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comparison m4/inline.m4 @ 267:bec6d2480f08 2.6

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Added add'l generated files for release
author lost
date Tue, 22 Dec 2009 05:33:32 +0000
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266:5f25e7afac21 267:bec6d2480f08
1 # inline.m4 serial 4
2 dnl Copyright (C) 2006, 2009 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
6
7 dnl Test for the 'inline' keyword or equivalent.
8 dnl Define 'inline' to a supported equivalent, or to nothing if not supported,
9 dnl like AC_C_INLINE does. Also, define HAVE_INLINE if 'inline' or an
10 dnl equivalent is effectively supported, i.e. if the compiler is likely to
11 dnl drop unused 'static inline' functions.
12 AC_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 ])