Reported-by: Cyril Hrubis <chrubis@xxxxxxx> Signed-off-by: Petr Vorel <pvorel@xxxxxxx> --- 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
