* refactor configure.ac to have distinct sections to configure each
subsystem.
* Dedicated LUMIERA_<subsys>_CFLAGS|_LIBS vars
* Fix Makefile.am's to use them, remove unnecessary dependencies
Stray dependencies to be refacored:
* tests/Makefile.am has dependencies on proc and backend
- should be moved to tests/library/Makefile.am etc anyways
* tests/lib/Makefile.am has dependency on GUI left
* src/tool/Makefile.am links GUI stuff generally, thats ok
* one threading test is broken, we don't care, merging new threadpool in
next.
This exports the 'configuration' system as interface. It is not finally
settled if the filenames shall be *_interface.{c,h} and some details might
be sorted out (so far it works quite well).
This can also serve as example how to implement a slightly more complex
interface (some functions got inline wraped because we dont want to export
internal config system state).
* fixed include paths
* lots of build system fixes
* initialization, shutdown, state and nobug flags are factored out into
a liblumierainit.a to simplify test builds
This starts the proposed changes in
http://www.pipapo.org/pipawiki/Lumiera/DesignProcess/ApplicationStructure
* Moving all necessary files from src/backend to src/lumiera
* create a small helloworld main app
* setup the buildsystem to build it all
* fix include paths at many places
The testsuite is not yet fixed here, that will be the next commit
