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https://bugs.gentoo.org/699886
From 7044c5c6a8e64c737ba3cdb97187ff5c406e5162 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emilio=20Cobos=20=C3=81lvarez?= <emilio@crisal.io>
Date: Thu, 23 May 2019 23:18:26 +0200
Subject: [PATCH] Fix build in newer glibc.
Seems tgkill was added recently to glibc.
build/32/tgkill.c:7:12: error: static declaration of 'tgkill' follows non-static declaration
static int tgkill(int tgid, int tid, int sig) {
^
/usr/include/bits/signal_ext.h:29:12: note: previous declaration is here
extern int tgkill (__pid_t __tgid, __pid_t __tid, int __signal);
---
src/test/tgkill.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
--- a/src/test/tgkill.c
+++ b/src/test/tgkill.c
@@ -4,9 +4,8 @@
static int num_signals_caught;
-static int tgkill(int tgid, int tid, int sig) {
- return syscall(SYS_tgkill, tgid, tid, sig);
-}
+#define tgkill(tgid, tid, sig) \
+ syscall(SYS_tgkill, (int)(tgid), (int)(tid), (int)(sig))
static void sighandler(int sig) {
atomic_printf("Task %d got signal %d\n", sys_gettid(), sig);
--
2.24.0
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