Compilation fails because CIRCE2 needs camlp4

[kilian]

Trying to update the trunk, compilation fails because circe2 needs the camlp4 preprocessor, which is not installed on my system. (It's not part of the ocaml package.)

No big deal, but this is a dependency on a new package which has to be properly documented. Or eliminated.

[kilian]

OK, after installing camlp4 this still fails with the output

make[3]: Entering directory `/scratch/build/whizard/gfortran/src/circe2/src'
ocamlopt.opt -pp camlp4 -inline 64  -o circe2_tool.cmx -c /afs/tp1.physik.uni-siegen.de/user/kilian/whizard/trunk/src/circe2/src/circe2_tool.ml
File "/afs/tp1.physik.uni-siegen.de/user/kilian/whizard/trunk/src/circe2/src/circe2_tool.ml", line 17, characters 0-4:
Parse error: entry [implem] is empty
File "/afs/tp1.physik.uni-siegen.de/user/kilian/whizard/trunk/src/circe2/src/circe2_tool.ml", line 1, characters 0-1:
Error: Preprocessor error
make[3]: *** [circe2_tool.cmx] Error 2
make[3]: Leaving directory `/scratch/build/whizard/gfortran/src/circe2/src'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/scratch/build/whizard/gfortran/src/circe2'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/scratch/build/whizard/gfortran/src'
make: *** [all-recursive] Error 1

Looks like the preprocessor should not be invoked on that one.

[Juergen Reuter]

Both issues solved in r3345-3347.