travis: Add libclang-9-dev package

Looks like package dependencies are broken. Adding libclang-9-dev manually to fix travis build.
KhronosGroup · May 24, 2019 · 54b49fa · 54b49fa
1 parent af28fa0
commit 54b49fa
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -26,6 +26,7 @@ addons:
     - llvm-9-dev
     - clang-format-9
     - clang-tidy-9
+    - libclang-9-dev
     - spirv-tools
 
 compiler: