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* lib/autoconf/c.m4 (AC_C_INLINE): Test with a typedef return value,

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to avoid versions of HP C which don't allow that.
This commit is contained in:
Kevin Ryde 2002-03-27 22:43:45 +00:00
parent 683f07cff1
commit 980c227c4b
2 changed files with 12 additions and 2 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2002-03-28 Kevin Ryde <user42@zip.com.au>
* lib/autoconf/c.m4 (AC_C_INLINE): Test with a typedef return value,
to avoid versions of HP C which don't allow that.
2002-03-27 Paul Eggert <eggert@twinsun.com>
* lib/m4sugar/m4sh.m4 (_AS_BASENAME_PREPARE): New macro.

9
lib/autoconf/c.m4
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@ -922,6 +922,10 @@ esac
# Do nothing if the compiler accepts the inline keyword.
# Otherwise define inline to __inline__ or __inline if one of those work,
# otherwise define inline to be empty.
#
# HP C version B.11.11.04 doesn't allow a typedef as the return value for an
# inline function, only builtin types.
#
AC_DEFUN([AC_C_INLINE],
[AC_REQUIRE([AC_PROG_CC_STDC])dnl
AC_CACHE_CHECK([for inline], ac_cv_c_inline,
@ -929,8 +933,9 @@ AC_CACHE_CHECK([for inline], ac_cv_c_inline,
for ac_kw in inline __inline__ __inline; do
AC_COMPILE_IFELSE([AC_LANG_SOURCE(
[#ifndef __cplusplus
static $ac_kw int static_foo () {return 0; }
$ac_kw int foo () {return 0; }
typedef int foo_t;
static $ac_kw foo_t static_foo () {return 0; }
$ac_kw foo_t foo () {return 0; }
#endif
])],
[ac_cv_c_inline=$ac_kw; break])