(LINK_SPEC): New definition.

From-SVN: r13482

gcc/config/i386/cygwin32.h

@@ -2,7 +2,7 @@
    hosting on Windows NT 3.x, using a Unix style C library and tools,
    as distinct from winnt.h, which is used to build GCC for use with a
    windows style library and tool set and uses the Microsoft tools.
-   Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+   Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -50,6 +50,8 @@ Boston, MA 02111-1307, USA. */
 #undef LIB_SPEC
 #define LIB_SPEC "-lcygwin %{mwindows:-luser32 -lgdi32 -lcomdlg32} -lkernel32"
 
+#define LINK_SPEC "%{mwindows:--subsystem windows}"
+
 /* Normally, -lgcc is not needed since everything in it is in the DLL, but we
    want to allow things to be added to it when installing new versions of
    GCC without making a new CYGWIN.DLL, so we leave it.  */