make all header files self-contained and include it in the source file

Including the header in the source file guarantees matching signatures,
thus preventing subtle errors.

Self-contained headers document the required headers and makes using it
easier to use the header in new source files.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/ansi.h b/src/ansi.h
index 5ce68fb..54b4c28 100644
--- a/src/ansi.h
+++ b/src/ansi.h
@@ -30,7 +30,9 @@
 #ifndef SCREEN_ANSI_H
 #define SCREEN_ANSI_H
 
+#include <stdbool.h>
 #include <stdint.h>
+#include <stdlib.h>
 
 #define NATTR		6