build: Avoid redundant spirv-tools/hdrs builds
authorMark Lobodzinski <mark@lunarg.com>
Thu, 16 Nov 2017 20:23:05 +0000 (13:23 -0700)
committerMark Lobodzinski <mark@lunarg.com>
Tue, 21 Nov 2017 23:38:20 +0000 (16:38 -0700)
commit255a421b925b115010458d7a8527289d47fd0169
treee2e59d62ab10a0bd9d6c56d82e8e897486871aa2
parent492d3381379af4078d428559b4582569cb30aad5
build: Avoid redundant spirv-tools/hdrs builds

Changed update_external_sources scripts to use spirv-tools and
spirv-headers already present in the glslang repo instead of
fetching and building separate versions.

Change-Id: Iff9666f1939d814d0888b2da9b9e7450af697722
CMakeLists.txt
update_external_sources.bat
update_external_sources.sh