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README.Linux: Fix my confusion with autoconf options; using --host when cross-compiling is correct.
37 lines
1.2 KiB
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37 lines
1.2 KiB
Plaintext
This file documents the Linux/x86 and Linux/x86_64 ports.
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For the Linux/PowerPC port, see README.Linux-PPC.
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For the Linux/Apha port, see README.Linux-Alpha.
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(Ports to Linux on other architectures have not yet
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been attempted, but should not be difficult.)
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Linux systems that produce executables in a.out format are not supported by
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the Mercury compiler.
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BUILDING A 32-BIT MERCURY COMPILER ON 64-BIT LINUX
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==================================================
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To build a 32-bit Mercury compiler on 64-bit Linux, follow these steps:
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(1) Ensure that the 32-bit (e.g. i686 etc) packages for the C compiler and
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libraries are available on the build system.
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(2) Ensure that you have a working Mercury compiler in your PATH
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to bootstrap from.
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(3) If the Mercury compiler in step (2) is a 64-bit compiler then add
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the following line to a file named Mmake.params at the top-level
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of the source tree:
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MCFLAGS=--cross-compiling
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If you are bootstrapping from an existing 32-bit compiler you
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should not need to do this.
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(4) Run aclocal -I m4; autoconf as normal. Then invoke configure
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as follows:
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$ ./configure --host=i686-pc-linux-gnu --with-cc="gcc -m32"
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(5) Do mmake; mmake install as normal.
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