1 files changed, 61 insertions, 0 deletions
diff --git a/graphics/glslang/SPIRV-Tools-shared.patch b/graphics/glslang/SPIRV-Tools-shared.patch
new file mode 100644
index 0000000000000..34cb8ad9bc1ec
--- /dev/null
+++ b/graphics/glslang/SPIRV-Tools-shared.patch
@@ -0,0 +1,61 @@
+From 1504af077935a0bfd1b1b59f77d8b1cd89f913b5 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?R=C3=A9mi=20Verschelde?= <rverschelde@gmail.com>
+Date: Mon, 10 Dec 2018 13:05:15 +0100
+Subject: [PATCH] CMake: Allow linking against system-installed SPIRV-Tools
+
+Fixes #1585.
+---
+ CMakeLists.txt       |  7 ++++++-
+ SPIRV/CMakeLists.txt | 21 +++++++++++++--------
+ 2 files changed, 19 insertions(+), 9 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index ada2b8fb9..22243f491 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -320,7 +320,12 @@ if(BUILD_EXTERNAL AND IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/External)
+     add_subdirectory(External)
+ endif()
+ 
+-if(NOT TARGET SPIRV-Tools-opt)
++find_package(PkgConfig)
++if(PkgConfig_FOUND)
++    pkg_check_modules(SPIRV-Tools SPIRV-Tools)
++endif()
++# Former would be system-installed, later is from External
++if(NOT SPIRV-Tools_FOUND AND NOT TARGET SPIRV-Tools-opt)
+     set(ENABLE_OPT OFF)
+ endif()
+ 
+diff --git a/SPIRV/CMakeLists.txt b/SPIRV/CMakeLists.txt
+index d699daddb..28beb47bb 100644
+--- a/SPIRV/CMakeLists.txt
++++ b/SPIRV/CMakeLists.txt
+@@ -91,14 +91,19 @@ if(WIN32 AND BUILD_SHARED_LIBS)
+ endif()
+ 
+ if(ENABLE_OPT)
+-    target_include_directories(SPIRV
+-        PRIVATE ${spirv-tools_SOURCE_DIR}/include
+-        PRIVATE ${spirv-tools_SOURCE_DIR}/source
+-    )
+-    target_link_libraries(SPIRV PRIVATE MachineIndependent SPIRV-Tools-opt)
+-    target_include_directories(SPIRV PUBLIC
+-        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../External>
+-        $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/External>)
++    if(SPIRV-Tools_FOUND)
++        target_include_directories(SPIRV PUBLIC ${SPIRV-Tools_INCLUDEDIR})
++        target_link_libraries(SPIRV glslang ${SPIRV-Tools_LIBRARIES})
++    else()
++        target_include_directories(SPIRV
++            PRIVATE ${spirv-tools_SOURCE_DIR}/include
++            PRIVATE ${spirv-tools_SOURCE_DIR}/source
++        )
++        target_link_libraries(SPIRV PRIVATE MachineIndependent SPIRV-Tools-opt)
++        target_include_directories(SPIRV PUBLIC
++            $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../External>
++            $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/External>)
++    endif()
+ else()
+     target_link_libraries(SPIRV PRIVATE MachineIndependent)
+ endif(ENABLE_OPT)