Review Request 108701: Find libgfortran if it's installed in custom prefixes

[Christophe Giboudeaux]

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http://git.reviewboard.kde.org/r/108701/
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Review request for Build System and Albert Astals Cid.


Description
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FindR.cmake tries to find libgfortran when the R_lapack library is found. With the current file the detection fails on openSUSE.
libgfortran is not installed in a common directory but in /usr/lib64/gcc/<arch>/<compiler version>/

With this patch, FindR tries to find the gfortran executable and run 'gfortran-4.7 -print-file-name=libgfortran.so' to get the library path.

if the gfortran executable cannot be found, find_library(...) is used.


Diffs
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  cmake/FindR.cmake 11f4aff 

Diff: http://git.reviewboard.kde.org/r/108701/diff/


Testing
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Tested successfully with the 4.10 tarball.


Thanks,

Christophe Giboudeaux

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