* Makefile.in: Move use of --nostdinc++ as GCC3.4 warns to use it

for C modules.
	* mingwex/Makefile.in: Ditto.
	* profile/Makefile.in: Ditto.

winsup/mingw/profile/Makefile.in

@@ -49,10 +49,10 @@ THREAD_DLL_NAME = $(THREAD_DLL)$(THREAD_DLL_VERSION).dll
 
 W32API_INCLUDE = @W32API_INCLUDE@
 INCLUDES = -I$(srcdir) -I$(srcdir)/../include \
-  -nostdinc -nostdinc++ \
+  -nostdinc \
   -iwithprefixbefore include
 ALL_CFLAGS = $(CFLAGS) $(W32API_INCLUDE) $(INCLUDES) $(MNO_CYGWIN)
-ALL_CXXFLAGS = $(CXXFLAGS) $(W32API_INCLUDE) $(INCLUDES) $(MNO_CYGWIN)
+ALL_CXXFLAGS = $(CXXFLAGS) $(W32API_INCLUDE) $(INCLUDES) -nostdinc++ $(MNO_CYGWIN)
 
 AS = @AS@
 AR = @AR@