[phobos] 64 & 32 bit libraries for OSX

Michel Fortin michel.fortin at michelf.com
Tue Nov 8 20:31:44 PST 2011

Le 2011-11-08 à 22:19, Michel Fortin a écrit :

> Le 2011-11-08 à 20:45, Walter Bright a écrit :
>> On Linux, the 64 bit and 32 bit libraries exist along separate paths, and we put both paths on the command to the linker:
>> DFLAGS=-I%@P%/../../src/phobos -I%@P%/../../src/druntime/import -L-L%@P%/../lib32 -L-L%@P%/../lib64
>> -L--no-warn-search-mismatch -L--export-dynamic
>> However, attempting to do this on OSX fails (using -L-no_arch_warnings instead of -L--no-warn-search-mismatch). It apparently always tries to link in the first library found, not the first one with matching architecture.
>> What is the right way on OSX to do a dual-architecture library?
> Fuse both architectures into one "fat" file using lipo:
> 	lipo lib32/libphobos.a lib64/libphobos.a -create -output lib/libphobos.a

Also, you should do the same for the compiler binary file, assuming you release a 64-bit version of the compiler too. Instead of having separate 32 and 64 bit executables in separate folders, merge them into one using lipo.

Michel Fortin
michel.fortin at michelf.com

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