neovim/neovim — pull request #1654 by gaurdro (2014-12-12 18:10:54+00:00)
Title: [RFC] Fix issue 1569: Build fails in rpmbuild environment

Detect if there's a prefix to -D_FORTIFY_SOURCE defined in CFLAGS and propagate that prefix to the flags added to redefine _FORTIFY_SOURCE. Addresses issue [#1569](https://github.com/neovim/neovim/issues/1569)