From: Jonathan Nieder <jrnieder@gmail.com>
Date: Wed, 16 Dec 2009 04:07:46 +0000 (-0600)
Subject: Simplify y.tab.c when location tracking is disabled.
X-Git-Tag: v2.7.90~741
X-Git-Url: https://git.saurik.com/bison.git/commitdiff_plain/fcd32abd3a4b68ef525d7766dbed1c98465e23b9

Simplify y.tab.c when location tracking is disabled.

* data/yacc.c: Do not check YYLTYPE_IS_TRIVIAL if location
tracking is not enabled.  Instead, unconditionally define
YY_LOCATION_PRINT as a no-op for backward compatibility.
---

diff --git a/ChangeLog b/ChangeLog
index 19dda9df..029826fc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2009-12-15  Jonathan Nieder  <jrnieder@gmail.com>  (tiny change)
+
+	Simplify y.tab.c when location tracking is disabled.
+	* data/yacc.c: Do not check YYLTYPE_IS_TRIVIAL if location
+	tracking is not enabled.  Instead, unconditionally define
+	YY_LOCATION_PRINT as a no-op for backward compatibility.
+
 2009-12-15  Jonathan Nieder  <jrnieder@gmail.com>  (tiny change)
 
 	Avoid warnings from gcc -Wundef y.tab.c.
diff --git a/data/yacc.c b/data/yacc.c
index a7d79481..711d41de 100644
--- a/data/yacc.c
+++ b/data/yacc.c
@@ -662,7 +662,7 @@ while (YYID (0))
     while (YYID (0))
 #endif
 
-
+]b4_locations_if([[
 /* YY_LOCATION_PRINT -- Print the location on the stream.
    This macro was not mandated originally: define only if we know
    we won't break user code: when these are the locations we know.  */
@@ -677,7 +677,13 @@ while (YYID (0))
 #  define YY_LOCATION_PRINT(File, Loc) ((void) 0)
 # endif
 #endif
+]], [[
+/* This macro is provided for backward compatibility. */
 
+#ifndef YY_LOCATION_PRINT
+# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+#endif
+]])[
 
 /* YYLEX -- calling `yylex' with the right arguments.  */