Don't try to use libgcc-unwind.map with --disable-shared (PR bootstrap/65725)

2018-12-10  Fredrik Nyström  <fredrik@lysator.liu.se>

	PR bootstrap/65725
	* config/sol2.h: Only use libgcc-unwind.map if
	ENABLE_SHARED_LIBGCC.

From-SVN: r266946

gcc/ChangeLog

+2018-12-10  Fredrik Nyström  <fredrik@lysator.liu.se>
+
+	PR bootstrap/65725
+	* config/sol2.h: Only use libgcc-unwind.map if
+	ENABLE_SHARED_LIBGCC.
+
 2018-12-10  Bin Cheng  <bin.cheng@linux.alibaba.com>
 
 	* auto-profile.c (afdo_calculate_branch_prob): Convert profile_count

gcc/config/sol2.h

@@ -397,7 +397,7 @@ along with GCC; see the file COPYING3.  If not see
 #define SYSROOT_SPEC "-z sysroot=%R"
 #endif
 
-#ifndef USE_GLD
+#if !defined(USE_GLD) && defined(ENABLE_SHARED_LIBGCC)
 /* With Sun ld, use mapfile to enforce direct binding to libgcc_s unwinder.  */
 #define LINK_LIBGCC_MAPFILE_SPEC \
   "%{shared|shared-libgcc:-M %slibgcc-unwind.map}"