(NULL): Use explicit cast.

075f06ec · Karl Heuer · e336874b · 075f06ec
Commit 075f06ec authored May 26, 1995 by Karl Heuer
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src/regex.c src/regex.c +1 -1

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--- a/src/regex.c
+++ b/src/regex.c
@@ -183,7 +183,7 @@ init_syntax_once ()
 #define ISXDIGIT(c) (ISASCII (c) && isxdigit (c))

 #ifndef NULL
-#define NULL 0
+#define NULL (void *)0
 #endif

 /* We remove any previous definition of `SIGN_EXTEND_CHAR',