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authorTon Voon <tonvoon@users.sourceforge.net>2007-01-24 22:47:25 (GMT)
committerTon Voon <tonvoon@users.sourceforge.net>2007-01-24 22:47:25 (GMT)
commitfe856aa957978504137c1d425815d4ed8a22be40 (patch)
treea5bb46ce0e64b2056f75700eadbf27aba7c39418 /gl/m4/inline.m4
parent210f39bc84cfbb21cd72dc054e43f13815ee0616 (diff)
downloadmonitoring-plugins-fe856aa957978504137c1d425815d4ed8a22be40.tar.gz
Sync with gnulib - lots of extraneous code removed in preference to GNU code
git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@1580 f882894a-f735-0410-b71e-b25c423dba1c
Diffstat (limited to 'gl/m4/inline.m4')
-rw-r--r--gl/m4/inline.m440
1 files changed, 40 insertions, 0 deletions
diff --git a/gl/m4/inline.m4 b/gl/m4/inline.m4
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1# inline.m4 serial 3
2dnl Copyright (C) 2006 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved.
6
7dnl Test for the 'inline' keyword or equivalent.
8dnl Define 'inline' to a supported equivalent, or to nothing if not supported,
9dnl like AC_C_INLINE does. Also, define HAVE_INLINE if 'inline' or an
10dnl equivalent is effectively supported, i.e. if the compiler is likely to
11dnl drop unused 'static inline' functions.
12AC_DEFUN([gl_INLINE],
13[
14 AC_REQUIRE([AC_C_INLINE])
15 AC_CACHE_CHECK([whether the compiler generally respects inline],
16 [gl_cv_c_inline_effective],
17 [if test $ac_cv_c_inline = no; then
18 gl_cv_c_inline_effective=no
19 else
20 dnl GCC defines __NO_INLINE__ if not optimizing or if -fno-inline is
21 dnl specified.
22 dnl Use AC_COMPILE_IFELSE here, not AC_EGREP_CPP, because the result
23 dnl depends on optimization flags, which can be in CFLAGS.
24 dnl (AC_EGREP_CPP looks only at the CPPFLAGS.)
25 AC_COMPILE_IFELSE(
26 [AC_LANG_PROGRAM([[]],
27 [[#ifdef __NO_INLINE__
28 #error "inline is not effective"
29 #endif]])],
30 [gl_cv_c_inline_effective=yes],
31 [gl_cv_c_inline_effective=no])
32 fi
33 ])
34 if test $gl_cv_c_inline_effective = yes; then
35 AC_DEFINE([HAVE_INLINE], 1,
36 [Define to 1 if the compiler supports one of the keywords
37 'inline', '__inline__', '__inline' and effectively inlines
38 functions marked as such.])
39 fi
40])