32 lines
903 B
Plaintext
32 lines
903 B
Plaintext
dnl @synopsis XIPH_C_COMPILER_IS_CLANG
|
|
dnl
|
|
dnl Find out if a compiler claiming to be gcc really is gcc (clang lies).
|
|
dnl @version 1.0 Oct 31 2013
|
|
dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
|
|
dnl
|
|
dnl Permission to use, copy, modify, distribute, and sell this file for any
|
|
dnl purpose is hereby granted without fee, provided that the above copyright
|
|
dnl and this permission notice appear in all copies. No representations are
|
|
dnl made about the suitability of this software for any purpose. It is
|
|
dnl provided "as is" without express or implied warranty.
|
|
dnl
|
|
|
|
|
|
AC_DEFUN([XIPH_C_COMPILER_IS_CLANG],
|
|
[AC_CACHE_CHECK(whether we are using the CLANG C compiler,
|
|
xiph_cv_c_compiler_clang,
|
|
[ AC_LANG_ASSERT(C)
|
|
AC_TRY_LINK([
|
|
#include <stdio.h>
|
|
],
|
|
[
|
|
#ifndef __clang__
|
|
This is not clang!
|
|
#endif
|
|
],
|
|
xiph_cv_c_compiler_clang=yes,
|
|
xiph_cv_c_compiler_clang=no
|
|
])
|
|
)]
|
|
)
|