Squashed 'libs/EXTERNAL/libezgl/' changes from fdc2113c2..6fb7c27cd
6fb7c27cd Merge pull request #9 from kmurray/non_root_build_fix
86fbdbbd6 Merge pull request #10 from kmurray/bump_example_cmake_version
a04d2c877 Bump CMake version for example program
19b2118c8 Fix non-root project variable condition
59ad0ff1a Merge pull request #8 from kmurray/non_primary_project_build
b9a057bab Merge pull request #7 from kmurray/system_includes
98fe682f1 Merge pull request #6 from kmurray/bump_cmake_version
a65dd9fd8 Do not build examples by default if EZGL is non-root cmake project
77cbb92e5 Treat GTK/X11 as system includes
4376ef214 Bump CMake version to 3.9
git-subtree-dir: libs/EXTERNAL/libezgl
git-subtree-split: 6fb7c27cd681869744e84745bca21dcb02f6f4b3
3 files changed
