Test application for the EXTERNAL_PKG_DIRS feature of the buildsystem. Two external packages are provided in external_pkgs/: external_pkg and external_pkg_not_used. If the first package is not properly included, a define from CFLAGS is missing and a precompiler error is triggered. If the second package somehow ends up included it triggers a makefile error.

Usage

Set EXTERNAL_PKG_DIRS inside Makefile to point to other paths where the buildsystem can look for packages. Similar functionality to EXTERNAL_PKG_DIRS. Be careful to not name these externally provided packages the same as existing packages in $(RIOTBASE)/pkg/.