OpenEmu Core plugin for UME
You must build the libmame_x64.a static library before building the MAME Game core, outlined in the following steps.
Step 1: Apply patch
cd mame
git apply ../lib/mame.patch
Step 2: Build mame
The following commands will build all the MAME object files. Ignore the final link error, which is only to build the executable – we don't use the midi support.
cd mame
make -j 4 macosx_x64_clang SUBTARGET=arcade NOWERROR=1
Step 3: Build libmame_x64.a
cd ../lib
make SUBTARGET=arcade