1 files changed, 5 insertions, 0 deletions
diff --git a/compiler.c b/compiler.c
index f178ce6..4efecc6 100644
--- a/compiler.c
+++ b/compiler.c
@@ -2,6 +2,11 @@
  * compiler.c - Compile strings into BPEG virtual machine code.
  */
 
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
 #include "compiler.h"
 #include "utils.h"