mingw-w64 cross compiling

[Ian Lance Taylor]

On Tue, Sep 18, 2012 at 1:17 AM, niXman <i.nixman@gmail.com> wrote:
> 2012/9/18 Christer Solskogen:
>
>> The patch fixed that, but now I've got a new one.
>>
>> make[3]: Entering directory
>> `/home/solskogen/obj/_build/gcc.native.x86_64-w64-mingw32/libbacktrace'
>> /bin/sh ./libtool --tag=CC   --mode=compile x86_64-w64-mingw32-gcc
>> -DHAVE_CONFIG_H -I. -I/home/solskogen/mingw-w64-builder/gcc/libbacktrace
>> -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes
>> -Wold-style-definition -Wmissing-format-attribute -Wcast-qual -Werror -I
>> /home/solskogen/mingw-w64-builder/gcc/libbacktrace/../include -I ../libgcc
>> -O2 -pipe -march=corei7 -D__USE_MINGW_ACCESS -MT posix.lo -MD -MP -MF
>> .deps/posix.Tpo -c -o posix.lo
>> /home/solskogen/mingw-w64-builder/gcc/libbacktrace/posix.c
>> libtool: compile:  x86_64-w64-mingw32-gcc -DHAVE_CONFIG_H -I.
>> -I/home/solskogen/mingw-w64-builder/gcc/libbacktrace -W -Wall
>> -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes
>> -Wold-style-definition -Wmissing-format-attribute -Wcast-qual -Werror -I
>> /home/solskogen/mingw-w64-builder/gcc/libbacktrace/../include -I ../libgcc
>> -O2 -pipe -march=corei7 -D__USE_MINGW_ACCESS -MT posix.lo -MD -MP -MF
>> .deps/posix.Tpo -c
>> /home/solskogen/mingw-w64-builder/gcc/libbacktrace/posix.c -o posix.o
>> /home/solskogen/mingw-w64-builder/gcc/libbacktrace/posix.c: In function
>> 'backtrace_open':
>> /home/solskogen/mingw-w64-builder/gcc/libbacktrace/posix.c:71:3: error:
>> implicit declaration of function 'fcntl'
>> [-Werror=implicit-function-declaration]
>>    fcntl (descriptor, F_SETFD, FD_CLOEXEC);
>>    ^
>
> Today when trying to build trunk, I encountered this error. But has
> not yet figured out how to fix it...

I just committed a patch that should fix that problem.

If there are other problems building libbacktrace, let me know.

Ian