The memfd_create function and its corresponding constants have required _GNU_SOURCE for as long as they've been in glibc. Signed-off-by: Joseph C. Sible <josephcsible@xxxxxxxxx> --- man2/memfd_create.2 | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/man2/memfd_create.2 b/man2/memfd_create.2 index 2c73c27..2060b18 100644 --- a/man2/memfd_create.2 +++ b/man2/memfd_create.2 @@ -22,6 +22,8 @@ .SH NAME memfd_create \- create an anonymous file .SH SYNOPSIS +.nf +.BR "#define _GNU_SOURCE" " /* See feature_test_macros(7) */" .B #include <sys/mman.h> .PP .BI "int memfd_create(const char *" name ", unsigned int " flags ");" @@ -396,6 +398,7 @@ Existing seals: WRITE SHRINK .SS Program source: t_memfd_create.c \& .EX +#define _GNU_SOURCE #include <sys/mman.h> #include <fcntl.h> #include <stdlib.h> @@ -478,6 +481,7 @@ main(int argc, char *argv[]) .SS Program source: t_get_seals.c \& .EX +#define _GNU_SOURCE #include <sys/mman.h> #include <fcntl.h> #include <unistd.h> -- 2.7.4
