try to find workaround for old automake

[libt2n] / example-codegen / TODO

multiple command groups test: howto multiplex multiple commands on one stream?
don't multiplex but a select on multiple groups would be nice

include problem:
- i don't see a solution using gccxml
- a simple solution would be to have a special include file containing the neccessary includes (or 2: one for the type definitions and one for the serialization)
- another solution would be to extract the includes from the file and add them to the generated code
both solutions only work if the include paths used during compilation of a program using the library are correct[tm]
now we use the first solution

- test using valgrind
- would be nice to reduce amount of changed files
  (codegen output is often the same as the existing files - something similar to ccache
  for codegen - but not overwriting output files if they are the same)
- howto include the part after "# always the same:" in all makefiles (using the codegenerator)
  (we now use make's include)
- lib name should be group name + suffix/prefix ?!
  user should have complete control => no default suffix/perfix
  headers should be installed in pkgincludedir? maybe yes on the other hand
  the user can pass the directory to configure via --includedir
- the example should not get installed (but still it should show how to build a lib that gets installed :-(
  (overwriting install: doesn't work)
  => perhaps split libt2n package into 3 packages?
	libt2n
	libt2n-example-codegen
	libt2n-example-libusage
- at the moment make dist from within a clean source will not work
  (this is related to the nodist problem / old automake version)
  this is caused by BUILT_SOURCES not working for make dist(check?)
  and the dependency generation

  distcheck -> dist -> distdir -> DISTFILES

  all -> all-redirect -> all-am -> Makefile -> BUILT_SOURCES => bene

  => how to add dependency on BUILT_SOURCES for dist?
  the real problem is that make dist should not depend on BUILT_SOURCES
  unfortunately we can't fix this as long as we use a old automake version
  (DISTFILES includes generated files we would like to mark as noinst)
- make clean / make distclean?! make clean geht beim zweiten mal nicht
  now it works?! why?!
  das ganze ist abhängig davon in welchem verzeichnis man ist?!
  das problem ist:
	BUILT_SOURCES -> generierte files -> codegen !
  (make clean in toplevel src dir -> codegen does not exist)

  => how to get rid off BUILT_SOURCES
     or how to get rid off dependency off clean and dist on BUILT_SOURCES files ?
     (the nodist problem)

  getting rid off BUILT_SOURCES would not suffice
  (explicit dependencies still would depend upon the files)
  => the real problem is the missing nodist

  => workaround for old automake version?
  a workaround would require us not to use _SOURCES but still be able to add object files
  to the libs/bins created
  looking at the generated Makefile this perhaps could be done via _OBJECTS
  
  nodist wurde mit automake 1.5 eingeführt (2001-08-23)
  
  what doesn't work:
  - make dist and make clean only work if you did a make all

  hmm Makefile should not depend on BUILT_SOURCES
	http://sources.redhat.com/ml/bug-automake/2000/msg00040.html