Хотелось установить libgfortran4.7-devel, не удаляя libgfortran4.6-devel, так как последний нужен для libhdf5-devel

Однако
$ sudo apt-get install libgfortran4.7-devel
Reading Package Lists... Done
Building Dependency Tree... Done
The following extra packages will be installed:
  libquadmath4.7-devel
The following NEW packages will be installed:
  libgfortran4.7-devel libquadmath4.7-devel
0 upgraded, 2 newly installed, 0 removed and 0 not upgraded.
Need to get 0B/60.0kB of archives.
After unpacking 51.8kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Committing changes...
Preparing...                        ################################################################################################### [100%]
file /usr/share/info/libquadmath.info.bz2 from install of libquadmath4.7-devel-4.7.2-alt2 conflicts with file from package libquadmath4.6-devel-4.6.3-alt8
E: Error while running transaction

Можно, конечно, временно отказаться от 4.7, но не хочется...