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-rw-r--r--src/debug.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/src/debug.c b/src/debug.c
index 2a87305b..370f613c 100644
--- a/src/debug.c
+++ b/src/debug.c
@@ -29,6 +29,9 @@
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
+#if defined(__linux) && defined(HAVE_SYS_GETTID)
+# include <syscall.h>
+#endif
#include <ctype.h>
#include <errno.h>
#include <time.h>
@@ -147,12 +150,16 @@ static int
tid_log_callback (unsigned long *rvalue)
{
int len = sizeof (*rvalue);
- uintptr_t thread;
+ uintptr_t thread = 0;
#ifdef HAVE_W32_SYSTEM
thread = (uintptr_t)GetCurrentThreadId ();
#elif defined(__linux)
- thread = (uintptr_t)gettid ();
+# ifdef HAVE_GETTID
+ thread = (uintptr_t)gettid ();
+# elif defined(HAVE_SYS_GETTID)
+ thread = (uintptr_t)syscall(SYS_gettid);
+# endif
#endif
if (sizeof (thread) < len)
{