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Re: Preprocessor defines in MS-Windows build
From: |
Stefan Monnier |
Subject: |
Re: Preprocessor defines in MS-Windows build |
Date: |
Sat, 07 Jun 2008 15:04:21 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux) |
> Here's an example of a typical compilation command line on Windows:
> gcc -I. -DWIN32_LEAN_AND_MEAN -D_WIN32_WINNT=0x0400 -D_X86_=1 -c -gstabs+
> -g3 -mtune=pentium4 -O2 -Di386 -D_CRTAPI1=_cdecl -Demacs=1 -DWINDOWSNT
> -DDOS_NT -DHAVE_CONFIG_H -I../nt/inc -D_UCHAR_T -DHAVE_NTGUI=1
> -DUSE_CRT_DLL=1 -o oo-spd/i386/dispnew.o dispnew.c
> This uses a lot -f -DSOMETHING switches, and it looks like most of
Similar issues show on other platforms. I recently made minro changes
to remove on or the other of those defines and move it into
src/config.h instead.
> these are not needed, and almost all the rest can be put on
> src/s/ms-w32.h.
Ideally src/config.h, no (tho maybe it's more difficult)?
> Can someone help understanding the purpose of each switch?
> Below I summarize what I gleaned from grepping fo each symbol in the
> Emacs sources and in the system headers:
Look at admin/CPP-DEFINES as well (and update/improve it whenever
possible, of course).
> HAVE_NTGUI -- can be replaced with WINDOWSNT, since the W32
> build doesn't use any other GUI
Don't we support W32 builds without GUI?
> Does someone know anything that contradicts the above? If not, I
> think we should remove those defines that are not needed anymore, and
> put those which are needed in ms-w32.h.
Sounds fine to me,
Stefan
Re: Preprocessor defines in MS-Windows build, Juanma Barranquero, 2008/06/26