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-rw-r--r--src/video_core/host_shaders/CMakeLists.txt20
1 files changed, 19 insertions, 1 deletions
diff --git a/src/video_core/host_shaders/CMakeLists.txt b/src/video_core/host_shaders/CMakeLists.txt
index 73f331d4c..28f2b8614 100644
--- a/src/video_core/host_shaders/CMakeLists.txt
+++ b/src/video_core/host_shaders/CMakeLists.txt
@@ -20,6 +20,7 @@ set(SHADER_FILES
find_program(GLSLANGVALIDATOR "glslangValidator" REQUIRED)
set(GLSL_FLAGS "")
+set(QUIET_FLAG "--quiet")
set(SHADER_INCLUDE ${CMAKE_CURRENT_BINARY_DIR}/include)
set(SHADER_DIR ${SHADER_INCLUDE}/video_core/host_shaders)
@@ -28,6 +29,23 @@ set(HOST_SHADERS_INCLUDE ${SHADER_INCLUDE} PARENT_SCOPE)
set(INPUT_FILE ${CMAKE_CURRENT_SOURCE_DIR}/source_shader.h.in)
set(HEADER_GENERATOR ${CMAKE_CURRENT_SOURCE_DIR}/StringShaderHeader.cmake)
+# Check if `--quiet` is available on host's glslangValidator version
+# glslangValidator prints to STDERR iff an unrecognized flag is passed to it
+execute_process(
+ COMMAND
+ ${GLSLANGVALIDATOR} ${QUIET_FLAG}
+ ERROR_VARIABLE
+ GLSLANG_ERROR
+ # STDOUT variable defined to silence unnecessary output during CMake configuration
+ OUTPUT_VARIABLE
+ GLSLANG_OUTPUT
+)
+
+if (NOT GLSLANG_ERROR STREQUAL "")
+ message(WARNING "Refusing to use unavailable flag `${QUIET_FLAG}` on `${GLSLANGVALIDATOR}`")
+ set(QUIET_FLAG "")
+endif()
+
foreach(FILENAME IN ITEMS ${SHADER_FILES})
string(REPLACE "." "_" SHADER_NAME ${FILENAME})
set(SOURCE_FILE ${CMAKE_CURRENT_SOURCE_DIR}/${FILENAME})
@@ -55,7 +73,7 @@ foreach(FILENAME IN ITEMS ${SHADER_FILES})
OUTPUT
${SPIRV_HEADER_FILE}
COMMAND
- ${GLSLANGVALIDATOR} -V --quiet ${GLSL_FLAGS} --variable-name ${SPIRV_VARIABLE_NAME} -o ${SPIRV_HEADER_FILE} ${SOURCE_FILE}
+ ${GLSLANGVALIDATOR} -V ${QUIET_FLAG} ${GLSL_FLAGS} --variable-name ${SPIRV_VARIABLE_NAME} -o ${SPIRV_HEADER_FILE} ${SOURCE_FILE}
MAIN_DEPENDENCY
${SOURCE_FILE}
)