comparison src/libsndfile-1.0.27/M4/clang.m4 @ 40:1df64224f5ac

Current libsndfile source

+dnl @synopsis MN_C_COMPILER_IS_CLANG
+dnl
+dnl Find out if a compiler claiming to be gcc really is gcc (fuck you clang).
+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([MN_C_COMPILER_IS_CLANG],
+[AC_CACHE_CHECK(whether we are using the CLANG C compiler,
+	mn_cv_c_compiler_clang,
+	[	AC_LANG_ASSERT(C)
+		AC_TRY_LINK([
+			#include <stdio.h>
+			],
+			[
+			#ifndef __clang__
+				This is not clang!
+			#endif
+			],
+		mn_cv_c_compiler_clang=yes,
+		mn_cv_c_compiler_clang=no
+		])
+	)
+])