-# inline.m4 serial 2
-dnl Copyright (C) 2006 Free Software Foundation, Inc.
+# inline.m4 serial 4
+dnl Copyright (C) 2006, 2009-2013 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.
else
dnl GCC defines __NO_INLINE__ if not optimizing or if -fno-inline is
dnl specified.
- AC_EGREP_CPP([bummer], [
- #ifdef __NO_INLINE__
- bummer
- #endif
- ], [gl_cv_c_inline_effective=no], [gl_cv_c_inline_effective=yes])
+ 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,
+ 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.])