Cleanups

liba/Makefile

@@ -2,4 +2,4 @@ SFLAGS += -Iliba/include
 
 liba/src/external/sqlite/mem5.o: CFLAGS += -w
 
-objs += $(addprefix liba/src/, assert.o errno.o malloc.o memcpy.o memset.o external/sqlite/mem5.o)
+objs += $(addprefix liba/src/, assert.o errno.o malloc.o memcpy.o memset.o strlen.o external/sqlite/mem5.o)

liba/include/string.h

@@ -10,7 +10,6 @@ LIBA_BEGIN_DECLS
 
 void * memcpy(void * dst, const void * src, size_t n);
 void * memset(void * b, int c, size_t len);
-
 size_t strlen(const char * s);
 
 LIBA_END_DECLS

liba/src/strlen.c

@@ -0,0 +1,8 @@
+#include <string.h>
+
+size_t strlen(const char * s) {
+  const char * str = s;
+  while (*str)
+    str++;
+  return str - s;
+}