Allow CMake files for dependencies to be included multiple times (#639)
authorTim Haines <thaines.astro@gmail.com>
Sat, 7 Sep 2019 21:54:47 +0000 (16:54 -0500)
committerGitHub <noreply@github.com>
Sat, 7 Sep 2019 21:54:47 +0000 (16:54 -0500)
commitb69554bd2c70260298d609af95bb2f3a43a9893a
tree6e7a3d8d49b6c4644266dd008aacfdba948660da
parenta7d412137271bf0bd545151675c81d6f1b9be0c1
Allow CMake files for dependencies to be included multiple times (#639)

Previously, multiple inclusions would result in the library being looked
up or downloaded/built multiple times. This ensures these actions happen
only once.
cmake/Boost.cmake
cmake/ElfUtils.cmake
cmake/LibIberty.cmake
cmake/ThreadingBuildingBlocks.cmake