built_in: don't redefine memcpy/memset

Redefining memset/memcpy causes problems when building with fortified
headers on Alpine Linux. Instead of uncoditionally defining these,
explicitely use fmemcpy/fmemset in performance critical paths and
otherwise let the compiler decide about optimizations.

Fixes #173
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

1 files changed, 1 insertions, 0 deletions

diff --git a/link.c b/link.c
index 56b839b..72f513f 100644
--- a/link.c
+++ b/link.c
@@ -1,6 +1,7 @@
 #include <sys/types.h>
 #include <sys/ioctl.h>
 #include <linux/sockios.h>
+#include <string.h>
 #include <unistd.h>
 #include <errno.h>