Re: Cygwin g++ for 'make depend'

>  I guess it's due to filtering out -D__WXMSW__ from your CFLAGS above

I don't. Did you notice the *$(filter -%I -%D, $(CFLAGS))..*?. And I use 
*-FI./$(OBJ_DIR)/config.h* for *cl* and *clang-cl*
and I really saw no need to add *-D__WXMSW__* for those. But adding it 
seems to do no harm.
Hence my */$(OBJ_DIR)/**config.h* and *depend hack* is now:
  #define __WXMSW__        1
  #if defined(GCC_MAKE_DEPEND)
    #define _MSC_VER            1910
    #define _WX_CHKCONF_H_      1
    #define _WX_MSW_CHKCONF_H_  1
  #endif

mandag 12. februar 2024 kl. 13:19:50 UTC+1 skrev Vadim Zeitlin:

> On Mon, 12 Feb 2024 03:00:16 -0800 (PST) Gisle Vanem wrote:
>
> GV> In my a GNU-makefile (targeting MSVC), I sometimes use a Cygwin 'g++'
> GV> to create dependencies. Like:
> GV> DEP_CFLAGS = -MM $(filter -I% -D%, $(CFLAGS)) \
> GV> --include $(OBJ_DIR)/config.h \
> GV> -DGCC_MAKE_DEPEND
> GV> depend:
> GV> g++ $(DEP_CFLAGS) $(SOURCE) >> .depend.Windows
>
> Note that this is not going to work for anything conditionally-included
> depending on the compiler used.
>
> GV> But when a wxWidget headers notice a '__GNUC__' and/or '__CYGWIN__' is 
> GV> involved,
> GV> it goes bananas with huge amounts of '#error' statements. 
>
> I guess it's due to filtering out -D__WXMSW__ from your CFLAGS above, why
> do you do it?
>
> GV> So I just fake 'g++' into a MSVC-compiler in my generated
> GV> '$(OBJ_DIR)/config.h':
> GV> #if defined(GCC_MAKE_DEPEND)
> GV> #define _MSC_VER 1910
> GV> #define WX CHKCONF H 1
> GV> #define WX MSW CHKCONF H 1
> GV> #define __WXMSW__ 1
> GV> #endif
> GV> ....
> GV> --------------
> GV> 
> GV> Is there a better way?
>
> You could predefine the same symbols on command line, but it's still a
> dirty hack, of course.
>
> Regards,
> VZ
>
> -- 
> TT-Solutions: wxWidgets consultancy and technical support
> https://www.tt-solutions.com/
>

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