Fix for build on Linux #2
diff --git a/.travis.yml b/.travis.yml
index eeaeae9..1e6b4af 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,8 +15,8 @@
   - sudo apt-get install 

 

 install:

-  - wget https://github.com/premake/premake-core/releases/download/v5.0.0-alpha11/premake-5.0.0-alpha11-linux.tar.gz -O premake-5.0.0-alpha11-linux.tar.gz

-  - tar -xzvf premake-5.0.0-alpha11-linux.tar.gz

+  - wget https://github.com/premake/premake-core/releases/download/v5.0.0-alpha15/premake-5.0.0-alpha15-linux.tar.gz -O premake-5.0.0-alpha15-linux.tar.gz

+  - tar -xzvf premake-5.0.0-alpha15-linux.tar.gz

   - sudo apt-get -qq update

   - sudo apt-get install -y libassimp-dev libglm-dev graphviz libxcb-dri3-0 libxcb-present0 libpciaccess0 cmake libpng-dev libxcb-dri3-dev libx11-dev libx11-xcb-dev libmirclient-dev libwayland-dev libxrandr-dev

   - export VK_VERSION=1.2.131.1