With the sci-mathematics/glpk-4.7 ebuild the user manual files refman.* (as well as some other documentation files) get installed to the examples directory of the documentation. That seems wrong to me. In the source tree the manual is not in the examples directory. Furthermore, the ebuild could be updated to the most recent version 4.8 of glpk.
Created attachment 68839 [details] corrected ebuild and bump to glpk-4.8 The attached ebuild installs all docs into /usr/share/doc/glpk-4.8, whereas the examples now go into /usr/share/glpk-4.8/examples. I also bumped the version to 4.8 (not sure if I should have opened a new bug for this). Furthermore, the attached ebuild does not install all of examples/ as the current ebuild (since examples/ contains Makefiles, executables etc.) but only what looks like generic example files.
Thanks for reporting, Michael. Thanks for the new ebuild, Markus. This is now in CVS (with a few changes).