I’m trying to create a makefile that will work on OSX, but I don’t know what style of conditional statement to use. (I don’t have access to a Mac).

Does the version of make installed with xcode on OSX use conditional statements like ifeq ($(OS), Darwin) or does it use conditional statements like .if ${OS} == "Darwin"?

Have all versions of xcode always used the same flavour of make or has it changed in more recent versions?

Thank you