MACHO_COMPATIBILITY_VERSIONΒΆ
What compatibility version number is this target for Mach-O binaries.
For shared libraries on Mach-O systems (e.g. macOS, iOS)
the MACHO_COMPATIBILITY_VERSION property correspond to
compatibility version and MACHO_CURRENT_VERSION to
current version.
See the FRAMEWORK target property for an example.
Versions of Mach-O binaries may be checked with the otool -L <binary>
command. If MACHO_COMPATIBILITY_VERSION is not set, the value of
the SOVERSION property will be used.