maint: prepare forthcoming changes

[bison.git] / src / system.h

diff --git a/src/system.h b/src/system.h
index bd94c837edd00450e24bd977eaebd83d78d18908..0d69e93e32a98c5f360ce1d90c52a88030b01001 100644 (file)
--- 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
@@ -52,6 +64,8 @@
 typedef size_t uintptr_t;
 #endif
 
+// Version mismatch.
+#define EX_MISMATCH 63
 
 /*---------.
 | Gnulib.  |
@@ -83,7 +97,7 @@ typedef size_t uintptr_t;
 #ifndef __attribute__
 /* This feature is available in gcc versions 2.5 and later.  */
 # if (! defined __GNUC__ || __GNUC__ < 2 \
-      || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__)
+       || (__GNUC__ == 2 && __GNUC_MINOR__ < 5))
 #  define __attribute__(Spec) /* empty */
 # endif
 #endif