There is a linker argument that only Apple's GCC recognizes in the latest build. In libs/wine/Makefile.in, there is a variable that reads: Code: DYLIB_LDFLAGS = -compatibility_version $(SOVERSION) -current_version $(VERSION) -headerpad_max_install_names in order for non-Apple GCC to successfully build, it needs to pass-through the argument to the linker. The line should read: Code: DYLIB_LDFLAGS = -compatibility_version $(SOVERSION) -current_version $(VERSION) -Wl,-headerpad_max_install_names