Merge pull request #3061 from ShabbyX/remove-angle-build-flag
[platform/upstream/glslang.git] / CMakeLists.txt
index 3d66e2b..b581c84 100644 (file)
 
 # increase to 3.1 once all major distributions
 # include a version of CMake >= 3.1
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.14.0)
 if (POLICY CMP0048)
   cmake_policy(SET CMP0048 NEW)
 endif()
+if(POLICY CMP0054)
+  cmake_policy(SET CMP0054 NEW)
+endif()
+
+project(glslang LANGUAGES CXX)
+
 set_property(GLOBAL PROPERTY USE_FOLDERS ON)
 
 # Enable compile commands database
@@ -44,6 +50,7 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 # Adhere to GNU filesystem layout conventions
 include(GNUInstallDirs)
+include(CMakePackageConfigHelpers)
 
 # Needed for CMAKE_DEPENDENT_OPTION macro
 include(CMakeDependentOption)
@@ -57,6 +64,14 @@ if(BUILD_SHARED_LIBS)
     set(LIB_TYPE SHARED)
 endif()
 
+if ("${CMAKE_BUILD_TYPE}" STREQUAL "")
+    # This logic inside SPIRV-Tools, which can upset build target dependencies
+    # if changed after targets are already defined. To prevent these issues,
+    # ensure CMAKE_BUILD_TYPE is assigned early and at the glslang root scope.
+    message(STATUS "No build type selected, default to Debug")
+    set(CMAKE_BUILD_TYPE "Debug")
+endif()
+
 option(SKIP_GLSLANG_INSTALL "Skip installation" ${SKIP_GLSLANG_INSTALL})
 if(NOT ${SKIP_GLSLANG_INSTALL})
   set(ENABLE_GLSLANG_INSTALL ON)
@@ -92,10 +107,17 @@ CMAKE_DEPENDENT_OPTION(ENABLE_HLSL
 option(ENABLE_RTTI "Enables RTTI" OFF)
 option(ENABLE_EXCEPTIONS "Enables Exceptions" OFF)
 option(ENABLE_OPT "Enables spirv-opt capability if present" ON)
-option(ENABLE_PCH "Enables Precompiled header" ON)
+
+if(MINGW OR (CMAKE_SYSTEM_NAME STREQUAL "Darwin" AND ${CMAKE_CXX_COMPILER_ID} MATCHES "GNU"))
+    # Workaround for CMake behavior on Mac OS with gcc, cmake generates -Xarch_* arguments
+    # which gcc rejects
+    option(ENABLE_PCH "Enables Precompiled header" OFF)
+else()
+    option(ENABLE_PCH "Enables Precompiled header" ON)
+endif()
 option(ENABLE_CTEST "Enables testing" ON)
 
-if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT AND WIN32)
+if(ENABLE_GLSLANG_INSTALL AND CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT AND WIN32)
     set(CMAKE_INSTALL_PREFIX "install" CACHE STRING "..." FORCE)
 endif()
 
@@ -104,49 +126,36 @@ if(USE_CCACHE)
     find_program(CCACHE_FOUND ccache)
     if(CCACHE_FOUND)
         set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
-    endif(CCACHE_FOUND)
+    endif()
 endif()
 
-# Precompiled header macro. Parameters are source file list and filename for pch cpp file.
-macro(glslang_pch SRCS PCHCPP)
-  if(MSVC AND CMAKE_GENERATOR MATCHES "^Visual Studio" AND NOT ${CMAKE_CXX_COMPILER_ID} MATCHES "Clang" AND ENABLE_PCH)
-    set(PCH_NAME "$(IntDir)\\pch.pch")
-    # make source files use/depend on PCH_NAME
-    set_source_files_properties(${${SRCS}} PROPERTIES COMPILE_FLAGS "/Yupch.h /FIpch.h /Fp${PCH_NAME} /Zm300" OBJECT_DEPENDS "${PCH_NAME}")
-    # make PCHCPP file compile and generate PCH_NAME
-    set_source_files_properties(${PCHCPP} PROPERTIES COMPILE_FLAGS "/Ycpch.h /Fp${PCH_NAME} /Zm300" OBJECT_OUTPUTS "${PCH_NAME}")
-    list(APPEND ${SRCS} "${PCHCPP}")
-  endif()
-endmacro(glslang_pch)
-
-project(glslang)
-
 if(ENABLE_CTEST)
     include(CTest)
 endif()
 
 if(ENABLE_HLSL)
     add_definitions(-DENABLE_HLSL)
-endif(ENABLE_HLSL)
+endif()
 
 if(ENABLE_GLSLANG_WEBMIN)
     add_definitions(-DGLSLANG_WEB)
     if(ENABLE_GLSLANG_WEBMIN_DEVEL)
         add_definitions(-DGLSLANG_WEB_DEVEL)
-    endif(ENABLE_GLSLANG_WEBMIN_DEVEL)
-endif(ENABLE_GLSLANG_WEBMIN)
+    endif()
+endif()
 
 if(WIN32)
     set(CMAKE_DEBUG_POSTFIX "d")
-    if(MSVC)
+    option(OVERRIDE_MSVCCRT "Overrides runtime of MSVC " ON)
+    if(MSVC AND OVERRIDE_MSVCCRT)
         include(ChooseMSVCCRT.cmake)
-    endif(MSVC)
+    endif()
     add_definitions(-DGLSLANG_OSINCLUDE_WIN32)
 elseif(UNIX)
     add_definitions(-DGLSLANG_OSINCLUDE_UNIX)
-else(WIN32)
+else()
     message("unknown platform")
-endif(WIN32)
+endif()
 
 if(${CMAKE_CXX_COMPILER_ID} MATCHES "GNU")
     add_compile_options(-Wall -Wmaybe-uninitialized -Wuninitialized -Wunused -Wunused-local-typedefs
@@ -162,7 +171,7 @@ if(${CMAKE_CXX_COMPILER_ID} MATCHES "GNU")
         add_compile_options(-Werror=deprecated-copy)
     endif()
 
-    if(NOT CMAKE_VERSION VERSION_LESS "3.13")
+    if(NOT CMAKE_VERSION VERSION_LESS "3.13" AND NOT CMAKE_SYSTEM_NAME STREQUAL "Darwin")
         # Error if there's symbols that are not found at link time.
         # add_link_options() was added in CMake 3.13 - if using an earlier
         # version don't set this - it should be caught by presubmits anyway.
@@ -183,19 +192,26 @@ elseif(${CMAKE_CXX_COMPILER_ID} MATCHES "Clang" AND NOT MSVC)
         # Error if there's symbols that are not found at link time.
         # add_link_options() was added in CMake 3.13 - if using an earlier
         # version don't set this - it should be caught by presubmits anyway.
-        add_link_options("-Wl,-undefined,error")
+        if (WIN32)
+            add_link_options("-Wl,--no-undefined")
+        else()
+            add_link_options("-Wl,-undefined,error")
+        endif()
     endif()
 elseif(MSVC)
     if(NOT ENABLE_RTTI)
         string(FIND "${CMAKE_CXX_FLAGS}" "/GR" MSVC_HAS_GR)
         if(MSVC_HAS_GR)
-            string(REGEX REPLACE /GR /GR- CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
+            string(REGEX REPLACE "/GR" "/GR-" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
         else()
             add_compile_options(/GR-) # Disable RTTI
         endif()
     endif()
     if(ENABLE_EXCEPTIONS)
         add_compile_options(/EHsc) # Enable Exceptions
+       else()
+        string(REGEX REPLACE "/EHsc" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") # Try to remove default /EHsc cxx_flag
+        add_compile_options(/D_HAS_EXCEPTIONS=0)
     endif()
 endif()
 
@@ -209,7 +225,7 @@ if(ENABLE_GLSLANG_JS)
             add_compile_options(-Wno-unused-variable -Wno-unused-const-variable)
         endif()
     endif()
-endif(ENABLE_GLSLANG_JS)
+endif()
 
 # Request C++11
 if(${CMAKE_VERSION} VERSION_LESS 3.1)
@@ -231,15 +247,41 @@ function(glslang_set_link_args TARGET)
     endif()
 endfunction(glslang_set_link_args)
 
-# CMake needs to find the right version of python, right from the beginning,
-# otherwise, it will find the wrong version and fail later
-if(BUILD_EXTERNAL AND IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/External)
-    find_package(PythonInterp 3 REQUIRED)
-
-       # We depend on these for later projects, so they should come first.
-       add_subdirectory(External)
+if(NOT COMMAND find_host_package)
+    macro(find_host_package)
+        find_package(${ARGN})
+    endmacro()
 endif()
 
+# Root directory for build-time generated include files
+set(GLSLANG_GENERATED_INCLUDEDIR "${CMAKE_BINARY_DIR}/include")
+
+################################################################################
+# Build version information generation
+################################################################################
+include(parse_version.cmake)
+set(GLSLANG_CHANGES_FILE      "${CMAKE_CURRENT_SOURCE_DIR}/CHANGES.md")
+set(GLSLANG_BUILD_INFO_H_TMPL "${CMAKE_CURRENT_SOURCE_DIR}/build_info.h.tmpl")
+set(GLSLANG_BUILD_INFO_H      "${GLSLANG_GENERATED_INCLUDEDIR}/glslang/build_info.h")
+
+parse_version(${GLSLANG_CHANGES_FILE} GLSLANG)
+
+function(configurate_version)
+    set(major ${GLSLANG_VERSION_MAJOR})
+    set(minor ${GLSLANG_VERSION_MINOR})
+    set(patch ${GLSLANG_VERSION_PATCH})
+    set(flavor ${GLSLANG_VERSION_FLAVOR})
+    configure_file(${GLSLANG_BUILD_INFO_H_TMPL} ${GLSLANG_BUILD_INFO_H} @ONLY)
+endfunction()
+
+configurate_version()
+
+# glslang_add_build_info_dependency() adds the glslang-build-info dependency and
+# generated include directories to target.
+function(glslang_add_build_info_dependency target)
+    target_include_directories(${target} PUBLIC $<BUILD_INTERFACE:${GLSLANG_GENERATED_INCLUDEDIR}>)
+endfunction()
+
 # glslang_only_export_explicit_symbols() makes the symbol visibility hidden by
 # default for <target> when building shared libraries, and sets the
 # GLSLANG_IS_SHARED_LIBRARY define, and GLSLANG_EXPORTING to 1 when specifically
@@ -255,6 +297,28 @@ function(glslang_only_export_explicit_symbols target)
     endif()
 endfunction()
 
+# glslang_pch() adds precompiled header rules to <target> for the pre-compiled
+# header file <pch>. As target_precompile_headers() was added in CMake 3.16,
+# this is a no-op if called on earlier versions of CMake.
+if(NOT CMAKE_VERSION VERSION_LESS "3.16" AND ENABLE_PCH)
+    function(glslang_pch target pch)
+        target_precompile_headers(${target} PRIVATE ${pch})
+    endfunction()
+else()
+    function(glslang_pch target pch)
+    endfunction()
+    if(ENABLE_PCH)
+        message("Your CMake version is ${CMAKE_VERSION}. Update to at least 3.16 to enable precompiled headers to speed up incremental builds")
+    endif()
+endif()
+
+if(BUILD_EXTERNAL AND IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/External)
+    find_host_package(PythonInterp 3 REQUIRED)
+
+    # We depend on these for later projects, so they should come first.
+    add_subdirectory(External)
+endif()
+
 if(NOT TARGET SPIRV-Tools-opt)
     set(ENABLE_OPT OFF)
 endif()
@@ -277,7 +341,7 @@ endif()
 add_subdirectory(SPIRV)
 if(ENABLE_HLSL)
     add_subdirectory(hlsl)
-endif(ENABLE_HLSL)
+endif()
 if(ENABLE_CTEST)
     add_subdirectory(gtests)
 endif()
@@ -294,13 +358,48 @@ if(ENABLE_CTEST AND BUILD_TESTING)
         set(RESULTS_PATH ${CMAKE_CURRENT_BINARY_DIR}/$<CONFIGURATION>/localResults)
         set(VALIDATOR_PATH ${CMAKE_CURRENT_BINARY_DIR}/StandAlone/$<CONFIGURATION>/glslangValidator)
         set(REMAP_PATH ${CMAKE_CURRENT_BINARY_DIR}/StandAlone/$<CONFIGURATION>/spirv-remap)
-    else(CMAKE_CONFIGURATION_TYPES)
+    else()
         set(RESULTS_PATH ${CMAKE_CURRENT_BINARY_DIR}/localResults)
         set(VALIDATOR_PATH ${CMAKE_CURRENT_BINARY_DIR}/StandAlone/glslangValidator)
         set(REMAP_PATH ${CMAKE_CURRENT_BINARY_DIR}/StandAlone/spirv-remap)
-    endif(CMAKE_CONFIGURATION_TYPES)
+    endif()
 
     add_test(NAME glslang-testsuite
         COMMAND bash ${IGNORE_CR_FLAG} runtests ${RESULTS_PATH} ${VALIDATOR_PATH} ${REMAP_PATH}
         WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/Test/)
 endif()
+
+if(ENABLE_GLSLANG_INSTALL)
+    file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/glslang-config.cmake.in" [=[
+        @PACKAGE_INIT@
+        include("@PACKAGE_PATH_EXPORT_TARGETS@")
+    ]=])
+    
+    set(PATH_EXPORT_TARGETS "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}/glslang-targets.cmake")
+    configure_package_config_file(
+        "${CMAKE_CURRENT_BINARY_DIR}/glslang-config.cmake.in"
+        "${CMAKE_CURRENT_BINARY_DIR}/glslang-config.cmake"
+        PATH_VARS
+            PATH_EXPORT_TARGETS
+        INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
+    )
+    
+    write_basic_package_version_file("${CMAKE_CURRENT_BINARY_DIR}/glslang-config-version.cmake"
+        VERSION ${GLSLANG_VERSION}
+        COMPATIBILITY SameMajorVersion
+    )
+    
+    install(
+        EXPORT      glslang-targets
+        NAMESPACE   "glslang::"
+        DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}"
+    )
+    
+    install(
+        FILES
+            "${CMAKE_CURRENT_BINARY_DIR}/glslang-config.cmake"
+            "${CMAKE_CURRENT_BINARY_DIR}/glslang-config-version.cmake"
+        DESTINATION
+            "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}"
+    )
+endif()
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