mirror of
https://github.com/Mercury-Language/mercury.git
synced 2026-04-21 20:33:55 +00:00
c79966ea17
README.clang:
As above.
Add a .md extension.
README.md:
RELEASE_NOTES:
Conform to the above change.
23 lines
908 B
Markdown
23 lines
908 B
Markdown
Mercury with Clang
|
|
==================
|
|
|
|
This file documents how to use `clang` as the C compiler with Mercury.
|
|
Support for Mercury with `clang` has been tested on Linux, macOS and Windows.
|
|
|
|
To use `clang` as the C compiler for Mercury invoke Mercury's `configure`
|
|
script with the `--with-cc` option set as follows:
|
|
|
|
```
|
|
$ ./configure --with-cc=clang
|
|
```
|
|
|
|
Note that the `asm_fast*` and `reg*` grades are not usable with `clang` as they
|
|
rely on GNU C extensions that clang does not provide.
|
|
|
|
Versions of LLVM (the underlying compiler infrastructure used by `clang`) before
|
|
about version 2.9 contain bugs that require most C compiler optimizations to be
|
|
disabled when compiling Mercury generated C code with `clang` (i.e. the
|
|
generated C files have to be compiled at `-O0`). If you are using a more recent
|
|
version of LLVM then the `configure` script will automatically enable a higher
|
|
level of optimization.
|