* gettid(2) feature test macro and header
@ 2020-05-23 23:55 Joseph C. Sible
2020-05-25 10:57 ` Michael Kerrisk (man-pages)
0 siblings, 1 reply; 2+ messages in thread
From: Joseph C. Sible @ 2020-05-23 23:55 UTC (permalink / raw)
To: Michael Kerrisk-manpages; +Cc: linux-man
The gettid(2) function requires the _GNU_SOURCE feature test macro,
but its man page doesn't mention this. Also, it comes from unistd.h,
but its man page only mentions sys/types.h.
Joseph C. Sible
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: gettid(2) feature test macro and header
2020-05-23 23:55 gettid(2) feature test macro and header Joseph C. Sible
@ 2020-05-25 10:57 ` Michael Kerrisk (man-pages)
0 siblings, 0 replies; 2+ messages in thread
From: Michael Kerrisk (man-pages) @ 2020-05-25 10:57 UTC (permalink / raw)
To: Joseph C. Sible; +Cc: mtk.manpages, linux-man
On 5/24/20 1:55 AM, Joseph C. Sible wrote:
> The gettid(2) function requires the _GNU_SOURCE feature test macro,
> but its man page doesn't mention this. Also, it comes from unistd.h,
> but its man page only mentions sys/types.h.
Thanks, Joseph. I applied the patch below.
Cheers,
Michael
--- a/man2/gettid.2
+++ b/man2/gettid.2
@@ -28,6 +28,8 @@
gettid \- get thread identification
.SH SYNOPSIS
.nf
+.B #define _GNU_SOURCE
+.B #include <unistd.h>
.B #include <sys/types.h>
.PP
.B pid_t gettid(void);
--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/
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