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* [gcc r11-10449] libsanitizer: Avoid implicit function declaration in configure test
@ 2023-01-04 13:37 Florian Weimer
0 siblings, 0 replies; only message in thread
From: Florian Weimer @ 2023-01-04 13:37 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:d9490634ae2a4aa8a744f31113bbf3757c950746
commit r11-10449-gd9490634ae2a4aa8a744f31113bbf3757c950746
Author: Florian Weimer <fweimer@redhat.com>
Date: Wed Jan 4 11:13:17 2023 +0100
libsanitizer: Avoid implicit function declaration in configure test
libsanitizer/
* configure.ac (sanitizer_supported): Include <unistd.h> for
syscall prototype.
* configure: Regenerate.
(cherry picked from commit 6be2672e4ee41c566a9e072088cccca263bab5f7)
Diff:
---
libsanitizer/configure | 1 +
libsanitizer/configure.ac | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/libsanitizer/configure b/libsanitizer/configure
index 1d9ae59be67..8bdde896fe7 100755
--- a/libsanitizer/configure
+++ b/libsanitizer/configure
@@ -16035,6 +16035,7 @@ 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 13cd302030d..ac24b4b593b 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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