From:	groma AT everx DOT szbk DOT u-szeged DOT hu ("Geza Groma")
Subject:	Re: looking for TCL-TK gnu compiled
27 Jan 1997 09:13:26 -0800 :
Approved:	cygnus DOT gnu-win32 AT cygnus DOT com
Distribution:	cygnus
Message-ID:	<85EEE065F.cygnus.gnu-win32@everx.szbk.u-szeged.hu>
Mime-Version:	1.0
Original-To:	gnu-win32 AT cygnus DOT com, Fabrice Beauvir <fabeau AT hexale DOT fdn DOT fr>
Original-Cc:	colin AT bird DOT fu DOT is DOT saga-u DOT ac DOT jp
X-Mailer:	Pegasus Mail for Windows (v2.33)
Original-Sender:	owner-gnu-win32 AT cygnus DOT com

>  I am looking for a GNU -win32 compiled version of TCL-TK 8.0 or makefile(s)

Well, the DLL files precompiled by SUN do not work with cygwin (and 
also not with MSVC!).

I just tried to build tcl8.0 (not yet tk) with gnu-win32. Here is the list of problems/patches
found during the compilation phase:

1. The most serious problem is the following piece of code in  tclWinFCmd.c:

    try {
	if (MoveFile(src, dst) != FALSE) {
	    return TCL_OK;
	}
    } except (-1) {}

Try is a C++ keyword. Some compilers (Borland, MSVC, Symantec)  supports
try or __try even in simple C, but GCC apparently does not. Compiling 
with the -xc++ flag eliminates this problem, but brings up a lot of new errors 
(even in the header files).
Any idea how to deal with this?

2. Since no io.h exists in the original cygwin distribution I used 
the mingw32 package with compiler options:

 -O -DFAR= -Denviron=_environ -Dhypot=_hypot

3. No winsock.h, winarg.h, winnt.h and winbase.h in mingwin32. Use 
windows.h  instead of them (also causing less pain with  redefinitions).

4. As pointed out by Colin Peters in section Gotchas and Surprises of 
mingw32, the Berkley-type error message are redefined in Sockets.h, so the 
corresponding block should be commented out.

5. _hypot is not declared in math.h although CRTDLL supports it. Is there any
particular reason to omit that?

6. Declaration of struct exception and definition of DOMAIN and SING  
should be copied to math.h of mingwin32 from math.h of tcygwin . 
(tclWinMtherr.c supplies its own version of _matherr)

7. Dos.h does not exist. tclWinPipe.c needs IMAGE_DOS_HEADER and 
IMAGE_DOS_SIGNATURE from that. I found them declared in winnt.h of 
Microsoft but _not_ in the cygwin32 or mingwin32 distribution.

8. Two errors found in tclWinSock.c I have not yet time to analyze:

    winSock.accept = (SOCKET (PASCAL FAR *)(SOCKET s,
            struct sockaddr FAR *addr, int FAR *addrlen))
        GetProcAddress(handle, "accept");

../../win/tclWinSock.c:261: warning: `__stdcall__' attribute directive 
ignored
../../win/tclWinSock.c:263: `type name' declared as function returning 
a function
../../win/tclWinSock.c:263: cast specifies function type

    socketWindow = CreateWindowEx(0, (LPCTSTR)socketClass, "TclSocket",
	    WS_OVERLAPPED, 0, 0, 0, 0, NULL, NULL,
	    TclWinGetTclInstance(), NULL);

../../win/tclWinSock.c:398: warning: cast to pointer from integer of different size

9. _timezone, _tzname and _daylight are not declared in any header file.


Geza Groma
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