summaryrefslogtreecommitdiff
path: root/libiberty/aclocal.m4
diff options
context:
space:
mode:
authorMichael Sokolov <msokolov@ivan.Harhan.ORG>2000-07-23 16:05:03 +0000
committerJeff Law <law@gcc.gnu.org>2000-07-23 10:05:03 -0600
commit3b58c09931cc776c30aef89f0bac7f6fdca34aca (patch)
tree36f10416500fbf8a5ffa0c7fe7957e1d761edf22 /libiberty/aclocal.m4
parent8502a100662b57e68782022751fbde893bb50213 (diff)
downloadgcc-3b58c09931cc776c30aef89f0bac7f6fdca34aca.tar.gz
aclocal.m4 (libiberty_AC_DECLARE_ERRNO): New macro.
* aclocal.m4 (libiberty_AC_DECLARE_ERRNO): New macro. * configure.in (libiberty_AC_DECLARE_ERRNO): Add check. * configure, config.in: Regenerate. * pexecute.c, strtol.c, strtoul.c: Declare errno if necessary. From-SVN: r35199
Diffstat (limited to 'libiberty/aclocal.m4')
-rw-r--r--libiberty/aclocal.m414
1 files changed, 14 insertions, 0 deletions
diff --git a/libiberty/aclocal.m4 b/libiberty/aclocal.m4
index b6a38d60522..b6c611e132d 100644
--- a/libiberty/aclocal.m4
+++ b/libiberty/aclocal.m4
@@ -69,3 +69,17 @@ if test $ac_cv_func_strncmp_works = no ; then
LIBOBJS="$LIBOBJS strncmp.o"
fi
])
+
+dnl See if errno must be declared even when <errno.h> is included.
+AC_DEFUN(libiberty_AC_DECLARE_ERRNO,
+[AC_CACHE_CHECK(whether errno must be declared, libiberty_cv_declare_errno,
+[AC_TRY_COMPILE(
+[#include <errno.h>],
+[int x = errno;],
+libiberty_cv_declare_errno=no,
+libiberty_cv_declare_errno=yes)])
+if test $libiberty_cv_declare_errno = yes
+then AC_DEFINE(NEED_DECLARATION_ERRNO, 1,
+ [Define if errno must be declared even when <errno.h> is included.])
+fi
+])