[PATCH 1/1] syscall.2: Update Feature Test Macro Requirements

[PATCH 1/1] syscall.2: Update Feature Test Macro Requirements

[Petr Vorel]

Reported-by: Cyril Hrubis <chrubis@suse.cz>
Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
 man2/syscall.2 | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/man2/syscall.2 b/man2/syscall.2
index 9091b34bb..3fc32cb7a 100644
--- a/man2/syscall.2
+++ b/man2/syscall.2
@@ -44,12 +44,22 @@
 syscall \- indirect system call
 .SH SYNOPSIS
 .nf
-.BR "#define _GNU_SOURCE" "         /* See feature_test_macros(7) */"
 .B #include <unistd.h>
 .BR "#include <sys/syscall.h>   "  "/* For SYS_xxx definitions */"
 .PP
 .BI "long syscall(long " number ", ...);"
 .fi
+.PP
+.in -4n
+Feature Test Macro Requirements for glibc (see
+.BR feature_test_macros (7)):
+.in
+.PP
+.BR syscall ():
+.ad l
+    /* Since glibc 2.19: */ _DEFAULT_SOURCE
+    /* Glibc versions <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
+.ad
 .SH DESCRIPTION
 .BR syscall ()
 is a small library function that invokes
-- 
2.24.1

Re: [PATCH 1/1] syscall.2: Update Feature Test Macro Requirements

[Michael Kerrisk (man-pages)]

Hello Petr,

On 1/9/20 4:46 PM, Petr Vorel wrote:
> Reported-by: Cyril Hrubis <chrubis@suse.cz>
> Signed-off-by: Petr Vorel <pvorel@suse.cz>

Thanks. Patch applied.

Cheers,

Michael

> ---
>  man2/syscall.2 | 12 +++++++++++-
>  1 file changed, 11 insertions(+), 1 deletion(-)
> 
> diff --git a/man2/syscall.2 b/man2/syscall.2
> index 9091b34bb..3fc32cb7a 100644
> --- a/man2/syscall.2
> +++ b/man2/syscall.2
> @@ -44,12 +44,22 @@
>  syscall \- indirect system call
>  .SH SYNOPSIS
>  .nf
> -.BR "#define _GNU_SOURCE" "         /* See feature_test_macros(7) */"
>  .B #include <unistd.h>
>  .BR "#include <sys/syscall.h>   "  "/* For SYS_xxx definitions */"
>  .PP
>  .BI "long syscall(long " number ", ...);"
>  .fi
> +.PP
> +.in -4n
> +Feature Test Macro Requirements for glibc (see
> +.BR feature_test_macros (7)):
> +.in
> +.PP
> +.BR syscall ():
> +.ad l
> +    /* Since glibc 2.19: */ _DEFAULT_SOURCE
> +    /* Glibc versions <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
> +.ad
>  .SH DESCRIPTION
>  .BR syscall ()
>  is a small library function that invokes
> 


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/