Separate Install paths and Macro paths #2079

Job	Run time
debian:unstable (CMake) (GNU)	3m 13s
fedora:rawhide (CMake) (GNU)	3m 36s
debian:12 (Latest Mapnik) (CMake) (GNU)	4m 17s
ubuntu:devel (CMake) (GNU)	3m 28s
macos-14 (Autotools) (LLVM)	6m 14s
ubuntu:24.04 (Latest Mapnik) (CMake) (GNU)	3m 51s
ubuntu:24.04 (Autotools) (GNU)	2m 34s
macos-14 (CMake) (LLVM)	9m 51s
ubuntu:24.04 (Autotools) (LLVM)	2m 26s
ubuntu:24.04 (CMake) (GNU)	3m 40s
ubuntu:24.04 (CMake) (LLVM)	3m 9s
freebsd14 (CMake) (LLVM)	8m 2s
	54m 21s

Provide feedback