2002-09-18 Mumit Khan <khan@nanotech.wisc.edu>

	Added basic Cygwin support.

	* win/tcl.m4 (SC_PATH_TCLCONFIG): Support one-tree build.
	(SC_PATH_TKCONFIG): Likewise.
	(SC_PROG_TCLSH): Likewise.
	(SC_CONFIG_CFLAGS): Assume real Cygwin port and remove -mno-cygwin
	flags.  Add -mwin32 to extra_cflags and extra_ldflags.
	Remove ``-e _WinMain@16'' from LDFLAGS_WINDOW.
	* win/configure.in: Allow Cygwin build.
	(SEH test): Define to be 1 instead of empty value.
	(EXCEPTION_DISPOSITION): Add test.
	* win/configure: Regenerate.

	* generic/tcl.h: Don't explicitly define __WIN32__ for Cygwin, let
	the user decide whether to use Windows or POSIX personality.
	(TCL_WIDE_INT_TYPE, TCL_LL_MODIFIER, struct Tcl_StatBuf): Define
	for Cygwin.
	* generic/tclEnv.c (Tcl_CygwinPutenv): putenv replacement for
	Cygwin.
	* generic/tclFileName.c (Tcl_TranslateFileName): Convert POSIX
	to native format.
	(TclDoGlob): Likewise.
	* generic/tclPlatDecls.h (TCHAR): Define for Cygwin.
	* win/tclWinPort.h (putenv, TclpSysAlloc, TclpSysFree,
	TclpSysRealloc): Define for Cygwin.

1 files changed, 30 insertions, 6 deletions

diff --git a/win/configure.in b/win/configure.in
index 0d6afab..a3becef 100644
--- a/win/configure.in
+++ b/win/configure.in
@@ -3,7 +3,7 @@
 # generate the file "configure", which is run during Tcl installation
 # to configure the system for the local environment.
 #
-# RCS: @(#) $Id: configure.in,v 1.54 2002/09/02 20:11:06 hobbs Exp $
+# RCS: @(#) $Id: configure.in,v 1.55 2002/09/27 00:50:10 hobbs Exp $
 
 AC_INIT(../generic/tcl.h)
 AC_PREREQ(2.13)
@@ -79,10 +79,10 @@ AC_PROG_MAKE_SET
 
 AC_CYGWIN
 
-if test "$ac_cv_cygwin" = "yes" ; then
-    AC_MSG_ERROR([Compiling with the Cygwin version of gcc is not supported.
-    Use the Mingw version of gcc from www.mingw.org instead.])
-fi
+#if test "$ac_cv_cygwin" = "yes" ; then
+#    AC_MSG_ERROR([Compiling with the Cygwin version of gcc is not supported.
+#    Use the Mingw version of gcc from www.mingw.org instead.])
+#fi
 
 
 AC_CACHE_CHECK(for SEH support in compiler,
@@ -108,10 +108,34 @@ int main(int argc, char** argv) {
         tcl_cv_seh=no)
 )
 if test "$tcl_cv_seh" = "no" ; then
-    AC_DEFINE(HAVE_NO_SEH,,
+    AC_DEFINE(HAVE_NO_SEH, 1,
             [Defined when mingw does not support SEH])
 fi
 
+#
+# Check to see if the excpt.h include file provided contains the
+# definition for EXCEPTION_DISPOSITION; if not, which is the case
+# with Cygwin's version as of 2002-04-10, define it to be int, 
+# sufficient for getting the current code to work.
+#
+AC_CACHE_CHECK(for EXCEPTION_DISPOSITION support in include files,
+    tcl_cv_eh_disposition,
+AC_TRY_COMPILE([
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#undef WIN32_LEAN_AND_MEAN
+],
+[
+  EXCEPTION_DISPOSITION x;
+],
+        tcl_cv_eh_disposition=yes,
+        tcl_cv_eh_disposition=no)
+)
+if test "$tcl_cv_eh_disposition" = "no" ; then
+    AC_DEFINE(EXCEPTION_DISPOSITION, int,
+            [Defined when cygwin/mingw does not support EXCEPTION DISPOSITION])
+fi
+
 #--------------------------------------------------------------------
 # Determines the correct binary file extension (.o, .obj, .exe etc.)
 #--------------------------------------------------------------------