Add build system scaffolding and libc headers

1 files changed, 14 insertions, 0 deletions

diff --git a/lib/libc/string/strcat.c b/lib/libc/string/strcat.c
new file mode 100644
index 00000000..6caf8c78
--- /dev/null
+++ b/lib/libc/string/strcat.c
@@ -0,0 +1,14 @@
+char *strcat(char *restrict s1, const char *restrict s2)
+{
+	char *d = s1;
+
+	while (*d)
+		d++;
+
+	while (*s2)
+		*d++ = *s2++;
+
+	*d = '\0';
+
+	return s1;
+}