The 3.8.2 version builds on EPEL6 if you use %setup instead of %autosetup and export LD_LIBRARY_PATH=. in %check -- I don't know why the difference for LD_LIBRARY_PATH. The 3.8.2 SRPM builds directly on EPEL7.
(This is for gmsh in EPEL.)
alglib-3.9.0-1.el6 has been submitted as an update for Fedora EPEL 6.
alglib-3.9.0-1.el7 has been submitted as an update for Fedora EPEL 7.
alglib-3.9.0-1.el6 has been pushed to the Fedora EPEL 6 testing repository.
*** Bug 1178295 has been marked as a duplicate of this bug. ***
alglib-3.9.0-1.el7 has been pushed to the Fedora EPEL 7 stable repository.
alglib-3.9.0-1.el6 has been pushed to the Fedora EPEL 6 stable repository.