Hadrien G 1a385a5178 root: Fix root+x breakage from #11129 (#14224) ... * Fix root+x breakage from #11129 * Separate out +opengl breakage * Not strictly X11-related, but more breakage from #11129 * Another X11 breakage found while building 6.08.x * Don't put system headers in SPACK_INCLUDE_DIRS + deduplicate * xextproto is only a dependency in +x builds		2020-01-23 11:42:25 -06:00
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spack	root: Fix root+x breakage from #11129 (#14224)	2020-01-23 11:42:25 -06:00