeof(void *))
{
fprintf(fp, "long long\n");
exit(0);
}
fprintf(fp, "unknown\n");
exit(1);
}],
[mercury_cv_word_type=`cat conftest.tags`],
[mercury_cv_word_type=unknown],
[mercury_cv_word_type=unknown])
fi
AC_MSG_RESULT($mercury_cv_word_type)
AC_DEFINE_UNQUOTED(MR_WORD_TYPE, $mercury_cv_word_type)
MR_WORD_TYPE=$mercury_cv_word_type
AC_SUBST(MR_WORD_TYPE)
if test "$mercury_cv_word_type" = int; then
AC_DEFINE_UNQUOTED(MR_INTEGER_LENGTH_MODIFIER, "")
elif test "$mercury_cv_word_type" = long; then
AC_DEFINE_UNQUOTED(MR_INTEGER_LENGTH_MODIFIER, "l")
elif test "$mercury_cv_word_type" = "long long"; then
AC_DEFINE_UNQUOTED(MR_INTEGER_LENGTH_MODIFIER, "ll")
else
AC_MSG_ERROR(Cannot determine the length modifier for the MR_Integer type.)
fi
AC_SUBST(MR_INTEGER_LENGTH_MODIFIER)
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(for an integer type of at least 64 bits)
AC_CACHE_VAL(mercury_cv_int_least64_type,
AC_TRY_RUN([
#include <stdio.h>
#include <limits.h>
int main() {
FILE *fp;
fp = fopen("conftest.tags", "w");
if (fp == NULL)
exit(1);
if (sizeof(int) * CHAR_BIT >= 64)
{
fprintf(fp, "int\n");
exit(0);
}
if (sizeof(long) * CHAR_BIT >= 64)
{
fprintf(fp, "long\n");
exit(0);
}
fprintf(fp, "unknown\n");
exit(1);
}],
[mercury_cv_int_least64_type=`cat conftest.tags`],
[mercury_cv_int_least64_type=unknown],
[mercury_cv_int_least64_type=unknown])
)
if test "$mercury_cv_int_least64_type" = unknown; then
AC_TRY_RUN([
#include <stdio.h>
#include <limits.h>
int main() {
FILE *fp;
fp = fopen("conftest.tags", "w");
if (fp == NULL)
exit(1);
if (sizeof(long long) * CHAR_BIT >= 64)
{
fprintf(fp, "long long\n");
exit(0);
}
fprintf(fp, "unknown\n");
exit(1);
}],
[mercury_cv_int_least64_type=`cat conftest.tags`],
[mercury_cv_int_least64_type=unknown],
[mercury_cv_int_least64_type=unknown])
fi
# Uncomment the following line to test how the system behaves
# in the absence of a 64-bit integer type.
# mercury_cv_int_least64_type=unknown
AC_MSG_RESULT($mercury_cv_int_least64_type)
if test "$mercury_cv_int_least64_type" != unknown; then
AC_DEFINE_UNQUOTED(MR_INT_LEAST64_TYPE, $mercury_cv_int_least64_type)
MR_INT_LEAST64_TYPE=$mercury_cv_int_least64_type
AC_SUBST(MR_INT_LEAST64_TYPE)
fi
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(for an integer type of at least 32 bits)
AC_CACHE_VAL(mercury_cv_int_least32_type,
AC_TRY_RUN([
#include <stdio.h>
#include <limits.h>
int main() {
FILE *fp;
fp = fopen("conftest.tags", "w");
if (fp == NULL)
exit(1);
if (sizeof(int) * CHAR_BIT >= 32)
{
fprintf(fp, "int\n");
exit(0);
}
if (sizeof(long) * CHAR_BIT >= 32)
{
fprintf(fp, "long\n");
exit(0);
}
fprintf(fp, "unknown\n");
exit(1);
}],
[mercury_cv_int_least32_type=`cat conftest.tags`],
[mercury_cv_int_least32_type=unknown],
[mercury_cv_int_least32_type=unknown])
)
AC_MSG_RESULT($mercury_cv_int_least32_type)
AC_DEFINE_UNQUOTED(MR_INT_LEAST32_TYPE, $mercury_cv_int_least32_type)
MR_INT_LEAST32_TYPE=$mercury_cv_int_least32_type
AC_SUBST(MR_INT_LEAST32_TYPE)
if test "$mercury_cv_int_least32_type" = int; then
AC_DEFINE_UNQUOTED(MR_INT_LEAST32_MAX, INT_MAX)
AC_DEFINE_UNQUOTED(MR_UINT_LEAST32_MAX, UINT_MAX)
elif test "$mercury_cv_int_least32_type" = long; then
AC_DEFINE_UNQUOTED(MR_INT_LEAST32_MAX, LONG_MAX)
AC_DEFINE_UNQUOTED(MR_UINT_LEAST32_MAX, ULONG_MAX)
else
AC_MSG_ERROR(
[Cannot find the name of the max values
for MR_INT_LEAST32_TYPE.])
fi
AC_SUBST(MR_INT_LEAST32_MAX)
AC_SUBST(MR_UINT_LEAST32_MAX)
#-----------------------------------------------------------------------------#
AC_TYPE_PID_T
AC_CHECK_TYPES([dev_t, ino_t])
case "$ac_cv_type_dev_t" in
yes) AC_DEFINE_UNQUOTED(MR_HAVE_DEV_T) ;;
esac
case "$ac_cv_type_ino_t" in
yes) AC_DEFINE_UNQUOTED(MR_HAVE_INO_T) ;;
esac
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(for an integer type of at least 16 bits)
AC_CACHE_VAL(mercury_cv_int_least16_type,
AC_TRY_RUN([
#include <stdio.h>
#include <limits.h>
int main() {
FILE *fp;
fp = fopen("conftest.tags", "w");
if (fp == NULL)
exit(1);
if (sizeof(short) * CHAR_BIT >= 16)
{
fprintf(fp, "short\n");
exit(0);
}
if (sizeof(int) * CHAR_BIT >= 16)
{
fprintf(fp, "int\n");
exit(0);
}
fprintf(fp, "unknown\n");
exit(1);
}],
[mercury_cv_int_least16_type=`cat conftest.tags`],
[mercury_cv_int_least16_type=unknown],
[mercury_cv_int_least16_type=unknown])
)
AC_MSG_RESULT($mercury_cv_int_least16_type)
AC_DEFINE_UNQUOTED(MR_INT_LEAST16_TYPE, $mercury_cv_int_least16_type)
MR_INT_LEAST16_TYPE=$mercury_cv_int_least16_type
AC_SUBST(MR_INT_LEAST16_TYPE)
if test "$mercury_cv_int_least16_type" = short; then
AC_DEFINE_UNQUOTED(MR_INT_LEAST16_MAX, SHRT_MAX)
AC_DEFINE_UNQUOTED(MR_UINT_LEAST16_MAX, USHRT_MAX)
elif test "$mercury_cv_int_least16_type" = int; then
AC_DEFINE_UNQUOTED(MR_INT_LEAST16_MAX, INT_MAX)
AC_DEFINE_UNQUOTED(MR_UINT_LEAST16_MAX, UINT_MAX)
else
AC_MSG_ERROR(Cannot find the name of the max value for MR_INT_LEAST16_TYPE.)
fi
AC_SUBST(MR_INT_LEAST16_MAX)
AC_SUBST(MR_UINT_LEAST16_MAX)
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(the number of low tag bits available)
AC_CACHE_VAL(mercury_cv_low_tag_bits,
AC_TRY_RUN([
#include <stdio.h>
#include <stdlib.h>
int main() {
FILE *fp;
fp = fopen("conftest.tags", "w");
if (fp == NULL)
exit(1);
if (sizeof(void *) == 4)
{
fprintf(fp, "2\n");
exit(0);
}
if (sizeof(void *) == 8)
{
fprintf(fp, "3\n");
exit(0);
}
if (sizeof(void *) == 16)
{
fprintf(fp, "4\n");
exit(0);
}
fprintf(fp, "0\n");
exit(1);
}],
[mercury_cv_low_tag_bits=`cat conftest.tags`],
[mercury_cv_low_tag_bits=0],
[mercury_cv_low_tag_bits=0])
)
AC_MSG_RESULT($mercury_cv_low_tag_bits)
if test "$mercury_cv_low_tag_bits" -lt 2; then
if test "$BOOTSTRAP_MC" = ""; then
AC_MSG_ERROR(cannot bootstrap: low tag bits less than 2)
exit 1
fi
fi
if test "$mercury_cv_low_tag_bits" -gt 2; then
if test "$BOOTSTRAP_MC" = ""; then
AC_MSG_WARN(bootstrapping using only 2 low tag bits)
mercury_cv_low_tag_bits=2
fi
fi
AC_DEFINE_UNQUOTED(MR_LOW_TAG_BITS, $mercury_cv_low_tag_bits)
LOW_TAG_BITS=$mercury_cv_low_tag_bits
AC_SUBST(LOW_TAG_BITS)
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(the number of bytes per word)
AC_CACHE_VAL(mercury_cv_bytes_per_word,
AC_TRY_RUN([
#include <stdio.h>
#include <stdlib.h>
int main() {
FILE *fp;
fp = fopen("conftest.wordbytes", "w");
if (fp == NULL)
exit(1);
fprintf(fp, "%d\n", sizeof(void *));
exit(0);
}],
[mercury_cv_bytes_per_word=`cat conftest.wordbytes`],
[mercury_cv_bytes_per_word=0],
[mercury_cv_bytes_per_word=0])
)
AC_MSG_RESULT($mercury_cv_bytes_per_word)
AC_DEFINE_UNQUOTED(MR_BYTES_PER_WORD, $mercury_cv_bytes_per_word)
BYTES_PER_WORD=$mercury_cv_bytes_per_word
AC_SUBST(BYTES_PER_WORD)
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(the number of words in a synchronization term)
AC_CACHE_VAL(mercury_cv_sync_term_size,
AC_TRY_RUN([
#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
int main() {
struct {
pthread_mutex_t lock;
int count;
void *parent;
} x;
FILE *fp;
fp = fopen("conftest.syncsize", "w");
if (fp == NULL)
exit(1);
fprintf(fp, "%d\n", (sizeof(void *) - 1 + sizeof(x))/
sizeof(void *));
exit(0);
}],
[mercury_cv_sync_term_size=`cat conftest.syncsize`],
[mercury_cv_sync_term_size=0],
[mercury_cv_sync_term_size=0])
)
AC_MSG_RESULT($mercury_cv_sync_term_size)
AC_DEFINE_UNQUOTED(MR_SYNC_TERM_SIZE, $mercury_cv_sync_term_size)
SYNC_TERM_SIZE=$mercury_cv_sync_term_size
AC_SUBST(SYNC_TERM_SIZE)
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(the number of bits per word)
AC_CACHE_VAL(mercury_cv_bits_per_word,
AC_TRY_RUN([
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
int main() {
FILE *fp;
fp = fopen("conftest.wordbits", "w");
if (fp == NULL)
exit(1);
fprintf(fp, "%d\n", CHAR_BIT * sizeof(void *));
exit(0);
}],
[mercury_cv_bits_per_word=`cat conftest.wordbits`],
[mercury_cv_bits_per_word=0],
[mercury_cv_bits_per_word=0])
)
AC_MSG_RESULT($mercury_cv_bits_per_word)
AC_DEFINE_UNQUOTED(MR_BITS_PER_WORD, $mercury_cv_bits_per_word)
BITS_PER_WORD=$mercury_cv_bits_per_word
AC_SUBST(BITS_PER_WORD)
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(whether we can use unboxed floats)
AC_CACHE_VAL(mercury_cv_unboxed_floats,
AC_TRY_RUN([
int main() {
if (sizeof(double) == sizeof(void *))
exit(0);
else
exit(1);
}],
[mercury_cv_unboxed_floats=yes],
[mercury_cv_unboxed_floats=no],
[mercury_cv_unboxed_floats=no])
)
AC_MSG_RESULT($mercury_cv_unboxed_floats)
if test "$mercury_cv_unboxed_floats" = yes; then
if test "$BOOTSTRAP_MC" = ""; then
AC_MSG_WARN(
[Mercury compiler not yet installed -
**** cannot use unboxed floats, bootstrapping using boxed floats
**** after installation is complete you may want to reinstall
**** from scratch so you can use unboxed floats, which are more
**** efficient.])
mercury_cv_unboxed_floats=no
fi
fi
if test "$mercury_cv_unboxed_floats" = yes; then
HAVE_BOXED_FLOATS="--unboxed-float"
else
AC_DEFINE(MR_BOXED_FLOAT)
HAVE_BOXED_FLOATS="--no-unboxed-float"
fi
AC_SUBST(HAVE_BOXED_FLOATS)
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(whether float is 64-bit)
AC_CACHE_VAL(mercury_cv_float_is_64_bit,
AC_TRY_RUN([
#include <limits.h>
int main() {
if (sizeof(float) * CHAR_BIT == 64)
exit(0);
else
exit(1);
}],
[mercury_cv_float_is_64_bit=yes],
[mercury_cv_float_is_64_bit=no],
[mercury_cv_float_is_64_bit=no])
)
AC_MSG_RESULT($mercury_cv_float_is_64_bit)
if test "$mercury_cv_float_is_64_bit" = yes; then
AC_DEFINE(MR_FLOAT_IS_64_BIT)
fi
AC_SUBST(MR_FLOAT_IS_64_BIT)
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(whether double is 64-bit)
AC_CACHE_VAL(mercury_cv_double_is_64_bit,
AC_TRY_RUN([
#include <limits.h>
int main() {
if (sizeof(double) * CHAR_BIT == 64)
exit(0);
else
exit(1);
}],
[mercury_cv_double_is_64_bit=yes],
[mercury_cv_double_is_64_bit=no],
[mercury_cv_double_is_64_bit=no])
)
AC_MSG_RESULT($mercury_cv_double_is_64_bit)
if test "$mercury_cv_double_is_64_bit" = yes; then
AC_DEFINE(MR_DOUBLE_IS_64_BIT)
fi
AC_SUBST(MR_DOUBLE_IS_64_BIT)
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(whether long double is 64-bit)
AC_CACHE_VAL(mercury_cv_long_double_is_64_bit,
AC_TRY_RUN([
#include <limits.h>
int main() {
if (sizeof(long double) * CHAR_BIT == 64)
exit(0);
else
exit(1);
}],
[mercury_cv_long_double_is_64_bit=yes],
[mercury_cv_long_double_is_64_bit=no],
[mercury_cv_long_double_is_64_bit=no])
)
AC_MSG_RESULT($mercury_cv_long_double_is_64_bit)
if test "$mercury_cv_long_double_is_64_bit" = yes; then
AC_DEFINE(MR_LONG_DOUBLE_IS_64_BIT)
fi
AC_SUBST(MR_LONG_DOUBLE_IS_64_BIT)
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(whether architecture is big-endian)
AC_CACHE_VAL(mercury_cv_is_bigender,
AC_TRY_RUN([
int main() {
int x = 1;
unsigned char *x_p;
x_p = (unsigned char*) &x;
if (*x_p == 0)
exit(0);
else
exit(1);
}],
[mercury_cv_is_bigender=yes],
[mercury_cv_is_bigender=no],
[mercury_cv_is_bigender=no])
)
AC_MSG_RESULT($mercury_cv_is_bigender)
if test "$mercury_cv_is_bigender" = yes; then
AC_DEFINE(MR_BIG_ENDIAN)
fi
AC_SUBST(MR_BIG_ENDIAN)
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(whether architecture is little-endian)
AC_CACHE_VAL(mercury_cv_is_littleender,
AC_TRY_RUN([
int main() {
int x = 1;
unsigned char *x_p;
x_p = (unsigned char*) &x;
if (*x_p == 1)
exit(0);
else
exit(1);
}],
[mercury_cv_is_littleender=yes],
[mercury_cv_is_littleender=no],
[mercury_cv_is_littleender=no])
)
AC_MSG_RESULT($mercury_cv_is_littleender)
if test "$mercury_cv_is_littleender" = yes; then
AC_DEFINE(MR_LITTLE_ENDIAN)
fi
AC_SUBST(MR_LITTLE_ENDIAN)
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(whether we can use files as locks)
AC_CACHE_VAL(mercury_cv_have_ocreat_oexcl,
AC_TRY_COMPILE([
#ifdef MR_HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef MR_HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#ifdef MR_HAVE_FCNTL_H
#include <fcntl.h>
#endif
],
[
#if defined(O_CREAT) && defined(O_EXCL)
#else
/*
** As these macros are not defined the compilation must fail.
** Unmatched brackets should do that for us.
*/
}
#endif
],
[mercury_cv_have_ocreat_oexcl=yes],
[mercury_cv_have_ocreat_oexcl=no])
)
AC_MSG_RESULT($mercury_cv_have_ocreat_oexcl)
if test "$mercury_cv_have_ocreat_oexcl" = yes; then
AC_DEFINE(MR_HAVE_OCREAT_OEXCL)
fi
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(return values of system)
AC_CACHE_VAL(mercury_cv_normal_system_retval,
AC_TRY_RUN([
#include <stdlib.h>
#ifdef MR_HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
int main() {
#if defined (WIFEXITED) && defined (WEXITSTATUS) && \
defined (WIFSIGNALED) && defined (WTERMSIG)
/*
** All the necessary macros for handling the return values of
** system() are defined, so we do not need to test the return
** value of system()
*/
exit(0);
#else
/*
** Normal return values from system() are considered to be
** when high 8 bits of the return value give the exit
** status, and the low 8 bits give the signal number which
** killed the process.
*/
if( system("exit 0") == 0 &&
system("exit 42") == 42 << 8 ) {
/* && system("kill -9 $$") == 9 */
exit(0);
} else {
exit(1);
}
#endif
}],
[mercury_cv_normal_system_retval=yes],
[mercury_cv_normal_system_retval=no],
AC_TRY_COMPILE([#include <sys/wait.h>], [
#if defined (WIFEXITED) && defined (WEXITSTATUS) && \
defined (WIFSIGNALED) && defined (WTERMSIG)
#else
/*
** As these macros are not defined the compilation must fail.
** Unmatched brackets should do that for us.
*/
}
#endif
],
[mercury_cv_normal_system_retval=yes],
[mercury_cv_normal_system_retval=no]))
)
AC_MSG_RESULT($mercury_cv_normal_system_retval)
if test "$mercury_cv_normal_system_retval" = no; then
# Warn since VC++6 compiler fails this test
AC_MSG_WARN(Unable to interpret return values from system)
fi
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(to see if we can handle contexts blocking on IO)
AC_CACHE_VAL(mercury_cv_can_do_pending_io,
AC_TRY_RUN([
#include <sys/types.h>
#include <sys/time.h>
int main() {
fd_set f;
struct timeval zero;
int err;
FD_ZERO(&f);
zero.tv_sec = 0;
zero.tv_usec = 0;
err = select(1, &f, &f, &f, &zero);
exit(err != 0);
}],
[mercury_cv_can_do_pending_io=yes],
[mercury_cv_can_do_pending_io=no],
[mercury_cv_can_do_pending_io=no])
)
AC_MSG_RESULT($mercury_cv_can_do_pending_io)
if test "$mercury_cv_can_do_pending_io" = yes; then
AC_DEFINE(MR_CAN_DO_PENDING_IO)
fi
AC_SUBST(MR_CAN_DO_PENDING_IO)
#-----------------------------------------------------------------------------#
#
# On sparc, x86, and probably on other architectures,
# if we're using non-local gotos, then for egcs 1.1, we need
# `-fno-gcse -fno-function-cse', and for gcc 2.8 we need `-fno-function-cse'.
# Otherwise gcc generates code which initializes registers in the function
# prologue and expects them to be valid later on, which doesn't work with
# non-local gotos, since we jump directly into the middle of a function.
# (Actually I don't know if `-fno-functions-cse' is really needed.
# Maybe you can get away without it. But better to err on the safe side...)
#
# For alpha and for mips, and probably on other architectures, when using
# non-local gotos we need -fomit-frame-pointer, otherwise when compiling
# with --no-c-optimize we run into a problem similar to the one above:
# Gcc generates code which initializes the frame pointer in the
# function prologue, and then expects it to be valid later on, which
# doesn't work with non-local gotos, since we jump directly into the
# middle of a function.
#
# For Irix 5, gcc labels don't work with shared libraries,
# so if we're using gcc labels, we need to use non-shared libraries,
# which means passing -non_shared and -mno-abicalls and also setting
# LIBRARY_PATH.
#
# For x86, gcc global registers only work with -fno-builtin
# and -fno-omit-frame-pointer.
#
# NB. Any changes here may also require changes to scripts/mgnuc.in.
#
CFLAGS_FOR_REGS=
CFLAGS_FOR_GOTOS=
LIBRARY_PATH_FOR_GOTOS=
case $ac_cv_prog_gcc in yes)
case "`$CC --version < /dev/null`" in
2.8*) CFLAGS_FOR_GOTOS="-fno-defer-pop -fno-function-cse" ;;
*) CFLAGS_FOR_GOTOS="-fno-defer-pop -fno-function-cse -fno-gcse" ;;
esac
case "$host" in
mips-sgi-irix5.*)
# Non-local gotos don't work with shared libraries on Irix 5,
# which causes lots of complications.
# Now that we have the hlc back-end, it's not worth
# supporting them.
MERCURY_MSG("Mercury no longer supports gcc non-local on Irix 5")
mercury_cv_asm_labels=no
mercury_cv_gcc_labels=no
CFLAGS_FOR_GOTOS="$CFLAGS_FOR_GOTOS -non_shared -mno-abicalls"
LIBRARY_PATH_FOR_GOTOS="$NONSHARED_LIB_DIR:/usr/lib/nonshared"
;;
esac
case "$host" in
mips-*)
CFLAGS_FOR_GOTOS="$CFLAGS_FOR_GOTOS -fomit-frame-pointer"
;;
i*86-*)
CFLAGS_FOR_REGS="-fno-builtin -fno-omit-frame-pointer"
;;
# We need a special-case hack here, because the auto-config
# gets it wrong on the Alpha: the little example program
# works fine in fast.gc mode, but big programs don't,
# due to problems with the `gp' register. Ideally we
# ought to write a big enough example program to trigger
# the problem, but that would be too much work.
alpha*-dec-*)
MERCURY_MSG(
"asm labels work on the Alpha but plain gcc labels do not")
mercury_cv_asm_labels=yes
mercury_cv_gcc_labels=no
CFLAGS_FOR_GOTOS="$CFLAGS_FOR_GOTOS -fomit-frame-pointer"
;;
# Similarly for rs6000
rs6000-*)
MERCURY_MSG("gcc labels do not work on the RS/6000")
mercury_cv_asm_labels=no
mercury_cv_gcc_labels=no
;;
sparc*)
case "`$CC --version < /dev/null`" in 2.8*)
AC_MSG_WARN(
[Mercury might not work with gcc 2.8 on sparc!
**** We advise using gcc 2.95.x.])
;;
esac
;;
esac
;;
esac
AC_SUBST(CFLAGS_FOR_REGS)
AC_SUBST(CFLAGS_FOR_GOTOS)
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(whether we can use gcc labels)
# Set env vars for compiling with gcc non-local gotos
save_CC="$CC"
save_LIBRARY_PATH="$LIBRARY_PATH"
CC="$CC $CFLAGS_FOR_GOTOS"
if test "$LIBRARY_PATH_FOR_GOTOS" != ""; then
LIBRARY_PATH="$LIBRARY_PATH_FOR_GOTOS:$LIBRARY_PATH"
export LIBRARY_PATH
fi
AC_CACHE_VAL(mercury_cv_gcc_labels,
AC_TRY_RUN([
void *entry_foo_1;
void *entry_bar_1;
void *succip;
int global;
void *dummy_identity_function(void *);
foo() {
entry_foo_1 = && foo_1;
goto *dummy_identity_function(&&return_label);
return_label:
return;
foo_1:
if (global != 42) exit(1);
goto *entry_bar_1;
}
bar() {
entry_bar_1 = && bar_1;
goto *dummy_identity_function(&&return_label);
return_label:
return;
bar_1:
if (global != 42) exit(1);
goto *succip;
}
main() {
global = 42;
foo();
bar();
succip = &&last;
goto *dummy_identity_function(&&return_label);
return_label:
goto *entry_foo_1;
exit(1);
last:
if (global != 42) exit(1);
exit(0);
}
void *dummy_identity_function(void *p) {
return p;
}
], [mercury_cv_gcc_labels=yes], [mercury_cv_gcc_labels=no],
[mercury_cv_gcc_labels=no])
)
AC_MSG_RESULT($mercury_cv_gcc_labels)
if test "$mercury_cv_gcc_labels" = yes; then
AC_DEFINE(MR_HAVE_GCC_LABELS)
fi
if test $mercury_cv_gcc_labels = yes; then
AC_MSG_CHECKING(whether we can use asm labels)
AC_CACHE_VAL(mercury_cv_asm_labels,
AC_TRY_RUN([
void *volatile volatile_global_pointer;
extern void mercury__label1 (void) __asm__("entry_" "mercury__label1" );
main() {
void *addr;
volatile_global_pointer = &&mercury__label1;
addr = &mercury__label1;
goto *addr;
exit(1);
mercury__label1:
__asm__(".globl entry_" "mercury__label1" "\n" "entry_"
"mercury__label1" ":\n"
"/* this is a comment */");
exit(0);
}], [mercury_cv_asm_labels=yes], [mercury_cv_asm_labels=no],
[mercury_cv_asm_labels=no])
)
AC_MSG_RESULT($mercury_cv_asm_labels)
else
mercury_cv_asm_labels=${mercury_cv_asm_labels-no}
fi
HAVE_ASM_LABELS=$mercury_cv_asm_labels
AC_SUBST(HAVE_ASM_LABELS)
if test $HAVE_ASM_LABELS = 1; then
AC_DEFINE(MR_HAVE_ASM_LABELS)
fi
# Restore env vars modified above
CC="$save_CC"
LIBRARY_PATH="$save_LIBRARY_PATH"
#-----------------------------------------------------------------------------#
# We need to ensure that runtime/mercury_conf.h exists, since some of the
# programs we attempt to compile below indirectly include it.
test -f runtime/mercury_conf.h || {
cat > runtime/mercury_conf.h <<EOF
#define MR_WORD_TYPE $MR_WORD_TYPE
EOF
}
#-----------------------------------------------------------------------------#
if test $mercury_cv_gcc_labels = yes || test $mercury_cv_asm_labels = yes; then
AC_MSG_CHECKING(whether we can use gcc labels and global registers)
# Set env vars for compiling with gcc non-local gotos and registers
save_CC="$CC"
save_LIBRARY_PATH="$LIBRARY_PATH"
CC="$CC $CFLAGS_FOR_GOTOS $CFLAGS_FOR_REGS"
if test "$LIBRARY_PATH_FOR_GOTOS" != ""; then
LIBRARY_PATH="$LIBRARY_PATH_FOR_GOTOS:$LIBRARY_PATH"
export LIBRARY_PATH
fi
AC_CACHE_VAL(mercury_cv_gcc_model_fast,
AC_TRY_RUN([
#define MR_USE_GCC_NONLOCAL_GOTOS
#define MR_USE_GCC_GLOBAL_REGISTERS
#include "mercury_engine.h"
changequote(<<,>>)
MercuryEngine MR_engine_base;
changequote([,])
main() {
MR_mr0 = 20;
MR_mr7 = 22;
if (MR_mr0 + MR_mr7 != 42)
exit(1);
exit(0);
}], [mercury_cv_gcc_model_fast=yes], [mercury_cv_gcc_model_fast=no],
[mercury_cv_gcc_model_fast=no])
)
AC_MSG_RESULT($mercury_cv_gcc_model_fast)
# Restore env vars modified above
CC="$save_CC"
LIBRARY_PATH="$save_LIBRARY_PATH"
else
mercury_cv_gcc_model_fast=no
fi
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(whether we can use global registers without gcc labels)
# Set env vars for compiling with gcc registers
save_CC="$CC"
CC="$CC $CFLAGS_FOR_REGS"
AC_CACHE_VAL(mercury_cv_gcc_model_reg,
AC_TRY_RUN([
#define MR_USE_GCC_GLOBAL_REGISTERS
#include "mercury_engine.h"
changequote(<<,>>)
MercuryEngine MR_engine_base;
changequote([,])
main() {
MR_mr0 = 20;
MR_mr7 = 22;
if (MR_mr0 + MR_mr7 != 42)
exit(1);
exit(0);
}], [mercury_cv_gcc_model_reg=yes], [mercury_cv_gcc_model_reg=no],
[mercury_cv_gcc_model_reg=no])
)
AC_MSG_RESULT($mercury_cv_gcc_model_reg)
# Restore env vars modified above
CC="$save_CC"
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(whether we can support profiling on this system)
AC_CACHE_VAL(mercury_cv_profiling,
AC_TRY_CPP([
/* The following code comes from runtime/prof.c */
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <signal.h>
#ifdef MR_HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef MR_HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
/*
** if HZ is not defined, we may be able to use sysconf(_SC_CLK_TCK) instead
*/
#if !defined(HZ) && defined(MR_HAVE_SYSCONF) && defined(_SC_CLK_TCK)
#define HZ ((int)sysconf(_SC_CLK_TCK))
#endif
#if !defined(HZ) || !defined(SIGPROF) || !defined(MR_HAVE_SETITIMER)
#error "Time profiling not supported on this system"
#endif
], [mercury_cv_profiling=yes], [mercury_cv_profiling=no]))
AC_MSG_RESULT($mercury_cv_profiling)
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(if C compiler is egcs)
case "`$CC --version < /dev/null 2>&1`" in
egcs-*)
mercury_cv_egcs=yes
;;
*)
mercury_cv_egcs=no
;;
esac
AC_MSG_RESULT($mercury_cv_egcs)
#-----------------------------------------------------------------------------#
#
# Add an option that disables the deep profiler.
#
AC_ARG_ENABLE(deep-profiler,
[ --enable-deep-profiler=<directory>
install deep profiler CGI script in <directory>],
enable_deep_profiler="$enableval",enable_deep_profiler=default)
AC_MSG_CHECKING(whether to enable the deep profiler)
# We test for all the features needed by the deep profiler.
if test "$MR_HAVE_SYS_TYPES_H" = 1 && \
test "$MR_HAVE_SYS_STAT_H" = 1 && \
test "$MR_HAVE_FCNTL_H" = 1 && \
test "$MR_HAVE_UNISTD_H" = 1 && \
test "$MR_HAVE_DIRENT_H" = 1 && \
test "$ac_cv_func_getpid" = yes && \
test "$ac_cv_func_fork" = yes && \
test "$ac_cv_func_opendir" = yes && \
test "$ac_cv_func_readdir" = yes && \
test "$ac_cv_func_closedir" = yes && \
test "$mercury_cv_have_ocreat_oexcl" = yes
then
mercury_cv_can_enable_deep_profiler=yes
AC_DEFINE(MR_DEEP_PROFILER_ENABLED)
else
mercury_cv_can_enable_deep_profiler=no
fi
# on x86, gcc version egcs-1.1.2 has a bug which causes it to get
# an internal compiler error when compiling library/random.c
# (when that file was build with mmc --intermodule-optimization -O4)
# So if we're using an egcs version of gcc, disable deep profiling.
case "$host" in i*86-*-*)
case "$mercury_cv_egcs" in yes)
mercury_cv_can_enable_deep_profiler=no ;;
esac ;;
esac
mercury_cv_default_cgi_dir=/usr/lib/cgi-bin
case $enable_deep_profiler in
default)
if test -d $mercury_cv_default_cgi_dir; then
mercury_cv_enable_deep_profiler=$mercury_cv_can_enable_deep_profiler
mercury_cv_cgi_dir=$mercury_cv_default_cgi_dir
else
mercury_cv_enable_deep_profiler=no
fi
;;
no)
mercury_cv_enable_deep_profiler=no
;;
*)
if test $enable_deep_profiler = yes; then
mercury_cv_cgi_dir=$mercury_cv_default_cgi_dir
else
mercury_cv_cgi_dir=$enable_deep_profiler
fi
if test $mercury_cv_can_enable_deep_profiler = no; then
AC_MSG_RESULT($enable_deep_profiler)
AC_MSG_ERROR(
[--enable-deep-profiler specified but system
does not support it])
fi
mercury_cv_enable_deep_profiler=yes
;;
esac
if test $mercury_cv_enable_deep_profiler = yes; then
if test -d $mercury_cv_cgi_dir; then
true
else
AC_MSG_RESULT($enable_deep_profiler)
AC_MSG_ERROR(CGI script directory $mercury_cv_cgi_dir does not exist)
fi
fi
AC_MSG_RESULT($mercury_cv_enable_deep_profiler)
ENABLE_DEEP_PROFILER=$mercury_cv_enable_deep_profiler
AC_SUBST(ENABLE_DEEP_PROFILER)
CGIDIR=$mercury_cv_cgi_dir
AC_SUBST(CGIDIR)
#-----------------------------------------------------------------------------#
# Figure out which flavour of pthreads to use, since none of the
# implementations seem to be exactly the same
case $host in
alpha*-dec-osf*)
mercury_cv_use_digital_unix_threads=yes ;;
*)
mercury_cv_use_digital_unix_threads=no ;;
esac
if test $mercury_cv_use_digital_unix_threads = yes; then
AC_DEFINE(MR_DIGITAL_UNIX_PTHREADS)
fi
# Figure out what options we need to pass to the C compiler
# for multithreading. We may need to pass different
# options to tell (a) the Mercury runtime & library
# (b) the boehm collector and (c) the C library
# that they need to be thread-safe.
#
# For Linux, Irix, Solaris, and HPUX,
# the thread-enabled version of the Boehm
# collector contains a reference to dlopen(), so
# if threads are enabled, we need to link with the
# appropriate extra library for that (-ldl on Linux
# and Solaris, -lrt on HPUX, and nothing on Irix).
# XXX That should only be done if conservative GC
# is enabled.
#
# Note that changes here may require changes in scripts/ml.in.
LDFLAGS_FOR_THREADS=
LD_LIBFLAGS_FOR_THREADS=
case "$host" in
*solaris*)
CFLAGS_FOR_THREADS="-DMR_THREAD_SAFE -DSOLARIS_THREADS \
-D_SOLARIS_PTHREADS -DGC_SOLARIS_PTHREADS -D_REENTRANT"
THREAD_LIBS="-lpthread -ldl"
;;
*linux*)
# Note that for old versions of Linux / glibc,
# you may also need to make sure that you don't
# pass -ansi to gcc.
CFLAGS_FOR_THREADS="-DMR_THREAD_SAFE -DLINUX_THREADS \
-D_THREAD_SAFE -D_REENTRANT"
THREAD_LIBS="-lpthread -ldl"
;;
*cygwin*)
THREAD_LIBS=""
case "$CC" in
*cl* | *CL*) # cl is the Microsoft C compiler
CFLAGS_FOR_THREADS="-DMR_THREAD_SAFE -DWIN32_THREADS /MD"
LDFLAGS_FOR_THREADS="/MD"
LD_LIBFLAGS_FOR_THREADS="/MD"
;;
*)
CFLAGS_FOR_THREADS="-DMR_THREAD_SAFE" ;;
esac
;;
# Theoretically we should change this check to *apple*darwin*)
# as darwin should be the same whether or not we are on a powerpc or
# an i386, but since we don't have access to an i386 with darwin
# installed to test this, we currently restrict ourselves to the
# powerpc architecture.
*powerpc*apple*darwin*)
CFLAGS_FOR_THREADS="-DMR_THREAD_SAFE -DGC_DARWIN_THREADS"
THREAD_LIBS=""
;;
### # The threads stuff on Digital Unix (OSF) is not yet enabled because
### # the Boehm garbage collector doesn't support threads on that platform
### # XXX probably we should enable it but report an error if you try to
### # use an *.par.gc* grade
### # XXX is this fixed in the Boehm collector now?
### *-osf*)
### CFLAGS_FOR_THREADS="-DMR_THREAD_SAFE"
### THREAD_LIBS="-lpthreads -lmach -lc_r"
### ;;
### # The threads stuff on HPUX is not yet enabled because
### # we don't have an HPUX box to test it on.
### *hpux*)
### CFLAGS_FOR_THREADS="-DMR_THREAD_SAFE" # XXX incomplete
### THREAD_LIBS="-lpthread -lrt" ;;
### # The threads stuff on IRIX is not yet enabled because
### # we don't have an IRIX box to test it on.
### # (XXX perhaps we should enable it anyway, so it is easier to test?)
### *irix*)
### CFLAGS_FOR_THREADS="-DMR_THREAD_SAFE -DIRIX_THREADS"
### THREAD_LIBS="-lpthread"
### ;;
*)
# Multithreading not (yet) supported on other architectures.
# For multithreading, we need (1) Posix threads and
# (2) a port of the Boehm gc for that architecture
# that works with threads.
CFLAGS_FOR_THREADS=""
;;
esac
AC_SUBST(CFLAGS_FOR_THREADS)
AC_SUBST(THREAD_LIBS)
AC_SUBST(LDFLAGS_FOR_THREADS)
AC_SUBST(LD_LIBFLAGS_FOR_THREADS)
#-----------------------------------------------------------------------------#
#
# Figure out which is the best grade to use for various different purposes.
# In particular, choose the default grade for compiling applications.
#
# BEST_LLDS_BASE_GRADE is the most efficient of the LLDS->C base grades.
if test $mercury_cv_asm_labels = yes; then
if test $mercury_cv_gcc_model_fast = yes; then
BEST_LLDS_BASE_GRADE=asm_fast
else
BEST_LLDS_BASE_GRADE=asm_jump
fi
elif test $mercury_cv_gcc_labels = yes; then
if test $mercury_cv_gcc_model_fast = yes; then
BEST_LLDS_BASE_GRADE=fast
else
BEST_LLDS_BASE_GRADE=jump
fi
else
if test $mercury_cv_gcc_model_reg = yes; then
BEST_LLDS_BASE_GRADE=reg
else
BEST_LLDS_BASE_GRADE=none
fi
fi
# BEST_DEBUG_BASE_GRADE is the most efficient base grade that supports
# debugging (`--trace deep').
BEST_DEBUG_BASE_GRADE=$BEST_LLDS_BASE_GRADE
# DEFAULT_BASE_GRADE is the best overall base grade; it should be reasonably
# efficient, and it should support debugging unless that would compromise
# efficiency too much.
case $BEST_LLDS_BASE_GRADE in
none|fast|jump)
DEFAULT_BASE_GRADE=hlc
;;
asm_fast|asm_jump|reg)
DEFAULT_BASE_GRADE=$BEST_LLDS_BASE_GRADE
;;
*)
AC_MSG_ERROR(invalid BEST_LLDS_BASE_GRADE $BEST_LLDS_BASE_GRADE)
;;
esac
# DEFAULT_GRADE is the default grade used to compile applications.
# This is the same as DEFAULT_BASE_GRADE except that we also want to
# enable conservative garbage collection by default.
# We also allow users to override the default grade by setting
# "DEFAULT_GRADE" in the environment before invoking configure.
if test "$DEFAULT_GRADE" = ""; then
DEFAULT_GRADE=$DEFAULT_BASE_GRADE.gc
fi
MERCURY_MSG("using grade \`$DEFAULT_GRADE' as the default grade for applications")
AC_SUBST(DEFAULT_GRADE)
#-----------------------------------------------------------------------------#
#
# Choose which grade to use for the compiler.
#
# BEST_GRADE_FOR_COMPILER is the best grade for compiling
# the Mercury compiler, if there is already an installed Mercury compiler.
case $BEST_LLDS_BASE_GRADE in
asm_fast)
BEST_GRADE_FOR_COMPILER=asm_fast.gc
;;
*)
BEST_GRADE_FOR_COMPILER=hlc.gc
;;
esac
# BOOTSTRAP_GRADE is the most efficient grade which we can use to bootstrap
# the compiler from the source distribution, if there is no installed Mercury
# compiler. This grade needs to be one for which the C files are
# compatible with the C files that we ship in the source distribution,
# which are generated with grade asm_fast.gc.
# In order to be compatible with grade asm_fast.gc, it needs to be an LLDS
# grade. We generate the same C code for the base LLDS grades, except that a
# couple of them (fast and jump) don't support code addresses in static
# initializers.
case $BEST_LLDS_BASE_GRADE in
jump|fast)
if test $mercury_cv_gcc_model_reg = yes; then
BOOTSTRAP_GRADE=reg.gc
else
BOOTSTRAP_GRADE=none.gc
fi
;;
*)
BOOTSTRAP_GRADE=$BEST_LLDS_BASE_GRADE.gc
;;
esac
# Choose whether to use $BOOTSTRAP_GRADE or $BEST_GRADE_FOR_COMPILER,
# and if necessary remove the previously built C files.
if test "$BEST_GRADE_FOR_COMPILER" != "$BOOTSTRAP_GRADE"; then
if test "$BOOTSTRAP_MC" = ""; then
GRADE="$BOOTSTRAP_GRADE"
AC_MSG_WARN(
[Mercury compiler not yet installed
**** cannot use grade \`$BEST_GRADE_FOR_COMPILER'
**** using grade \`$GRADE' to compile the compiler
**** after installation is complete you should reinstall
**** from scratch so you can use the more efficient
**** grade \`$BEST_GRADE_FOR_COMPILER'.])
else
GRADE=$BEST_GRADE_FOR_COMPILER
MERCURY_MSG(
"using grade \`$GRADE' to compile the compiler
compiler and library will be rebuilt with new grade
installation may take a long time")
find library compiler browser analysis profiler deep_profiler \
-name \*.c -o -name \*.c_date | \
xargs rm > /dev/null 2>&1
fi
else
GRADE=$BEST_GRADE_FOR_COMPILER
MERCURY_MSG("using grade \`$GRADE' to compile the compiler")
fi
AC_SUBST(GRADE)
#-----------------------------------------------------------------------------#
#
# Define options for selecting which grades of the library to install
#
AC_ARG_ENABLE(inefficient-grades,
[ --enable-inefficient-grades
install inefficient versions of the library],
enable_inefficient_grades="$enableval",enable_inefficient_grades=no)
AC_ARG_ENABLE(most-grades,
[ --disable-most-grades install only the essential versions of the library],
enable_most_grades="$enableval",enable_most_grades=yes)
AC_ARG_ENABLE(nogc-grades,
[ --enable-nogc-grades install no-gc versions of the library],
enable_nogc_grades="$enableval",enable_nogc_grades=no)
AC_ARG_ENABLE(agc-grades,
[ --enable-agc-grades install accurate GC versions of the library],
enable_agc_grades="$enableval",enable_agc_grades=no)
AC_ARG_ENABLE(prof-grades,
[ --disable-prof-grades do not install profiling versions of the library],
enable_prof_grades="$enableval",enable_prof_grades=yes)
AC_ARG_ENABLE(trail-grades,
[ --disable-trail-grades do not install trailing versions of the library],
enable_trail_grades="$enableval",enable_trail_grades=yes)
AC_ARG_ENABLE(par-grades,
[ --disable-par-grades do not install thread-safe versions of the library],
enable_par_grades="$enableval",enable_par_grades=yes)
AC_ARG_ENABLE(mm-grades,
[ --enable-mm-grades install minimal model versions of the library],
enable_mm_grades="$enableval",enable_mm_grades=no)
AC_ARG_ENABLE(hlc-prof-grades,
[ --enable-hlc-prof-grades
install profiling versions of the high level C grade],
enable_hlc_prof_grades="$enableval",enable_hlc_prof_grades=no)
AC_ARG_ENABLE(dotnet-grades,
[ --disable-dotnet-grades do not install the .NET grades],
enable_dotnet_grades="$enableval",enable_dotnet_grades=yes)
AC_ARG_ENABLE(libgrades,
[ --enable-libgrades=...
install exactly the given versions of the library.
The versions are specified using a comma-separated
list.
],
enable_libgrades_given=yes;enable_libgrades="$enableval",enable_libgrades_given=no)
if test "$enable_most_grades" = no; then
enable_inefficient_grades=no
enable_nogc_grades=no
enable_agc_grades=no
enable_prof_grades=no
enable_trail_grades=no
enable_mm_grades=no
enable_hlc_prof_grades=no
enable_par_grades=no
enable_dotnet_grades=no
fi
#-----------------------------------------------------------------------------#
#
# Choose which grades of the library to install
#
# Compute all the LLDS base grades.
ALL_LLDS_BASE_GRADES="none"
if test $mercury_cv_gcc_model_reg = yes; then
ALL_LLDS_BASE_GRADES="$ALL_LLDS_BASE_GRADES reg"
fi
if test $mercury_cv_gcc_labels = yes; then
ALL_LLDS_BASE_GRADES="$ALL_LLDS_BASE_GRADES jump"
if test $mercury_cv_gcc_model_fast = yes; then
ALL_LLDS_BASE_GRADES="$ALL_LLDS_BASE_GRADES fast"
fi
fi
if test $mercury_cv_asm_labels = yes; then
if test $mercury_cv_gcc_labels = yes; then
ALL_LLDS_BASE_GRADES="$ALL_LLDS_BASE_GRADES asm_jump"
fi
if test $mercury_cv_gcc_model_fast = yes; then
ALL_LLDS_BASE_GRADES="$ALL_LLDS_BASE_GRADES asm_fast"
fi
fi
# Start with the selected LLDS base grades:
# normally just the best LLDS base grade,
# unless --enable-inefficient-grades was selected,
# in which case we use all the LLDS grades.
if test "$enable_inefficient_grades" = yes; then
BASE_LIBGRADES="$ALL_LLDS_BASE_GRADES"
else
BASE_LIBGRADES="$BEST_LLDS_BASE_GRADE"
fi
# Find all the corresponding `.gc' (--conservative-gc) grades.
# Use both `.gc' and non-`.gc' versions, unless --disable-nogc-grades was set,
# in which case use only the `.gc' versions.
GC_LIBGRADES=""
for grade in $BASE_LIBGRADES; do
GC_LIBGRADES="$GC_LIBGRADES $grade.gc"
done
if test "$enable_nogc_grades" = yes; then
LIBGRADES="$BASE_LIBGRADES $GC_LIBGRADES"
else
LIBGRADES="$GC_LIBGRADES"
fi
# Add `hlc' (--high-level-code, i.e. MLDS back-end) grades
LIBGRADES="$LIBGRADES hlc.gc"
if test "$enable_inefficient_grades" = yes -a "$GCC" = yes ; then
LIBGRADES="$LIBGRADES hlc_nest.gc"
fi
# Add `.agc' (--gc accurate) grades
# Currently only hlc.agc is supported.
if test "$enable_agc_grades" = yes; then
LIBGRADES="$LIBGRADES hlc.agc"
fi
# Add grades for profiling.
if test "$enable_prof_grades" = yes; then
# Add `.prof' (--profiling) grades, if time profiling is supported.
# We want to allow profiling of any installed grade which is likely
# to be the most efficient grade for some application.
# This means we want to support time profiling for
# - both GC and non-GC grades
# since non-GC grades might be best for some applications.
# - both LLDS and hlc grades
# It's also convenient if we support a time profiling variant of
# the default grade, if this is not the same as the most efficient
# grade.
if test $mercury_cv_profiling = yes; then
# Start with profiling versions of the default grade
LIBGRADES="$LIBGRADES $DEFAULT_BASE_GRADE.gc.prof"
if test "$enable_nogc_grades" = yes; then
LIBGRADES="$LIBGRADES $DEFAULT_BASE_GRADE.prof"
fi
# Add profiling versions of the best LLDS grade,
# if this is different than the default grade
if test $BEST_LLDS_BASE_GRADE != $DEFAULT_BASE_GRADE; then
LIBGRADES="$LIBGRADES $BEST_LLDS_BASE_GRADE.gc.prof"
if test "$enable_nogc_grades" = yes; then
LIBGRADES="$LIBGRADES $BEST_LLDS_BASE_GRADE.prof"
fi
fi
# Add profiling versions of the hlc grade,
# if this is different than the ones added above.
if test $enable_hlc_prof_grades = "yes" &&
test hlc != $DEFAULT_BASE_GRADE &&
test hlc != $BEST_LLDS_BASE_GRADE
then
LIBGRADES="$LIBGRADES hlc.gc.prof"
if test "$enable_nogc_grades" = yes; then
LIBGRADES="$LIBGRADES hlc.prof"
fi
fi
fi
# Add a `.memprof' (--memory-profiling) grade.
# Hopefully memory allocation should be pretty much
# independent of the grade, so we don't need to support
# both GC and non-GC versions, or both LLDS and MLDS versions.
LIBGRADES="$LIBGRADES $DEFAULT_BASE_GRADE.gc.memprof"
# Add a `.profdeep' (--deep-profiling) grade,
# if deep profiling is enabled.
if test $mercury_cv_enable_deep_profiler = yes; then
LIBGRADES="$LIBGRADES $BEST_LLDS_BASE_GRADE.gc.profdeep"
fi
fi
if test "$enable_trail_grades" = yes; then
# add `.tr' (--trailing) grades
LIBGRADES="$LIBGRADES $DEFAULT_BASE_GRADE.gc.tr"
if test "$enable_inefficient_grades" = yes; then
if test "$enable_nogc_grades" = yes; then
LIBGRADES="$LIBGRADES $DEFAULT_BASE_GRADE.tr"
else
LIBGRADES="$LIBGRADES"
fi
if test $mercury_cv_profiling = yes &&
test "$enable_prof_grades" = yes
then
LIBGRADES="$LIBGRADES $DEFAULT_BASE_GRADE.gc.prof.tr"
fi
fi
fi
# add `.mm' (--minimal-model) grades
if test "$enable_mm_grades" = yes; then
LIBGRADES="$LIBGRADES $BEST_LLDS_BASE_GRADE.gc.mm \
$BEST_LLDS_BASE_GRADE.gc.mm.debug"
fi
# add `.debug' (--debug) grades
LIBGRADES="$LIBGRADES $BEST_DEBUG_BASE_GRADE.gc.tr.debug"
# Add the .par (thread-safe) grade, if it is supported for this system
if test "$enable_par_grades" = yes -a "$CFLAGS_FOR_THREADS" != ""; then
LIBGRADES="$LIBGRADES hlc.par.gc"
fi
# add .NET back-end grades
if test $mercury_cv_microsoft_dotnet = yes -a "$enable_dotnet_grades" = yes
then
LIBGRADES="$LIBGRADES il"
fi
# Allow the user to override the default list of library grades
if test "$enable_libgrades_given" = yes; then
if test "$enable_libgrades" = no; then
AC_MSG_ERROR(
[--enable-libgrades requires a comma-separated
list of grades as argument])
elif test "$enable_libgrades" = yes; then
AC_MSG_ERROR(
[--enable-libgrades requires a comma-separated
list of grades as argument])
else
# Generate only the grades specified by the user.
raw_grades=`echo $enable_libgrades | sed 's/,/ /g'`
canonical_grades=""
grade_error=false
for raw_grade in $raw_grades
do
if ! test -x scripts/canonical_grade
then
canonical_grades="$canonical_grades $raw_grade"
elif scripts/canonical_grade --grade $raw_grade > .confgrade
then
canonical_grades="$canonical_grades `cat .confgrade`"
else
MERCURY_MSG("--enable-libgrades: $raw_grade is not a grade")
grade_error=true
fi
done
rm -f .confgrade > /dev/null 2>&1
if $grade_error
then
AC_MSG_ERROR(
[invalid grade(s) specified for --enable-libgrades])
fi
LIBGRADES=$canonical_grades
fi
fi
MERCURY_MSG("using \`$LIBGRADES' as the set of library grades to install")
LIBGRADE_OPTS=
for libgrade in $LIBGRADES
do
LIBGRADE_OPTS="$LIBGRADE_OPTS --libgrade $libgrade"
done
AC_SUBST(LIBGRADES)
AC_SUBST(LIBGRADE_OPTS)
#-----------------------------------------------------------------------------#
# Determine how many of the r registers (r1, r2, ...) are real registers.
# Determine how many temporaries may be allocated real registers.
# Find out whether branch instructions have a delay slot.
case "$host" in
i*86-*)
# NUM_REAL_REGS=3
# but succip and sp are real regs, so subtract 2
NUM_REAL_R_REGS=1
NUM_REAL_R_TEMPS=0
HAVE_DELAY_SLOT=
;;
alpha*-*)
# NUM_REAL_REGS=7
# but succip, sp, and hp are real regs, so subtract 3
NUM_REAL_R_REGS=4
NUM_REAL_R_TEMPS=6
HAVE_DELAY_SLOT=
;;
mips-*)
# NUM_REAL_REGS=8
# but succip, sp, and hp are real regs, so subtract 3
NUM_REAL_R_REGS=5
NUM_REAL_R_TEMPS=6
HAVE_DELAY_SLOT=--have-delay-slot
;;
rs6000-*|powerpc-*)
# NUM_REAL_REGS=10
# but succip, sp, hp, maxfr, and curfr are real regs,
# so subtract 5
NUM_REAL_R_REGS=5
NUM_REAL_R_TEMPS=6
HAVE_DELAY_SLOT=
;;
sparc-*)
# NUM_REAL_REGS=10
# but succip, sp, hp, maxfr, and curfr are real regs,
# so subtract 5
NUM_REAL_R_REGS=5
NUM_REAL_R_TEMPS=6
HAVE_DELAY_SLOT=--have-delay-slot
;;
hppa-*)
# NUM_REAL_REGS=8
# but succip, sp, and hp are real regs, so subtract 3
NUM_REAL_R_REGS=5
NUM_REAL_R_TEMPS=6
HAVE_DELAY_SLOT=
;;
*)
NUM_REAL_R_REGS=0
NUM_REAL_R_TEMPS=6
HAVE_DELAY_SLOT=
;;
esac
AC_SUBST(NUM_REAL_R_REGS)
AC_SUBST(NUM_REAL_R_TEMPS)
AC_SUBST(HAVE_DELAY_SLOT)
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(whether the assembler does not handle .type)
AC_CACHE_VAL(mercury_cv_cannot_grok_asm_type_directive, [
case "$host" in
*-sunos4.*)
mercury_cv_cannot_grok_asm_type_directive=yes
;;
*)
mercury_cv_cannot_grok_asm_type_directive=no
;;
esac
])
AC_MSG_RESULT($mercury_cv_cannot_grok_asm_type_directive)
if test $mercury_cv_cannot_grok_asm_type_directive = "yes"; then
AC_DEFINE(MR_CANNOT_GROK_ASM_TYPE_DIRECTIVE)
fi
#-----------------------------------------------------------------------------#
AC_PATH_PROG(AS,as)
AC_MSG_CHECKING(whether the assembler does full preprocessing)
AC_CACHE_VAL(mercury_cv_asm_does_full_preprocessing, [
if test "$AS" != ""; then
# check that it really works
cat > conftest.s << EOF
# define foo(x) \
/* foo */
foo(x)
EOF
if
echo $AS conftest.s >&AC_FD_CC 2>&1 &&
$AS conftest.s </dev/null >&AC_FD_CC 2>&1
then
mercury_cv_asm_does_full_preprocessing="yes"
else
mercury_cv_asm_does_full_preprocessing="no"
fi
rm -f conftest*
else
mercury_cv_asm_does_full_preprocessing="no"
fi
])
AC_MSG_RESULT($mercury_cv_asm_does_full_preprocessing)
if test $mercury_cv_asm_does_full_preprocessing = "no"; then
AS="$GCC_PROG -c -x assembler-with-cpp"
fi
AC_SUBST(AS)
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(whether structure assignment conflicts with global registers)
AC_CACHE_VAL(mercury_cv_cannot_use_structure_assignment,
AC_TRY_RUN([
changequote(<<,>>)
/* MR_USE_GCC_GLOBAL_REGISTERS are essential to the purpose of the test. */
/* We define MR_USE_GCC_NONLOCAL_GOTOS because some platforms (e.g. SPARCs) */
/* cannot have MR_USE_GCC_GLOBAL_REGISTERS without it. */
#define MR_USE_GCC_GLOBAL_REGISTERS
#define MR_USE_GCC_NONLOCAL_GOTOS
#include "mercury_imp.h"
#include "mercury_trace_spy.h"
MR_Spy_Point spied_procs[2];
int main() {
spied_procs[1] = spied_procs[0];
#if __GNUC__ >= 3
/* gcc 3.1 seems to have problems with structure assignment
and global registers, but which this simple test case
doesn't trigger. So just force the test to fail for gcc 3.x. */
exit(1);
#else
exit(0);
#endif
changequote([,])
}],
[mercury_cv_cannot_use_structure_assignment=no],
[mercury_cv_cannot_use_structure_assignment=yes],
[mercury_cv_cannot_use_structure_assignment=yes]))
AC_MSG_RESULT($mercury_cv_cannot_use_structure_assignment)
if test $mercury_cv_cannot_use_structure_assignment = "yes"; then
AC_DEFINE(MR_CANNOT_USE_STRUCTURE_ASSIGNMENT)
fi
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(whether Mercury supports shared libraries on this system)
# We ought to use $target here rather than $host - but we don't
# support cross-compilation at the moment anyhow.
# set up some default values that should work on most systems
# see Mmake.common.in for documentation on the meaning of these variables
LINK_EXE=$CC
LINK_SHARED_OBJ="$CC -shared"
LINK_SHARED_OBJ_SH="$CC -shared"
if test "$GCC" = "yes"; then
SHARED_LIBS="\`$CC -print-libgcc-file-name\` \$(MATH_LIB) -lc"
SHARED_LIBS_SH="\`$CC -print-libgcc-file-name\` \$MATH_LIB -lc"
else
SHARED_LIBS='$(MATH_LIB) -lc'
SHARED_LIBS_SH='$MATH_LIB -lc'
fi
EXE_RPATH_OPT="-Wl,-rpath,"
EXE_RPATH_SEP=" -Wl,-rpath,"
SHLIB_RPATH_OPT="-Wl,-rpath,"
SHLIB_RPATH_SEP=" -Wl,-rpath,"
CFLAGS_FOR_PIC="-fpic -DMR_PIC"
EXT_FOR_PIC_OBJECTS=pic_o
# Object files with extension $EXT_FOR_LINK_WITH_PIC_OBJECTS are used
# in executables which are linked with shared Mercury libraries.
# EXT_FOR_LINK_WITH_PIC_OBJECTS should be `lpic_o' if `-DMR_PIC_REG'
# has any effect (currently only on x86), or `o' otherwise.
EXT_FOR_LINK_WITH_PIC_OBJECTS=lpic_o
EXT_FOR_SHARED_LIB=$LIB_SUFFIX
USE_DLLS=no
# The following variables specify options to $LINK_SHARED_OBJ to
# allow/disallow unresolved symbols when building shared libraries.
ALLOW_UNDEFINED=""
ERROR_UNDEFINED=""
DEFAULT_LINKAGE="shared"
case "$host" in
i*86-*-linux|i*86-*-linux-gnu)
case $ac_cv_prog_gcc in
yes)
AC_MSG_RESULT(yes)
EXT_FOR_SHARED_LIB=so
AC_MSG_CHECKING(if linker supports --no-undefined)
rm -f conftest*
echo "int main(void) { return 0; }" > conftest.c
$CC -Wl,--no-undefined -o conftest conftest.c
if test -f conftest; then
AC_MSG_RESULT(yes)
ERROR_UNDEFINED="-Wl,--no-undefined"
AC_MSG_CHECKING(for ld-linux.so)
rm -f conftest*
echo "int main(void) { return 0; }" > conftest.c
$CC -o conftest conftest.c
ld_linux=`ldd ./conftest | \
awk '/ld-linux/{print $1;}'`
case $ld_linux in /lib/ld-linux.so*)
AC_MSG_RESULT($ld_linux)
SHARED_LIBS="$SHARED_LIBS $ld_linux"
SHARED_LIBS_SH="$SHARED_LIBS_SH $ld_linux"
;;
*)
AC_MSG_RESULT(no)
;;
esac
else
AC_MSG_RESULT(no)
fi
rm -f conftest*
;;
*)
case "$CC" in
lcc*)
AC_MSG_RESULT(yes)
EXT_FOR_SHARED_LIB=so
EXE_RPATH_OPT="-Wl-rpath -Wl"
EXE_RPATH_SEP=" -Wl-rpath -Wl"
SHLIB_RPATH_OPT="-Wl-rpath -Wl"
SHLIB_RPATH_SEP=" -Wl-rpath -Wl"
;;
*)
AC_MSG_RESULT(no)
;;
esac
esac
# Shared libraries are not the default on x86 systems that
# use ELF -- see README.Linux
DEFAULT_LINKAGE=static
;;
m68*-linux|m68*-linux-gnu)
AC_MSG_RESULT(yes)
EXT_FOR_SHARED_LIB=so
EXT_FOR_LINK_WITH_PIC_OBJECTS=o
;;
i*86-*-freebsd*)
# From Cornelis van der Laan <nils@ims.uni-stuttgart.de>
AC_MSG_RESULT(yes)
LINK_SHARED_OBJ="ld -Bshareable"
LINK_SHARED_OBJ_SH="ld -Bshareable"
EXT_FOR_SHARED_LIB=so
# From Kevet Duncombe <dunc@acm.org> tested on FreeBSD 2.2.5
EXE_RPATH_OPT="-R"
EXE_RPATH_SEP=" -R"
SHLIB_RPATH_OPT="-R"
SHLIB_RPATH_SEP=" -R"
DEFAULT_LINKAGE=static
;;
i*86-*-solaris2.*)
AC_MSG_RESULT(yes)
# XXX For Solaris/SPARC, we don't link in libgcc.a.
# Why not? Do we need to do the same thing for Solaris/x86?
#SHARED_LIBS="$(MATH_LIB) -lc" # don't link in libgcc.a
#SHARED_LIBS_SH="$MATH_LIB -lc" # don't link in libgcc.a
# XXX We need -mimpure-text because libraries such as
# libreadline.a might be installed with only the .a rather
# than the .so, and not compiled with -fpic,
# and we need to link against them when creating shared libs.
LINK_SHARED_OBJ="$CC -shared -mimpure-text"
LINK_SHARED_OBJ_SH="$CC -shared -mimpure-text"
# XXX We should use the following.
# However, this causes problems on mundroo.cs.mu.oz.au,
# due to the readline library being installed only as
# libreadline.a, with no corresponding libreadline.so.
#ERROR_UNDEFINED="-Wl,-z,defs"
EXE_RPATH_OPT="-R"
EXE_RPATH_SEP=" -R"
SHLIB_RPATH_OPT="-R"
SHLIB_RPATH_SEP=" -R"
EXT_FOR_SHARED_LIB=so
DEFAULT_LINKAGE=static
;;
sparc-sun-solaris2.*)
AC_MSG_RESULT(yes)
SHARED_LIBS="$(MATH_LIB) -lc" # don't link in libgcc.a
SHARED_LIBS_SH="$MATH_LIB -lc" # don't link in libgcc.a
LINK_SHARED_OBJ="$CC -shared -mimpure-text"
LINK_SHARED_OBJ_SH="$CC -shared -mimpure-text"
ERROR_UNDEFINED="-Wl,-z,defs"
EXE_RPATH_OPT="-R"
EXE_RPATH_SEP=" -R"
SHLIB_RPATH_OPT="-R"
SHLIB_RPATH_SEP=" -R"
CFLAGS_FOR_PIC="-fpic -DMR_PIC" # used only for libgc.{a,so}
EXT_FOR_PIC_OBJECTS=o
EXT_FOR_LINK_WITH_PIC_OBJECTS=o
#
# Note that despite the above definition of CFLAGS_FOR_PIC,
# we don't use `-fpic' for shared libraries on Solaris
# (the definition of EXT_FOR_PIC_OBJECTS=o means that
# CFLAGS_FOR_PIC will be used only for building libgc.a
# and libgc.so.)
#
# The reason for this is that shared libraries work without
# it (well, at least they are shared on disk -- although the
# code is not shared at runtime), and using `-fpic' would
# reduce efficiency.
#
# It works because the Solaris dynamic linker will
# actually do the fixups at runtime for non-PIC code.
# (The code is mapped copy-on-write, and when the linker
# does the fixups, it gets copied. Hence the lack of
# runtime sharing.)
# We need to link with `gcc -shared -mimpure-text'
# rather than `gcc -shared', because `gcc -shared'
# passes `-z text' to the linker, which causes it to
# report an error if any runtime fixups would be needed.
#
# If you *do* use `-fpic', you must also use `-DMR_PIC'.
#
# See runtime/mercury_goto.h for the code that handles PIC
# on SPARCs.
# Note that mixing PIC and non-PIC code is fine on SPARCs
# (though it doesn't work on x86s, due to the use of `ebx'
# in runtime/machdeps/i386_regs.h).
EXT_FOR_SHARED_LIB=so
;;
alpha*-dec-osf*)
AC_MSG_RESULT(yes)
if test "$GCC_PROG" != ""; then
# use gcc to link shared objects
LINK_SHARED_OBJ="$GCC_PROG -shared \
-Wl,-O3,-update_registry,\$(SO_LOCATIONS_DIR)so_locations"
LINK_SHARED_OBJ_SH="gcc -shared \
-Wl,-O3,-update_registry,\${SO_LOCATIONS_DIR}so_locations"
ERROR_UNDEFINED="-Wl,-error_unresolved"
EXE_RPATH_OPT="-Wl,-rpath,"
SHLIB_RPATH_OPT="-Wl,-rpath,"
else
# use cc to link shared objects
LINK_SHARED_OBJ="cc -shared \
-update_registry \$(SO_LOCATIONS_DIR)so_locations"
LINK_SHARED_OBJ_SH="cc -shared \
-update_registry \${SO_LOCATIONS_DIR}so_locations"
ERROR_UNDEFINED="-error_unresolved"
EXE_RPATH_OPT="-rpath "
SHLIB_RPATH_OPT="-rpath "
fi
EXE_RPATH_SEP=":"
SHLIB_RPATH_SEP=":"
EXT_FOR_SHARED_LIB=so
# -fpic not needed on Alpha/OSF, since it is the default
CFLAGS_FOR_PIC=
EXT_FOR_PIC_OBJECTS=o
EXT_FOR_LINK_WITH_PIC_OBJECTS=o
;;
mips-sgi-irix5.*)
LINK_SHARED_OBJ="ld -shared \
-update_registry \$(SO_LOCATIONS_DIR)so_locations \
-quickstart_info -rdata_shared"
LINK_SHARED_OBJ_SH="ld -shared \
-update_registry \${SO_LOCATIONS_DIR}so_locations \
-quickstart_info -rdata_shared"
ERROR_UNDEFINED="-no_unresolved"
EXE_RPATH_OPT="-Wl,-rpath,"
EXE_RPATH_SEP=":"
SHLIB_RPATH_OPT="-rpath "
SHLIB_RPATH_SEP=":"
# -fpic not needed on IRIX, since it is the default
CFLAGS_FOR_PIC=
EXT_FOR_PIC_OBJECTS=o
EXT_FOR_LINK_WITH_PIC_OBJECTS=o
# shared libraries are incompatible with gcc non-local gotos,
case "$GRADE" in
reg.gc | none.gc | hlc.gc)
AC_MSG_RESULT(yes)
EXT_FOR_SHARED_LIB=so
;;
*)
EXT_FOR_SHARED_LIB=a
AC_MSG_RESULT(no)
AC_MSG_RESULT(Read README.IRIX-5)
;;
esac
;;
*-cygwin*)
# disabled for now, since it hasn't been tested
# xxx_MSG_RESULT(yes)
# EXT_FOR_SHARED_LIB=dll
# USE_DLLS=yes
AC_MSG_RESULT(disabled for now because it is untested)
CFLAGS_FOR_PIC=
EXT_FOR_PIC_OBJECTS=o
EXT_FOR_LINK_WITH_PIC_OBJECTS=o
DEFAULT_LINKAGE=static
;;
*)
# CFLAGS_FOR_PIC is used by boehm_gc/Makefile when creating
# libgc.a. If the system doesn't support shared libraries,
# then we should set it to empty, not `-fpic'.
CFLAGS_FOR_PIC=
EXT_FOR_PIC_OBJECTS=o
EXT_FOR_LINK_WITH_PIC_OBJECTS=o
DEFAULT_LINKAGE=static
AC_MSG_RESULT(no)
;;
esac
#-----------------------------------------------------------------------------#
# Note that changes here may require changes in scripts/mgnuc.in.
case "$CC" in
*gcc*)
COMPILER=gcc
CFLAGS_FOR_ANSI="-ansi"
# For a full list of the other gcc warnings that we don't
# enable, and why, see scripts/mgnuc.in.
CFLAGS_FOR_WARNINGS="-Wall -Wwrite-strings -Wshadow -Wmissing-prototypes -Wno-unused -Wno-uninitialized -Wstrict-prototypes"
CFLAGS_FOR_OPT="-O2 -fomit-frame-pointer"
CFLAGS_FOR_DEBUG="-g"
MCFLAGS_FOR_CC=
;;
*lcc*)
COMPILER=lcc
CFLAGS_FOR_ANSI=
# turn off all warnings due to spurious warnings.
CFLAGS_FOR_WARNINGS="-w"
CFLAGS_FOR_OPT=
CFLAGS_FOR_DEBUG="-g"
MCFLAGS_FOR_CC=
;;
*cl* | *CL*)
COMPILER=cl
CFLAGS_FOR_ANSI=
CFLAGS_FOR_WARNINGS=
CFLAGS_FOR_OPT=
CFLAGS_FOR_DEBUG="/Zi"
# Using the MSVC compiler implies that we must use a maximum jump
# table size of 512 to avoid a fixed limit in the compiler.
MCFLAGS_FOR_CC="--max-jump-table-size 512"
;;
cc* | */cc*)
COMPILER=cc
CFLAGS_FOR_ANSI=
CFLAGS_FOR_OPT="-O"
CFLAGS_FOR_WARNINGS=
CFLAGS_FOR_DEBUG="-g"
MCFLAGS_FOR_CC=
;;
*)
COMPILER=unknown
CFLAGS_FOR_ANSI=
CFLAGS_FOR_OPT="-O"
CFLAGS_FOR_WARNINGS=
CFLAGS_FOR_DEBUG="-g"
MCFLAGS_FOR_CC=
;;
esac
AC_SUBST(CFLAGS_FOR_ANSI)
AC_SUBST(CFLAGS_FOR_WARNINGS)
AC_SUBST(CFLAGS_FOR_OPT)
AC_SUBST(CFLAGS_FOR_DEBUG)
AC_SUBST(MCFLAGS_FOR_CC)
#-----------------------------------------------------------------------------#
# Work out how to link statically.
# Note that changes here may require changes in scripts/ml.in.
LD_STATIC_FLAGS=
case $COMPILER in gcc|lcc)
LD_STATIC_FLAGS=-static
;;
esac
case $FULLARCH in
*-linux*)
# On Linux, if we're linking statically, we need to
# pass `-defsym _DYNAMIC=0' to the linker, to avoid
# undefined references to _DYNAMIC in
# boehm_gc/dyn_load.c.
# (We might eventually need similar treatment
# for other OSs too)
case $COMPILER in
gcc)
LD_STATIC_FLAGS="-static -Wl-defsym -Wl_DYNAMIC=0"
;;
lcc)
# for lcc 4.1, we need to use "-Wl,".
# for lcc 4.2, we need to use "-Wl" without the comma,
# like we do for gcc.
AC_MSG_CHECKING(whether lcc requires comma after -Wl)
LD_STATIC_FLAGS="-static -Wl-defsym -Wl_DYNAMIC=0"
rm -f conftest*
echo "int main() { return 0; }" > conftest.c
if
echo $CC $LD_STATIC_FLAGS conftest.c \
>&AC_FD_CC 2>&1 &&
$CC $LD_STATIC_FLAGS conftest.c \
>&AC_FD_CC 2>&1
then
AC_MSG_RESULT(no)
else
AC_MSG_RESULT(yes)
LD_STATIC_FLAGS="-static -Wl,-defsym -Wl,_DYNAMIC=0"
fi
rm -f conftest*
;;
esac
;;
alpha*-dec-osf*)
case $COMPILER in cc)
LD_STATIC_FLAGS=-non_shared
;;
esac
;;
*-sun-solaris*)
case $COMPILER in cc)
LD_STATIC_FLAGS="-B static"
;;
esac
;;
esac
# we can't put the call to MSG_CHECKING at the start of the case statement
# above, because of the nested check in the lcc case. So we just put it
# here immediately before the MSG_RESULT call.
AC_MSG_CHECKING(options for static linking)
AC_MSG_RESULT($LD_STATIC_FLAGS)
case "$LD_STATIC_FLAGS" in "")
AC_MSG_WARN(
[\`mmc --linkage static' and \`ml --static' not implemented with
**** this C compiler (\`$CC').])
esac
#-----------------------------------------------------------------------------#
case "$host" in
*-cygwin*)
EXT_FOR_EXE=".exe"
;;
*)
EXT_FOR_EXE=
;;
esac
#-----------------------------------------------------------------------------#
AC_SUBST(LINK_EXE)
AC_SUBST(LD_STATIC_FLAGS)
AC_SUBST(DEFAULT_LINKAGE)
AC_SUBST(LINK_SHARED_OBJ)
AC_SUBST(LINK_SHARED_OBJ_SH)
AC_SUBST(ERROR_UNDEFINED)
AC_SUBST(ALLOW_UNDEFINED)
AC_SUBST(EXE_RPATH_OPT)
AC_SUBST(EXE_RPATH_SEP)
AC_SUBST(SHLIB_RPATH_OPT)
AC_SUBST(SHLIB_RPATH_SEP)
AC_SUBST(CFLAGS_FOR_PIC)
AC_SUBST(EXT_FOR_PIC_OBJECTS)
AC_SUBST(EXT_FOR_LINK_WITH_PIC_OBJECTS)
AC_SUBST(EXT_FOR_SHARED_LIB)
AC_SUBST(EXT_FOR_EXE)
AC_SUBST(USE_DLLS)
AC_SUBST(SHARED_LIBS)
AC_SUBST(SHARED_LIBS_SH)
AC_SUBST(DEFAULT_LINKAGE)
if test $USE_DLLS = "yes"; then
AC_DEFINE(MR_USE_DLLS)
fi
#-----------------------------------------------------------------------------#
if test "$BOOTSTRAP_MC" = ""; then
BOOTSTRAP_MC=mmc
fi
BOOTSTRAP_MC="$BOOTSTRAP_MC $HAVE_BOXED_FLOATS --conf-low-tag-bits $LOW_TAG_BITS --bits-per-word $BITS_PER_WORD --bytes-per-word $BYTES_PER_WORD"
AC_SUBST(BOOTSTRAP_MC)
#-----------------------------------------------------------------------------#
# The following allows us to share some subroutines between the
# `ml' and `mgnuc' scripts.
top=`pwd`
INIT_GRADE_OPTIONS=$top/scripts/init_grade_options.sh-subr
PARSE_GRADE_OPTIONS=$top/scripts/parse_grade_options.sh-subr
FINAL_GRADE_OPTIONS=$top/scripts/final_grade_options.sh-subr
PARSE_ML_OPTIONS=$top/scripts/parse_ml_options.sh-subr
CANONICAL_GRADE=$top/scripts/canonical_grade.sh-subr
AC_SUBST_FILE(INIT_GRADE_OPTIONS)
AC_SUBST_FILE(PARSE_GRADE_OPTIONS)
AC_SUBST_FILE(FINAL_GRADE_OPTIONS)
AC_SUBST_FILE(PARSE_ML_OPTIONS)
AC_SUBST_FILE(CANONICAL_GRADE)
# mercury_config includes configure.help to include the help for configure
# in its `--help' output and man page.
${CONFIG_SHELL-/bin/sh} "$0" --help | sed -e 's/`/\\`/g' > configure.help
CONFIGURE_HELP=$top/configure.help
AC_SUBST_FILE(CONFIGURE_HELP)
#-----------------------------------------------------------------------------#
#
# Check for the POSIX struct tms and times() function.
# This is used for the time__times procedure in library/times.m.
#
AC_MSG_CHECKING(for struct tms and times function)
AC_CACHE_VAL(mercury_cv_have_posix_times,
AC_TRY_LINK([
#include <sys/types.h>
#include <sys/times.h>
],[
struct tms t;
long Ut, St, CUt, CSt;
long Ret;
Ret = (long) times(&t);
Ut = (long) t.tms_utime;
St = (long) t.tms_stime;
CUt = (long) t.tms_cutime;
CSt = (long) t.tms_cstime;
],[mercury_cv_have_posix_times=yes],[mercury_cv_have_posix_times=no]))
#
# figure out whether the test succeeded
#
if test "$mercury_cv_have_posix_times" = yes; then
AC_MSG_RESULT(yes)
AC_DEFINE(MR_HAVE_POSIX_TIMES)
else
AC_MSG_RESULT(no)
fi
#-----------------------------------------------------------------------------#
#
# Check for the WIN32 Sleep function
#
AC_MSG_CHECKING(for Sleep function)
AC_CACHE_VAL(mercury_cv_have_capital_s_sleep,
AC_TRY_LINK([
#include <windows.h>
],[
Sleep(1);
],[mercury_cv_have_capital_s_sleep=yes],[mercury_cv_have_capital_s_sleep=no]))
if test "$mercury_cv_have_capital_s_sleep" = yes; then
AC_MSG_RESULT(yes)
AC_DEFINE(MR_HAVE_CAPITAL_S_SLEEP)
else
AC_MSG_RESULT(no)
fi
#-----------------------------------------------------------------------------#
#
# Check for the various IEEE predicates
#
MERCURY_CHECK_FOR_IEEE_FUNC(isnan)
MERCURY_CHECK_FOR_IEEE_FUNC(isnanf)
MERCURY_CHECK_FOR_IEEE_FUNC(isinf)
MERCURY_CHECK_FOR_IEEE_FUNC(isinff)
#-----------------------------------------------------------------------------#
#
# Check whether sockets work (we need them for the external debugger)
#
#
# check whether we need -lsocket
#
AC_CHECK_LIB(socket, socket, SOCKET_LIBRARY=-lsocket, SOCKET_LIBRARY="")
#
# check whether we need -lnsl
#
AC_CHECK_LIB(nsl, inet_addr, NSL_LIBRARY=-lnsl, NSL_LIBRARY="")
#
# temporarily add -lsocket to LIBS, for use by TRY_LINK
#
save_LIBS="$LIBS"
LIBS="$LIBS $SOCKET_LIBRARY $NSL_LIBRARY"
#
# use TRY_LINK to see whether we can use sockets
#
AC_MSG_CHECKING(whether we can use sockets (for Morphine))
AC_CACHE_VAL(mercury_cv_sockets_work,
AC_TRY_LINK([
changequote(<<,>>)
/*
** The following code was copied from
** runtime/mercury_trace_external.c
*/
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdarg.h>
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <netdb.h>
static int MR_debug_socket = 1;
void
fatal_error(const char *s)
{
fprintf(stderr, "", s);
exit(1);
}
],[
/* this is the body of the test function */
{
int fd;
int len;
FILE *file_in;
FILE *file_out;
int addr_family;
char *unix_socket;
char *inet_socket;
struct sockaddr_un unix_address;
struct sockaddr_in inet_address;
struct sockaddr* addr;
/*
** We presume that the user's program has been invoked from
** within the debugger (e.g. Opium).
** The debugger (or the user) should set the
** MERCURY_DEBUGGER_UNIX_SOCKET or MERCURY_DEBUGGER_INET_SOCKET
** environment variable to tell the user's program which socket
** it needs to connect to.
*/
unix_socket = getenv("MERCURY_DEBUGGER_UNIX_SOCKET");
inet_socket = getenv("MERCURY_DEBUGGER_INET_SOCKET");
if (unix_socket == NULL && inet_socket == NULL) {
fatal_error("you must set either the "
"MERCURY_DEBUGGER_UNIX_SOCKET\n"
"or MERCURY_DEBUGGER_INET_SOCKET "
"environment variable");
}
if (unix_socket != NULL && inet_socket != NULL) {
fatal_error("you must set only one of the "
"MERCURY_DEBUGGER_UNIX_SOCKET "
"and MERCURY_DEBUGGER_INET_SOCKET\n"
"environment variables");
}
if (unix_socket) {
addr_family = AF_UNIX;
(memset)(&unix_address, 0, sizeof(unix_address));
unix_address.sun_family = AF_UNIX;
strcpy(unix_address.sun_path, unix_socket);
addr = (struct sockaddr *) &unix_address;
len = strlen(unix_address.sun_path) +
sizeof(unix_address.sun_family);
} else {
char hostname[255];
char port_string[255];
unsigned short port;
int host_addr;
/*
** Parse the MERCURY_DEBUGGER_INET_SOCKET environment variable.
** It should be in the format "<hostname> <port>",
** where <hostname> is numeric (e.g. "123.456.78.90").
*/
if (sscanf(inet_socket, "%254s %254s", hostname, port_string)
!= 2)
{
fatal_error("MERCURY_DEBUGGER_INET_SOCKET invalid");
}
host_addr = inet_addr(hostname);
if (host_addr == -1) {
fatal_error("MERCURY_DEBUGGER_INET_SOCKET: "
"invalid address");
}
if (sscanf(port_string, "%hu", &port) != 1) {
fatal_error("MERCURY_DEBUGGER_INET_SOCKET: "
"invalid port");
}
fprintf(stderr, "Mercury runtime: host = %s, port = %d\n",
hostname, port);
inet_address.sin_family = AF_INET;
inet_address.sin_addr.s_addr = host_addr;
inet_address.sin_port = htons(port);
addr_family = AF_INET;
addr = (struct sockaddr *) &inet_address;
len = sizeof(inet_address);
}
/*
** Open the socket.
*/
fd = socket(addr_family, SOCK_STREAM, 0);
if (fd < 0) {
fprintf(stderr, "Mercury runtime: socket() failed: %s\n",
strerror(errno));
fatal_error("cannot open socket for debugger");
} else if (MR_debug_socket) {
fprintf(stderr,"Mercury runtime: creation of socket ok\n");
}
/*
** Connect to the socket
*/
if (connect(fd, addr, len) < 0) {
fprintf(stderr, "Mercury runtime: connect() failed: %s\n",
strerror(errno));
fatal_error("can't connect to debugger socket");
} else if (MR_debug_socket) {
fprintf(stderr, "Mercury runtime: connection to socket: ok\n");
}
/*
** Convert the socket fd to a Mercury stream
*/
file_in = fdopen(fd, "r");
file_out = fdopen(fd, "w");
if ((file_in == NULL)||(file_out == NULL)) {
fprintf(stderr, "Mercury runtime: fdopen() failed: %s\n",
strerror(errno));
fatal_error("cannot open debugger socket");
} else if (MR_debug_socket) {
fprintf(stderr, "Mercury runtime: fdopen(): ok\n");
}
}
changequote([,])
],[mercury_cv_sockets_work=yes],[mercury_cv_sockets_work=no]))
#
# figure out whether the test succeeded
#
if test "$mercury_cv_sockets_work" = yes; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
#
# restore the previous value of LIBS
#
LIBS="$save_LIBS"
#-----------------------------------------------------------------------------#
#
# Add an option that enables the external debugger support.
# By default, external debugger support is enabled if and only if
# sockets work. But it is also possible to explicitly disable this
# by passing the `--disable-extern-debug' option. This is needed on
# some platforms because the test for sockets working sometimes gets
# some false positives (e.g. if they work with dynamic linking but
# not static linking, then the test will pass, but it will cause
# problems later on when we try to link things statically).
#
AC_ARG_ENABLE(extern-debug,
[ --disable-extern-debug disable the external (separate process) debugger],
mercury_cv_enable_extern_debug="$enableval",
mercury_cv_enable_extern_debug="$mercury_cv_sockets_work")
AC_MSG_CHECKING(whether to enable the external debugger)
if test "$mercury_cv_enable_extern_debug" = "yes"; then
if test "$mercury_cv_sockets_work" = yes; then
AC_MSG_RESULT(yes)
AC_DEFINE(MR_USE_EXTERNAL_DEBUGGER)
else
AC_MSG_RESULT(no)
AC_MSG_ERROR(Cannot enable external debugger because sockets do not work)
fi
else
AC_MSG_RESULT(no)
# don't link with the socket library if we're not going to use it
SOCKET_LIBRARY=
NSL_LIBRARY=
fi
AC_SUBST(SOCKET_LIBRARY)
AC_SUBST(NSL_LIBRARY)
#-----------------------------------------------------------------------------#
#
# Check for dynamic linking, unless the --disable-dynamic-link option
# was specified.
#
AC_ARG_ENABLE(dynamic-link,
[ --disable-dynamic-link disable the use of dynamic linking],
mercury_cv_enable_dynamic_link="$enableval",mercury_cv_enable_dynamic_link=yes)
if test "$mercury_cv_enable_dynamic_link" = "yes"; then
MERCURY_CHECK_FOR_HEADERS(dlfcn.h)
AC_CHECK_LIB(dl, dlopen, DL_LIBRARY="-ldl", DL_LIBRARY="")
AC_SUBST(DL_LIBRARY)
# temporarily add $DL_LIBRARY to LIBS while we check for dlopen etc.
save_LIBS="$LIBS"
LIBS="$LIBS $DL_LIBRARY"
mercury_check_for_functions dlopen dlclose dlsym dlerror
# restore old value of LIBS
LIBS="$save_LIBS"
fi
TRACE_LIBS_SYSTEM="$SOCKET_LIBRARY $NSL_LIBRARY $DL_LIBRARY"
AC_SUBST(TRACE_LIBS_SYSTEM)
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(whether to enable the new MercuryFile struct)
AC_ARG_ENABLE(new-mercuryfile-struct,
[ --enable-new-mercuryfile-struct
enable new MercuryFile struct.],
ac_new_mercuryfile_struct=yes,ac_new_mercuryfile_struct=no)
if test "$ac_new_mercuryfile_struct" = "yes"; then
AC_MSG_RESULT(yes)
AC_DEFINE(MR_NEW_MERCURYFILE_STRUCT)
else
AC_MSG_RESULT(no)
fi
#-----------------------------------------------------------------------------#
MERCURY_CHECK_READLINE
#-----------------------------------------------------------------------------#
mercury_check_c_files () {
c_dir=$1
c_date_dir=$2
for c_file in $c_dir/*.c
do
case $c_file in
*/'*.c')
;;
*/*_init.c)
some_kept=true
;;
*)
sed -e '/END_OF_C_GRADE_INFO/q' < $c_file > confscratch
if grep "TAG_BITS=$mercury_cv_low_tag_bits" \
confscratch > /dev/null 2>&1 \
&& grep "UNBOXED_FLOAT=$mercury_cv_unboxed_floats" \
confscratch > /dev/null 2>&1
then
some_kept=true
else
c_date_file="$c_date_dir/`basename $c_file .c`.c_date"
to_delete="$to_delete $c_file $c_date_file"
fi
;;
esac
done
}
some_kept=false
to_delete=""
if test "$BOOTSTRAP_MC" != "" ; then
MERCURY_MSG("checking whether any C files need to be rebuilt...")
for directory in library compiler profiler deep_profiler browser
do
mercury_check_c_files $directory $directory
mercury_check_c_files $directory/Mercury/cs $directory/Mercury/c_dates
done
if test "$to_delete" = "" ; then
case $some_kept in
true)
MERCURY_MSG("no - they are compatible with autoconfigured settings")
;;
false)
MERCURY_MSG("there are no existing Mercury-generated C files")
;;
esac
else
case $some_kept in
true)
MERCURY_MSG(
"the following C files must be rebuilt in a grade
that is consistent with autoconfigured settings
$to_delete")
;;
false)
MERCURY_MSG(
"all Mercury generated C files must be rebuilt
in a grade that is consistent with the
autoconfigured settings")
;;
esac
MERCURY_MSG("installation may take longer than usual")
fi
rm -f confscratch $to_delete
fi
#-----------------------------------------------------------------------------#
AC_MSG_CHECKING(for C shell executable)
cshpath=""
for prog in tcsh csh
do
for dir in `echo $PATH | tr '[:]' '[ ]'`
do
if test -x "$dir/$prog"
then
if test "$cshpath" = ""
then
cshpath="$dir/$prog"
fi
fi
done
done
if test "$cshpath" = ""
then
AC_MSG_RESULT(no)
CSHPATH="no csh path"
else
AC_MSG_RESULT($cshpath)
CSHPATH="$cshpath"
fi
AC_SUBST(CSHPATH)
#-----------------------------------------------------------------------------#
# Any new entries here may need to be handled by scripts/mercury_config.
AC_OUTPUT(Mmake.common scripts/Mmake.vars scripts/mmc
scripts/mercury.bat scripts/mprof scripts/mercury_update_interface
scripts/mgnuc scripts/parse_ml_options.sh-subr scripts/ml
scripts/c2init scripts/mmake scripts/mdb scripts/mdbrc scripts/mdprof
scripts/canonical_grade
scripts/mkfifo_using_mknod bindist/bindist.INSTALL bindist/bindist.Makefile
scripts/mercury_config scripts/Mercury.config scripts/Mercury.config.bootstrap
tools/lmc tools/dotime runtime/mercury_dotnet.cs java/runtime/Constants.java
,
[
# Only do this when compiling the source, not when reconfiguring
# an installation.
case $reconfiguring in no)
for header in $CONFIG_HEADERS ; do
if test "$header" = "runtime/mercury_conf.h"; then
touch runtime/mercury_conf.h.date
fi
done
# conftest.junk is used to avoid a warning if there
# are no files in the list passed to chmod
touch conftest.junk
chmod +x `echo $CONFIG_FILES | \
sed -e 's/[[^ ]]*Mmake.common//' ` conftest.junk
rm -f conftest.junk
# The --prefix is hard-coded in the scripts, which are regenerated
# every time you run configure, and also (unfortunately) in the .so
# files. The following rm commands are here to ensure that things
# will work correctly if you rerun configure with a new --prefix and
# then don't do a `make clean' before running `make'.
rm -f runtime/libmer_rt.so library/libmer_std.so bytecode/libmbi.so
rm -f trace/libmer_trace.so browser/libmer_browse.so
;;
esac],
[reconfiguring=$reconfiguring]
)
case "$remake_dependencies.$reconfiguring" in "true.no")
MERCURY_MSG(
"regenerating dependencies to enable GCC backend
and/or disable Aditi backend.")
MMAKE_DIR=`pwd`/scripts scripts/mmake depend || exit 1
;;
esac
#-----------------------------------------------------------------------------#
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