Migrate to using musl 0.9.13 strncat for better asm.js performance.

2 files changed, 11 insertions, 0 deletions

diff --git a/system/lib/libc/musl/src/string/strncat.c b/system/lib/libc/musl/src/string/strncat.c
new file mode 100644
index 00000000..01ca2a23
--- /dev/null
+++ b/system/lib/libc/musl/src/string/strncat.c
@@ -0,0 +1,10 @@
+#include <string.h>
+
+char *strncat(char *restrict d, const char *restrict s, size_t n)
+{
+	char *a = d;
+	d += strlen(d);
+	while (n && *s) n--, *d++ = *s++;
+	*d++ = 0;
+	return a;
+}
diff --git a/system/lib/libcextra.symbols b/system/lib/libcextra.symbols
index fc3eaf99..30a39d52 100644
--- a/system/lib/libcextra.symbols
+++ b/system/lib/libcextra.symbols
@@ -118,6 +118,7 @@
          T strlcat
          T strlcpy
          T strncasecmp_l
+         T strncat
          T strsep
          T strspn
          T strverscmp