Include missing header.

[r24695]

diff --git a/lexer.c b/lexer.c
index fbed584..f7d97af 100644 (file)
--- a/lexer.c
+++ b/lexer.c
@@ -37,6 +37,7 @@
 #include <assert.h>
 #include <errno.h>
 #include <string.h>
+#include <strings.h>
 #include <stdbool.h>
 #include <ctype.h>