Patch to improve mingw include file handling

[Stan Cox]

Find the mingw include files before the cygwin include files whenever
-mno-cygwin is specified. 

Fri Apr  2 14:35:45 1999  Stan Cox  <scox@cygnus.com>
	* config/i386/cygwin.h (CPP_SPEC): Use mingw_include_path instead
	of a hardcoded path for -mno-cygwin.
	(mingw_include_path): New.

Index: config/i386/cygwin.h
===================================================================
RCS file: /egcs/carton/cvsfiles/egcs/gcc/config/i386/cygwin.h,v
retrieving revision 1.3
diff -u -p -u -r1.3 cygwin.h
--- config/i386/cygwin.h	1999/02/09 23:52:03	1.3
+++ config/i386/cygwin.h	1999/04/02 22:25:41
@@ -86,8 +86,23 @@ Boston, MA 02111-1307, USA. */
 #undef CPP_SPEC
 #define CPP_SPEC "-remap %(cpp_cpu) %{posix:-D_POSIX_SOURCE} \
   %{!mno-cygwin:-D__CYGWIN32__ -D__CYGWIN__} \
-  %{mno-cygwin:-iwithprefixbefore include/mingw32 -D__MINGW32__=0.2}"
+  %{mno-cygwin:-iwithprefixbefore \
+    ../../../../%(mingw_include_path)/include/mingw32 -D__MINGW32__=0.2}"
 
+/* This macro defines names of additional specifications to put in the specs
+   that can be used in various specifications like CC1_SPEC.  Its definition
+   is an initializer with a subgrouping for each command option.
+
+   Each subgrouping contains a string constant, that defines the
+   specification name, and a string constant that used by the GNU CC driver
+   program.
+
+   Do not define this macro if it does not need to do anything.  */
+
+#undef  SUBTARGET_EXTRA_SPECS
+#define SUBTARGET_EXTRA_SPECS 						\
+  { "mingw_include_path", DEFAULT_TARGET_MACHINE }
+
 /* We have to dynamic link to get to the system DLLs.  All of libc, libm and
    the Unix stuff is in cygwin.dll.  The import library is called
    'libcygwin.a'.  For Windows applications, include more libraries, but
@@ -98,8 +113,8 @@ Boston, MA 02111-1307, USA. */
 #define LIB_SPEC "%{pg:-lgmon} \
                   %{!mno-cygwin:-lcygwin} \
                   %{mno-cygwin:-lmingw32 -lmoldname -lcrtdll} \
-                  %{mwindows:-luser32 -lgdi32 -lcomdlg32} \
-		  -lkernel32 -ladvapi32 -lshell32"
+                  %{mwindows:-lgdi32 -lcomdlg32} \
+		  -luser32 -lkernel32 -ladvapi32 -lshell32"
 
 #define LINK_SPEC "%{mwindows:--subsystem windows} \
                    %{mdll:--dll -e _DllMainCRTStartup@12}"