rs6000.h (CC1_CPU_SPEC): Define as empty string if HAVE_LOCAL_CPU_DETECT not defined.

2007-08-11  David Edelsohn  <edelsohn@gnu.org>
            Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.h (CC1_CPU_SPEC): Define as empty string if
        HAVE_LOCAL_CPU_DETECT not defined.

Co-Authored-By: Segher Boessenkool <segher@kernel.crashing.org>

From-SVN: r127370

gcc/ChangeLog

+2007-08-11  David Edelsohn  <edelsohn@gnu.org>
+	    Segher Boessenkool  <segher@kernel.crashing.org>
+
+	* config/rs6000/rs6000.h (CC1_CPU_SPEC): Define as empty string if
+	HAVE_LOCAL_CPU_DETECT not defined.
+
 2007-08-11  Jan Hubicka  <jh@suse.cz>
 
 	* cgraphunit.c (record_cdtor_fn): Declare all cdtors always inlined.

gcc/config/rs6000/rs6000.h

@@ -149,10 +149,14 @@ extern const char *host_detect_local_cpu (int argc, const char **argv);
 #define HAVE_LOCAL_CPU_DETECT
 #endif
 
-#if !defined (CC1_CPU_SPEC) && defined (HAVE_LOCAL_CPU_DETECT)
+#ifndef CC1_CPU_SPEC
+#ifdef HAVE_LOCAL_CPU_DETECT
 #define CC1_CPU_SPEC \
 "%{mcpu=native:%<mcpu=native %:local_cpu_detect(cpu)} \
  %{mtune=native:%<mtune=native %:local_cpu_detect(tune)}"
+#else
+#define CC1_CPU_SPEC ""
+#endif
 #endif
 
 /* Architecture type.  */