[glslang] Export CMake package files (#5513)

* Add patch file to make glslang known to pkg-config

* Proper patch file

* Fix paths in the patch file

* Add missing space so patch file can apply

* Remove debug/share directory

* Export everything to the glslangConfig

* Export the SPIRV target as well

* Remove not-working patch for main CMake file

* [glslang] Remove call to windows CRT changing function

* [glslang] Remove unnecessary calls to install inside patch

* [glslang] Check cmake imports correctly

2 files changed, 139 insertions, 1 deletions

diff --git a/ports/glslang/CMakeLists-targets.patch b/ports/glslang/CMakeLists-targets.patch
new file mode 100644
index 000000000..73661fa35
--- /dev/null
+++ b/ports/glslang/CMakeLists-targets.patch
@@ -0,0 +1,133 @@
+diff --git a/ChooseMSVCCRT.cmake b/ChooseMSVCCRT.cmake
+index 2097881..f0cddd7 100644
+--- a/ChooseMSVCCRT.cmake
++++ b/ChooseMSVCCRT.cmake
+@@ -102,4 +102,4 @@ set(MSVC_CRT
+   MT
+   MTd)
+ 
+-choose_msvc_crt(MSVC_CRT)
++# choose_msvc_crt(MSVC_CRT)
+diff --git a/OGLCompilersDLL/CMakeLists.txt b/OGLCompilersDLL/CMakeLists.txt
+index 5bb3f0e..e7be6e6 100644
+--- a/OGLCompilersDLL/CMakeLists.txt
++++ b/OGLCompilersDLL/CMakeLists.txt
+@@ -9,6 +9,12 @@ if(WIN32)
+ endif(WIN32)
+ 
+ if(ENABLE_GLSLANG_INSTALL)
+-    install(TARGETS OGLCompiler
+-            ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
++    install(TARGETS OGLCompiler EXPORT glslangConfig
++            ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
++            LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
++    )
++    export(TARGETS OGLCompiler
++           NAMESPACE glslang::
++           FILE "${CMAKE_CURRENT_BINARY_DIR}/OGLCompiler-config.cmake"
++    )
+ endif(ENABLE_GLSLANG_INSTALL)
+diff --git a/SPIRV/CMakeLists.txt b/SPIRV/CMakeLists.txt
+index b682419..3a10f1a 100755
+--- a/SPIRV/CMakeLists.txt
++++ b/SPIRV/CMakeLists.txt
+@@ -64,8 +64,14 @@ if(WIN32)
+ endif(WIN32)
+ 
+ if(ENABLE_GLSLANG_INSTALL)
+-    install(TARGETS SPIRV SPVRemapper
+-            ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
++    install(TARGETS SPIRV EXPORT glslangConfig
++        ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
++        LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
++    )
++    export(TARGETS SPIRV
++        NAMESPACE glslang::
++        FILE "${CMAKE_CURRENT_BINARY_DIR}/glslang-config.cmake"
++    )
+ 
+     install(FILES ${HEADERS} ${SPVREMAP_HEADERS} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/SPIRV/)
+ endif(ENABLE_GLSLANG_INSTALL)
+diff --git a/glslang/CMakeLists.txt b/glslang/CMakeLists.txt
+index 7a50ab6..b70345e 100644
+--- a/glslang/CMakeLists.txt
++++ b/glslang/CMakeLists.txt
+@@ -97,8 +97,19 @@ if(WIN32)
+ endif(WIN32)
+ 
+ if(ENABLE_GLSLANG_INSTALL)
+-    install(TARGETS glslang
+-            ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
++    install(TARGETS glslang EXPORT glslangConfig
++            ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
++            LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
++    )
++    export(TARGETS glslang
++           NAMESPACE glslang::
++           FILE "${CMAKE_CURRENT_BINARY_DIR}/glslang-config.cmake"
++    )
++    install(
++        EXPORT glslangConfig
++        DESTINATION "${CMAKE_INSTALL_PREFIX}/share/glslang"
++        NAMESPACE glslang::
++    )
+ endif(ENABLE_GLSLANG_INSTALL)
+ 
+ if(ENABLE_GLSLANG_INSTALL)
+diff --git a/glslang/OSDependent/Unix/CMakeLists.txt b/glslang/OSDependent/Unix/CMakeLists.txt
+index 1bf49e1..edd733c 100644
+--- a/glslang/OSDependent/Unix/CMakeLists.txt
++++ b/glslang/OSDependent/Unix/CMakeLists.txt
+@@ -3,6 +3,12 @@ set_property(TARGET OSDependent PROPERTY FOLDER glslang)
+ set_property(TARGET OSDependent PROPERTY POSITION_INDEPENDENT_CODE ON)
+ 
+ if(ENABLE_GLSLANG_INSTALL)
+-    install(TARGETS OSDependent
+-            ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
++    install(TARGETS OSDependent EXPORT glslangConfig
++            ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
++            LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
++    )
++    export(TARGETS OSDependent
++           NAMESPACE glslang::
++           FILE "${CMAKE_CURRENT_BINARY_DIR}/OSDependent-config.cmake"
++    )
+ endif(ENABLE_GLSLANG_INSTALL)
+diff --git a/glslang/OSDependent/Windows/CMakeLists.txt b/glslang/OSDependent/Windows/CMakeLists.txt
+index f257418..cadd70d 100644
+--- a/glslang/OSDependent/Windows/CMakeLists.txt
++++ b/glslang/OSDependent/Windows/CMakeLists.txt
+@@ -15,6 +15,12 @@ if(WIN32)
+ endif(WIN32)
+ 
+ if(ENABLE_GLSLANG_INSTALL)
+-    install(TARGETS OSDependent
+-            ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
++    install(TARGETS OSDependent EXPORT glslangConfig
++            ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
++            LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
++    )
++    export(TARGETS OSDependent
++           NAMESPACE glslang::
++           FILE "${CMAKE_CURRENT_BINARY_DIR}/OSDependent-config.cmake"
++    )
+ endif(ENABLE_GLSLANG_INSTALL)
+diff --git a/hlsl/CMakeLists.txt b/hlsl/CMakeLists.txt
+index 98dfad7..94d96a0 100755
+--- a/hlsl/CMakeLists.txt
++++ b/hlsl/CMakeLists.txt
+@@ -26,6 +26,12 @@ if(WIN32)
+ endif(WIN32)
+ 
+ if(ENABLE_GLSLANG_INSTALL)
+-    install(TARGETS HLSL
+-            ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
++    install(TARGETS HLSL EXPORT glslangConfig
++            ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
++            LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
++    )
++    export(TARGETS HLSL
++           NAMESPACE glslang::
++           FILE "${CMAKE_CURRENT_BINARY_DIR}/HLSL-config.cmake"
++    )
+ endif(ENABLE_GLSLANG_INSTALL)
diff --git a/ports/glslang/portfile.cmake b/ports/glslang/portfile.cmake
index b7cbdb98e..f2ec0e3cd 100644
--- a/ports/glslang/portfile.cmake
+++ b/ports/glslang/portfile.cmake
@@ -8,12 +8,14 @@ vcpkg_from_github(
   REF b5b5f918c6b72d7cf2ee73641cc6c6ddb211ca70
   SHA512 ec0f7a23fa60457a481c7b3acf4c127c3bf898d23655d346aeafb304f74e798d632c83d676873f2c764d241de6dc4392cff8d6ce0ee509a4b74ee2233b01c008
   HEAD_REF master
+  PATCHES
+    CMakeLists-targets.patch
 )
 
 vcpkg_configure_cmake(
   SOURCE_PATH ${SOURCE_PATH}
   PREFER_NINJA
-  OPTIONS -DCMAKE_DEBUG_POSTFIX=d
+  OPTIONS -DCMAKE_DEBUG_POSTFIX=d -DSKIP_GLSLANG_INSTALL=OFF
 )
 
 vcpkg_install_cmake()
@@ -21,6 +23,9 @@ vcpkg_install_cmake()
 file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/include)
 file(RENAME "${CURRENT_PACKAGES_DIR}/bin" "${CURRENT_PACKAGES_DIR}/tools")
 file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/bin")
+file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/share")
 
 # Handle copyright
 file(COPY ${CMAKE_CURRENT_LIST_DIR}/copyright DESTINATION ${CURRENT_PACKAGES_DIR}/share/glslang)
+
+vcpkg_test_cmake(PACKAGE_NAME glslang)