re PR bootstrap/55961 (system.h includes gmp.h but system.h is included for…

re PR bootstrap/55961 (system.h includes gmp.h but system.h is included for build and not just target)

2013-01-15  Richard Biener  <rguenther@suse.de>

	PR bootstrap/55961
	* system.h: Do not include gmp.h for building host tools.

From-SVN: r195205

gcc/ChangeLog

 2013-01-15  Richard Biener  <rguenther@suse.de>
 
+	PR bootstrap/55961
+	* system.h: Do not include gmp.h for building host tools.
+
+2013-01-15  Richard Biener  <rguenther@suse.de>
+
 	PR middle-end/55882
 	* emit-rtl.c (set_mem_attributes_minus_bitpos): Correctly
 	account for bitpos when computing alignment.

gcc/system.h

@@ -636,7 +636,10 @@ extern int vsnprintf(char *, size_t, const char *, va_list);
 #include <dlfcn.h>
 #endif
 
+/* Do not introduce a gmp.h dependency on the build system.  */
+#ifndef GENERATOR_FILE
 #include <gmp.h>
+#endif
 
 /* Get libiberty declarations.  */
 #include "libiberty.h"