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ITS#9348 cleanup strerr/sys_errlist detection

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Howard Chu 2020-09-16 22:55:50 +01:00 committed by Quanah Gibson-Mount
parent c3131eb5a3
commit 81e43a6335
1 changed files with 20 additions and 18 deletions
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38
build/openldap.m4
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@ -530,29 +530,32 @@ dnl Check for declaration of sys_errlist in one of stdio.h and errno.h.
dnl Declaration of sys_errlist on BSD4.4 interferes with our declaration.
dnl Reported by Keith Bostic.
AC_DEFUN([OL_SYS_ERRLIST],
[AC_CACHE_CHECK([declaration of sys_errlist],ol_cv_dcl_sys_errlist,[
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
[AC_CACHE_CHECK([existence of sys_errlist],ol_cv_have_sys_errlist,[
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <errno.h>]], [[char *c = (char *) *sys_errlist]])],[ol_cv_have_sys_errlist=yes],[ol_cv_have_sys_errlist=no])])
if test $ol_cv_have_sys_errlist = yes ; then
AC_DEFINE(HAVE_SYS_ERRLIST,1,
[define if you actually have sys_errlist in your libs])
AC_CACHE_CHECK([declaration of sys_errlist],ol_cv_dcl_sys_errlist,[
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <stdio.h>
#include <sys/types.h>
#include <errno.h>
#ifdef _WIN32
#include <stdlib.h>
#endif ]], [[char *c = (char *) *sys_errlist]])],[ol_cv_dcl_sys_errlist=yes
ol_cv_have_sys_errlist=yes],[ol_cv_dcl_sys_errlist=no])])
#endif ]], [[char *c = (char *) *sys_errlist]])],[ol_cv_dcl_sys_errlist=yes],
[ol_cv_dcl_sys_errlist=no])])
#
# It's possible (for near-UNIX clones) that sys_errlist doesn't exist
if test $ol_cv_dcl_sys_errlist = no ; then
AC_DEFINE(DECL_SYS_ERRLIST,1,
[define if sys_errlist is not declared in stdio.h or errno.h])
AC_CACHE_CHECK([existence of sys_errlist],ol_cv_have_sys_errlist,[
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <errno.h>]], [[char *c = (char *) *sys_errlist]])],[ol_cv_have_sys_errlist=yes],[ol_cv_have_sys_errlist=no])])
fi
if test $ol_cv_have_sys_errlist = yes ; then
AC_DEFINE(HAVE_SYS_ERRLIST,1,
[define if you actually have sys_errlist in your libs])
# It's possible (for near-UNIX clones) that sys_errlist doesn't exist
if test $ol_cv_dcl_sys_errlist = no ; then
AC_DEFINE(DECL_SYS_ERRLIST,1,
[define if sys_errlist is not declared in stdio.h or errno.h])
fi
fi
])dnl
dnl
dnl ====================================================================
dnl glibc supplies a non-standard strerror_r if _GNU_SOURCE is defined.
dnl It's actually preferable to the POSIX version, if available.
AC_DEFUN([OL_NONPOSIX_STRERROR_R],
[AC_CACHE_CHECK([non-posix strerror_r],ol_cv_nonposix_strerror_r,[
AC_EGREP_CPP(strerror_r,[#include <string.h>],
@ -572,7 +575,7 @@ AC_DEFUN([OL_NONPOSIX_STRERROR_R],
strerror_r( 1, buf, sizeof buf );
exit( buf[0] == 0 );
}
]])],[ol_cv_nonposix_strerror_r=yes],[ol_cv_nonposix_strerror=no],[ol_cv_nonposix_strerror=no])
]])],[ol_cv_nonposix_strerror_r=yes],[ol_cv_nonposix_strerror_r=no],[ol_cv_nonposix_strerror_r=no])
fi
])
if test $ol_cv_nonposix_strerror_r = yes ; then
@ -582,8 +585,7 @@ fi
])dnl
dnl
AC_DEFUN([OL_STRERROR],
[OL_SYS_ERRLIST dnl TEMPORARY
AC_CHECK_FUNCS(strerror strerror_r)
[AC_CHECK_FUNCS(strerror strerror_r)
ol_cv_func_strerror_r=no
if test "${ac_cv_func_strerror_r}" = yes ; then
OL_NONPOSIX_STRERROR_R