re PR target/42609 (undesired operation when working with mno-cygwin)

	PR target/42609
	* config/i386/cygwin.h (CXX_WRAP_SPEC): Disable spec when -mno-cygwin.

From-SVN: r157931

gcc/ChangeLog

+2010-04-01  Dave Korn  <dave.korn.cygwin@gmail.com>
+
+	PR target/42609
+	* config/i386/cygwin.h (CXX_WRAP_SPEC): Disable spec when -mno-cygwin.
+
 2010-04-01  Jakub Jelinek  <jakub@redhat.com>
 
 	* dwarf2out.c (output_compilation_unit_header): For

gcc/config/i386/cygwin.h

@@ -108,7 +108,7 @@ along with GCC; see the file COPYING3.  If not see
 #define CXX_WRAP_SPEC_OPT "muse-libstdc-wrappers"
 #endif
 
-#define CXX_WRAP_SPEC "%{" CXX_WRAP_SPEC_OPT ":" CXX_WRAP_SPEC_LIST "}"
+#define CXX_WRAP_SPEC "%{!mno-cygwin:%{" CXX_WRAP_SPEC_OPT ":" CXX_WRAP_SPEC_LIST "}}"
 
 #else /* !defined (USE_CYGWIN_LIBSTDCXX_WRAPPERS)  */