X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/d0f2b7f8566c186f34392efeedbab08c2ae72129..a17187e56386747a9b4d9633c3d116c2087f2b8b:/src/system.h

diff --git a/src/system.h b/src/system.h
index a3168db1..f0a76ceb 100644
--- a/src/system.h
+++ b/src/system.h
@@ -39,6 +39,18 @@
 #include <stdlib.h>
 #include <string.h>
 
+#define STREQ(L, R)  (strcmp(L, R) == 0)
+#define STRNEQ(L, R) (!STREQ(L, R))
+
+/* Just like strncmp, but the second argument must be a literal string
+   and you don't specify the length.  */
+#define STRNCMP_LIT(S, Literal)                         \
+  strncmp (S, "" Literal "", sizeof (Literal) - 1)
+
+/* Whether Literal is a prefix of S.  */
+#define STRPREFIX_LIT(Literal, S)               \
+  (STRNCMP_LIT (S, Literal) == 0)
+
 #if HAVE_SYS_TYPES_H
 # include <sys/types.h>
 #endif
@@ -52,7 +64,8 @@
 typedef size_t uintptr_t;
 #endif
 
-#include <sysexits.h>
+// Version mismatch.
+#define EX_MISMATCH 63
 
 /*---------.
 | Gnulib.  |