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view m4/inline.m4 @ 269:6cbc409ff09f 2.6
Added asprintf redux
author | lost |
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date | Tue, 22 Dec 2009 05:53:05 +0000 |
parents | bec6d2480f08 |
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# inline.m4 serial 4 dnl Copyright (C) 2006, 2009 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Test for the 'inline' keyword or equivalent. dnl Define 'inline' to a supported equivalent, or to nothing if not supported, dnl like AC_C_INLINE does. Also, define HAVE_INLINE if 'inline' or an dnl equivalent is effectively supported, i.e. if the compiler is likely to dnl drop unused 'static inline' functions. AC_DEFUN([gl_INLINE], [ AC_REQUIRE([AC_C_INLINE]) AC_CACHE_CHECK([whether the compiler generally respects inline], [gl_cv_c_inline_effective], [if test $ac_cv_c_inline = no; then gl_cv_c_inline_effective=no else dnl GCC defines __NO_INLINE__ if not optimizing or if -fno-inline is dnl specified. dnl Use AC_COMPILE_IFELSE here, not AC_EGREP_CPP, because the result dnl depends on optimization flags, which can be in CFLAGS. dnl (AC_EGREP_CPP looks only at the CPPFLAGS.) AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[]], [[#ifdef __NO_INLINE__ #error "inline is not effective" #endif]])], [gl_cv_c_inline_effective=yes], [gl_cv_c_inline_effective=no]) fi ]) if test $gl_cv_c_inline_effective = yes; then AC_DEFINE([HAVE_INLINE], [1], [Define to 1 if the compiler supports one of the keywords 'inline', '__inline__', '__inline' and effectively inlines functions marked as such.]) fi ])