Merge branch 'fix-glslc-mandatory-detection' into 'master'

Make glslc program really required when Vulkan is used

See merge request solverstack/vite!37

src/CMakeLists.txt

@@ -548,7 +548,7 @@ ENDIF (VITE_ENABLE_TAU)
 
 IF (USE_VULKAN)
   #Compile shader for Vulkan
-  find_program(GLSLC glslc required)
+  find_program(GLSLC glslc REQUIRED)
   add_custom_command(TARGET vite POST_BUILD
     COMMAND ${GLSLC} ${CMAKE_SOURCE_DIR}/src/render/vulkan/vulkanshader.vert -o color_vert.spv
     COMMAND ${GLSLC} ${CMAKE_SOURCE_DIR}/src/render/vulkan/vulkanshader.frag -o color_frag.spv