all: includes->incdir, libs->libdir, in local.conf sections
all: first stab at defining a hwaf-toolchain (c/c++/fortran)
python: honor with_python
base: introduce HWAF_DEBUG_RUNTIME
project-mgr: typo
project-mgr: add show-pkg-tree command
runtime: introduce a feature to automatically craft a correct os.environ from the ctx.env
runtime: typo
all: introduce and use hwaf_subst_vars
base: forgot one includes->incdir,libs->libdir