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| author | Bruno Haible <bruno@clisp.org> | 2006-11-10 14:37:40 +0000 |
|---|---|---|
| committer | Bruno Haible <bruno@clisp.org> | 2006-11-10 14:37:40 +0000 |
| commit | ba240e2ebbe21e986c41e7af3eac7268716e7702 (patch) | |
| tree | 8788c8c1c1f46ad0735bf9b939f9aa64569006bc | |
| parent | ba700afa42d9f358e78a717d3430883280b048a7 (diff) | |
| download | gnulib-ba240e2ebbe21e986c41e7af3eac7268716e7702.tar.gz | |
Use a command that uses $CC $CFLAGS, not $CPP, to test whether inline is
effective. From Jim.
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | m4/inline.m4 | 17 |
2 files changed, 17 insertions, 6 deletions
@@ -1,5 +1,11 @@ 2006-11-10 Jim Meyering <jim@meyering.net> + * m4/inline.m4 (gl_INLINE): Check with the compiler, not cpp, so that + relevant options in CFLAGS (like -O, -fno-inline) are taken into + account. + +2006-11-10 Jim Meyering <jim@meyering.net> + * modules/inline: New file/module. * modules/xalloc (Files): Remove m4/inline.m4. (Depends-on): Add inline, instead. diff --git a/m4/inline.m4 b/m4/inline.m4 index 2810dd1a22..a07076cd6b 100644 --- a/m4/inline.m4 +++ b/m4/inline.m4 @@ -1,4 +1,4 @@ -# inline.m4 serial 2 +# inline.m4 serial 3 dnl Copyright (C) 2006 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -19,11 +19,16 @@ AC_DEFUN([gl_INLINE], 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 |