X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/c21493b89f5f5dd49e1f46d311326d5d4f49f8a4..f5d5ecdfaf97b891f6a634cc58817496a2e0faf8:/src/system.h

diff --git a/src/system.h b/src/system.h
index c1c45b49..63157904 100644
--- a/src/system.h
+++ b/src/system.h
@@ -64,8 +64,6 @@
 typedef size_t uintptr_t;
 #endif
 
-#include <assert.h>
-
 #include <verify.h>
 #include <xalloc.h>
 
@@ -94,8 +92,8 @@ char *base_name (char const *name);
 
 #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__
+# if (! defined __GNUC__ || __GNUC__ < 2 \
+      || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__)
 #  define __attribute__(Spec) /* empty */
 # endif
 #endif
@@ -216,6 +214,11 @@ do {						\
 } while (0)
 
 
+/* Assertions.  <assert.h>'s assertions are too heavyweight, and can
+   be disabled too easily, so implement it separately here.  */
+#define assert(x) ((void) ((x) || (abort (), 0)))
+
+
 /*---------------------------------------------.
 | Debugging memory allocation (must be last).  |
 `---------------------------------------------*/