freebsd-spec.h: Add comment about what macros can be defined in this header.

	* config/freebsd-spec.h: Add comment about what macros can be defined
	in this header.
	(LINK_EH_SPEC, LINK_SSP_SPEC, USE_LD_AS_NEEDED): Don't define here.
	* config/freebsd.h (LINK_EH_SPEC, LINK_SSP_SPEC, USE_LD_AS_NEEDED): But
	here instead.

From-SVN: r183970

gcc/ChangeLog

+2012-02-07  Jakub Jelinek  <jakub@redhat.com>
+
+	* config/freebsd-spec.h: Add comment about what macros can be defined
+	in this header.
+	(LINK_EH_SPEC, LINK_SSP_SPEC, USE_LD_AS_NEEDED): Don't define here.
+	* config/freebsd.h (LINK_EH_SPEC, LINK_SSP_SPEC, USE_LD_AS_NEEDED): But
+	here instead.
+
 2012-02-07  Richard Guenther  <rguenther@suse.de>
 
 	* gimple-pretty-print.c (dump_gimple_phi): Avoid excessive

gcc/config/freebsd-spec.h

@@ -134,15 +134,6 @@ is built with the --enable-threads configure-time option.}		\
 #define FBSD_DYNAMIC_LINKER "/libexec/ld-elf.so.1"
 #endif
 
-#if defined(HAVE_LD_EH_FRAME_HDR)
-#define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
-#endif
-
-#ifdef TARGET_LIBC_PROVIDES_SSP
-#define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared}"
-#endif
-
-/* Use --as-needed -lgcc_s for eh support.  */
-#ifdef HAVE_LD_AS_NEEDED
-#define USE_LD_AS_NEEDED 1
-#endif
+/* NOTE: The freebsd-spec.h header is included also for various
+   non-FreeBSD powerpc targets, thus it should never define macros
+   other than FBSD_* prefixed ones, or USING_CONFIG_FREEBSD_SPEC.  */

gcc/config/freebsd.h

 /* Base configuration file for all FreeBSD targets.
    Copyright (C) 1999, 2000, 2001, 2007, 2008, 2009,
-   2010 Free Software Foundation, Inc.
+   2010, 2011, 2012 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -45,6 +45,19 @@ along with GCC; see the file COPYING3.  If not see
 #undef  LIB_SPEC
 #define LIB_SPEC FBSD_LIB_SPEC
 
+#if defined(HAVE_LD_EH_FRAME_HDR)
+#define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
+#endif
+
+#ifdef TARGET_LIBC_PROVIDES_SSP
+#define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared}"
+#endif
+
+/* Use --as-needed -lgcc_s for eh support.  */
+#ifdef HAVE_LD_AS_NEEDED
+#define USE_LD_AS_NEEDED 1
+#endif
+
 /************************[  Target stuff  ]***********************************/
 
 /* All FreeBSD Architectures support the ELF object file format.  */