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

[Jonathan Kew]

On 28/8/12 07:56, Adam Twardoch (List) wrote:
> Behdad,
>
> I wonder if you could make the building process of HarfBuzz easier so
> that it builds on multiple architectures out of the box, without manual
> "lipo" tricks?
>
> 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...

JK