Qt 5 Mac: Building x86 on x64 Mac not possible?

stephenju

I tried to build x86 version of Qt 5 on a x64 Mac by specifying the old -arch x86 configure option. It turned out to be completely ignored and the resulting libraries are still in x64.

Before I try another half-day build session, does anyone know how to build 32-bit Qt 5 on a 64-bit Mac? Or it's no longer supported? Thanks.

stephenju

BTW. make confclean no longer work either. It's quite hard to change configure options now...

steno

Did you ever figure out how to do this?

stephenju

In fact I did. You need to add

@-platform macx-clang-32@

to your configure option. I am actually using

@-platform macx-clang-libc++-32@

since I need to link against libc++.

jthomps

Hi, thanks for your post, I was able to build both macx-clang and macx-clang-32 successfully (using different -prefix configure options).

Prior to qt5, I was able to specify -arch x86 and -arch x86_64 in the same configure step and the resulting Qt libraries were both 32-bit and 64-bit compatible. I attempted to specify the -platform option twice, but Qt5 only builds the last platform specified on the configure command.

Does anyone know of a method to build Qt5 32-bit and 64-bit so that the resulting libraries support both?

Thanks,

Jeff