Re: [AD] Problem Building 4.9 SVN

["Michael Swiger" <mokkan@xxxxxxxxxx>]

That fixed it, thanks.

On Sat, Oct 25, 2008 at 8:28 PM, Peter Wang <novalazy@xxxxxxxxxx> wrote:
> On 2008-10-25, Michael Swiger <mokkan@xxxxxxxxxx> wrote:
>> Today, I checked out a fresh copy of 4.9 from the SVN repository and
>> tried to build it. My environment is Windows XP Pro, and my compiler
>> is an unofficial build of MinGW (gcc 4.3.2-tdm-1). It gave me the
>> following:
>>
>> [ 23%] Building C object CMakeFiles/allegro_shared.dir/src/win/wgl_disp.c.obj
>> Linking CXX shared library lib\liballegro-4.9.6.dll
>> Creating library file: lib\liballegro-4.9.6.dll.a
>> Warning: .drectve `/DEFAULTLIB:"uuid.lib" /DEFAULTLIB:"uuid.lib" ' unrecognized
>> Warning: .drectve `/DEFAULTLIB:"uuid.lib" /DEFAULTLIB:"uuid.lib" ' unrecognized
>> Warning: .drectve `/DEFAULTLIB:"uuid.lib" /DEFAULTLIB:"uuid.lib" ' unrecognized
>> Warning: .drectve `/DEFAULTLIB:"uuid.lib" /DEFAULTLIB:"uuid.lib" ' unrecognized
>> CMakeFiles\allegro_shared.dir\src\events.c.obj:events.c:(.text+0x2a): undefined
>> reference to `___sync_sub_and_fetch_4'
>> CMakeFiles\allegro_shared.dir\src\inline.c.obj:inline.c:(.text+0x116): undefined
>>  reference to `___sync_sub_and_fetch_4'
>> CMakeFiles\allegro_shared.dir\src\inline.c.obj:inline.c:(.text+0x12a): undefined
>>  reference to `___sync_fetch_and_add_4'
>> collect2: ld returned 1 exit status
>> mingw32-make[2]: *** [lib/liballegro-4.9.6.dll] Error 1
>> mingw32-make[1]: *** [CMakeFiles/allegro_shared.dir/all] Error 2
>> mingw32-make: *** [all] Error 2
>>
>> Anyone know what's going on? 4.9 built for me just fine a few weeks ago...
>
> Has anyone else tried 4.9 with mingw gcc 4.1+ recently?  Then __sync_*
> builtins were introduced with gcc 4.1 but I don't know if they're
> supported on mingw (I assumed they were).
>
> Meanwhile, you can change line 4 of
> include/allegro5/internal/aintern_atomicops.h to (untested):
>
> #if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)) && !defined(ALLEGRO_MINGW32)
>
> Peter
>
>
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