glibmm versions

[p sun fun gmail com]

Hi,
Could you please clarify the following. I am trying to compile
libgdamm. It requires glibmm-2.56 >= 2.45.31. What does it mean? There
is a branch 2.56 which corresponds to glibmm-2.4. How to get glibmm-
2.56? master corresponds to glibmm-2.58. I already filed bug against
jhbuild but I am ready to compile glibmm manually. 

Thanks.



configure: error: Package requirements (glibmm-2.56 >= 2.45.31 libgda-
6.0 >= 5.0.2) were not met:

No package 'glibmm-2.56' found