Plain old make will work. The older style would have a separate target for each platform that is supported. The newer style is more like how the Linux kernel bu

Plain old make will work. The older style would have a separate target for each platform that is supported. The newer style is more like how the Linux kernel build system works, with += operators in the Makefile to add options and put things in lists. Last time I used it, I found libtool to be a real mess. It had shell scripts pretending to be object files. That is simply not acceptable. There were way too many layers of gunk, making it difficult to have good control over what was being created.