* alloc.c (die): Move "assertion failed" string here ...

* lisp.h (eassert): ... from here.  Also, suppress evaluation of
COND when SUPPRESS_CHECKING.  This shrinks the executable text
size by 0.8% to 2.2% when configured with --enable-checking,
depending on optimization flags (GCC 4.8.1 x86-64).

src/ChangeLog

 2013-06-20  Paul Eggert  <eggert@cs.ucla.edu>
 
+	* alloc.c (die): Move "assertion failed" string here ...
+	* lisp.h (eassert): ... from here.  Also, suppress evaluation of
+	COND when SUPPRESS_CHECKING.  This shrinks the executable text
+	size by 0.8% to 2.2% when configured with --enable-checking,
+	depending on optimization flags (GCC 4.8.1 x86-64).
+
 	* floatfns.c (Flog10): Move to Lisp (marked obsolete there).
 
 2013-06-20  Rüdiger Sonderfeld <ruediger@c-plusplus.de>

src/alloc.c

@@ -6515,7 +6515,7 @@ bool suppress_checking;
 void
 die (const char *msg, const char *file, int line)
 {
-  fprintf (stderr, "\r\n%s:%d: Emacs fatal error: %s\r\n",
+  fprintf (stderr, "\r\n%s:%d: Emacs fatal error: assertion failed: %s\r\n",
 	   file, line, msg);
   terminate_due_to_signal (SIGABRT, INT_MAX);
 }

src/lisp.h

@@ -130,9 +130,9 @@ extern _Noreturn void die (const char *, const char *, int);
 extern bool suppress_checking EXTERNALLY_VISIBLE;
 
 # define eassert(cond)						\
-   ((cond) || suppress_checking					\
+   (suppress_checking || (cond) 				\
     ? (void) 0							\
-    : die ("assertion failed: " # cond, __FILE__, __LINE__))
+    : die (# cond, __FILE__, __LINE__))
 #endif /* ENABLE_CHECKING */
 
 /* Use the configure flag --enable-check-lisp-object-type to make