Description of problem: EL7 does not meet gcc/clang darktable 2.4 minimum requirements. Nicolas Chauvet suggested to use Red Hat developer toolset 7 [1] and to take as example Chromium package [2] [1]: https://access.redhat.com/documentation/en-us/red_hat_developer_toolset/7/html/user_guide/ [2]: https://src.fedoraproject.org/rpms/chromium/tree/epel7
*** This bug has been marked as a duplicate of bug 1538211 ***