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* [gcc r13-3363] libsanitizer: Avoid implicit function declaration in configure test
@ 2022-10-18 14:59 Florian Weimer
0 siblings, 0 replies; only message in thread
From: Florian Weimer @ 2022-10-18 14:59 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:6be2672e4ee41c566a9e072088cccca263bab5f7
commit r13-3363-g6be2672e4ee41c566a9e072088cccca263bab5f7
Author: Florian Weimer <fweimer@redhat.com>
Date: Tue Oct 18 16:58:48 2022 +0200
libsanitizer: Avoid implicit function declaration in configure test
libsanitizer/
* configure.ac (sanitizer_supported): Include <unistd.h> for
syscall prototype.
* configure: Regenerate.
Diff:
---
libsanitizer/configure | 5 +++--
libsanitizer/configure.ac | 3 ++-
2 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/libsanitizer/configure b/libsanitizer/configure
index 3a0c47513e7..cb99faf6100 100755
--- a/libsanitizer/configure
+++ b/libsanitizer/configure
@@ -12383,7 +12383,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 12386 "configure"
+#line 12398 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -12489,7 +12489,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 12492 "configure"
+#line 12504 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -16072,6 +16072,7 @@ case "$target" in
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <sys/syscall.h>
+#include <unistd.h>
int
main ()
{
diff --git a/libsanitizer/configure.ac b/libsanitizer/configure.ac
index 7f1ef3979c4..ad49f29db7e 100644
--- a/libsanitizer/configure.ac
+++ b/libsanitizer/configure.ac
@@ -161,7 +161,8 @@ case "$target" in
*-*-linux*)
# Some old Linux distributions miss required syscalls.
sanitizer_supported=no
- AC_TRY_COMPILE([#include <sys/syscall.h>],[
+ AC_TRY_COMPILE([#include <sys/syscall.h>
+#include <unistd.h>],[
syscall (__NR_gettid);
syscall (__NR_futex);
syscall (__NR_exit_group);
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