21029732 PKG_CONFIG_PATH should be included in CONFIGURE_ENV and BUILD_ENV
21029735 shared-macros should define service manifest and method macros
21093823 sample-manifest should omit or comment "standard" directories and certain files
21144358 configure scripts usually detect wrong host for 64-bit builds
21157847 shared-macros.mk instructions have a typo for studio c99 mode
22067225 common make-rules desired for simplifying makefiles
22067806 transforms needs expanding for desktop services