X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/c932d6135ca3e508f7136810b9b0bf79725290b9..e34e97bcd736ab3193bfd3abd4162db3b159836d:/src/system.h

diff --git a/src/system.h b/src/system.h
index 52b597b1..9191b556 100644
--- a/src/system.h
+++ b/src/system.h
@@ -52,6 +52,8 @@
 typedef size_t uintptr_t;
 #endif
 
+// Version mismatch.
+#define EX_MISMATCH 63
 
 /*---------.
 | Gnulib.  |