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Re: Failure building ctags with MinGW.
From: |
Óscar Fuentes |
Subject: |
Re: Failure building ctags with MinGW. |
Date: |
Fri, 18 Dec 2009 16:24:36 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.1.90 (gnu/linux) |
Eli Zaretskii <address@hidden> writes:
>> From: Óscar_Fuentes <address@hidden>
>> Date: Thu, 17 Dec 2009 22:18:11 +0100
>>
>> The build was picking GNUWin32's regex.h. Removing it and rebuilding
>> solved the problem.
>
> Which package did that regex.h come from? Perhaps we should add
> something to PROBLEMS.
The package is regex. That machine contains a full GNUWin32 install,
comprising all packages.
> Hmm... actually, that's strange: shouldn't GCC find src/regex.h
> _before_ it looks in your system include directory? Adding -v to the
> compilation command in lib-src shows that it should:
>
> #include "..." search starts here:
> #include <...> search starts here:
> .
> ../nt/inc
> ../src
> D:/usr/bin/../lib/gcc/mingw32/3.4.2/../../../../include
> D:/usr/bin/../lib/gcc/mingw32/3.4.2/include
> End of search list.
>
> Could you please look into this and see why it didn't work for you, or
> tell what am I missing?
The problem is that the build was configured with
--cflags -Ic:/apps/gnuwin32/include --ldflags -Lc:/gnuwin32/lib
(for adding graphics support.) With this settings, the include search
path sequence becomes
#include "..." search starts here:
#include <...> search starts here:
.
c:/apps/gnuwin32/include
../nt/inc
../src
c:\apps\msys\1.0\mingw\bin\../lib/gcc/mingw32/4.4.0/../../../../include
c:\apps\msys\1.0\mingw\bin\../lib/gcc/mingw32/4.4.0/include
c:\apps\msys\1.0\mingw\bin\../lib/gcc/mingw32/4.4.0/include-fixed
c:\apps\msys\1.0\mingw\bin\../lib/gcc/mingw32/4.4.0/../../../../mingw32/include
End of search list.
so it picks regex.h from gnuwin32 include directory.
I had to remove gnuwin32's unistd.h too, because it contains
#include <process.h>
which reads Emacs' src/process.h, which in turn includes unistd.h,
entering a recursive inclusion.
--
Óscar