[HarfBuzz] Building for multiple archs on Mac OS X (-arch i386 -arch x86_64)

[Behdad Esfahbod]

On 08/28/2012 03:28 AM, Jonathan Kew wrote:
> On 28/8/12 07:56, Adam Twardoch (List) wrote:
>>
>> When I try to do the "standard thing" on Mac OS X (using harfbuzz
>> 0.9.3), which is run ./configure like that:
>>
>> CFLAGS=" -Os -arch i386 -arch x86_64" CPPFLAGS=" -Os -arch i386 -arch
>> x86_64" CXXFLAGS=" -Os -arch i386 -arch x86_64" ./configure
>>
>> I get:
>>
>> checking how to run the C preprocessor... /lib/cpp
>> configure: error: in
>> `/Volumes/GuildensternHD2/adam/Dropbox/adam/Documents/FontLab/_Ins_OSS/harfbuzz/harfbuzz-0.9.3':
>>
>> configure: error: C preprocessor "/lib/cpp" fails sanity check
>> See `config.log' for more details
> 
> FWIW, if you remove the CPPFLAGS setting and just specify CFLAGS and CXXFLAGS,
> then configure runs successfully.
> 
> However, gcc then complains at compile time:
> 
> g++-4.2: -E, -S, -save-temps and -M options are not allowed with multiple
> -arch flags
> 
> So that didn't get us very much further...

This gets it all compiled:

./configure CFLAGS="-arch i386 -arch x86_64" CXXFLAGS="-arch i386 -arch
x86_64" --disable-dependency-tracking

So, while it's all Chinese to me, I hope this helps others...

behdad