Modernise CMake

* Use `GNUInstallDirs` in order to respect GNU conventions. This is especially important for multi-arch/multi-lib setups. * Specify position independent mode building properly, without using the historic hack of adding `-fPIC` as a definition. This makes the build system more portable. * Only detect C++ (and not C) to slightly speed up configuring. * Specify C++11 mode using modern CMake idioms. * Fix some whitespace issues.
2017-04-28 22:46:52 +02:00 · 2017-04-28 22:46:52 +02:00 · 5a5699bdbd
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -1,6 +1,11 @@
-cmake_minimum_required(VERSION 2.8.11)
+# increase to 3.1 once all major distributions
+# include a version of CMake >= 3.1
+cmake_minimum_required(VERSION 2.8.12)
 set_property(GLOBAL PROPERTY USE_FOLDERS ON)

+# Adhere to GNU filesystem layout conventions
+include(GNUInstallDirs)
+
 option(ENABLE_AMD_EXTENSIONS "Enables support of AMD-specific extensions" ON)
 option(ENABLE_GLSLANG_BINARIES "Builds glslangValidator and spirv-remap" ON)

@ -8,10 +13,6 @@ option(ENABLE_NV_EXTENSIONS "Enables support of Nvidia-specific extensions" ON)

 option(ENABLE_HLSL "Enables HLSL input support" ON)

-enable_testing()
-
-set(CMAKE_INSTALL_PREFIX "install" CACHE STRING "prefix")
-
 project(glslang)

 if(ENABLE_AMD_EXTENSIONS)
@ -33,33 +34,39 @@ if(WIN32)
    endif(MSVC)
    add_definitions(-DGLSLANG_OSINCLUDE_WIN32)
 elseif(UNIX)
-    add_definitions(-fPIC)
    add_definitions(-DGLSLANG_OSINCLUDE_UNIX)
 else(WIN32)
    message("unknown platform")
 endif(WIN32)

-if(CMAKE_COMPILER_IS_GNUCXX)
-    add_definitions(-Wall -Wmaybe-uninitialized -Wuninitialized -Wunused -Wunused-local-typedefs
-      -Wunused-parameter -Wunused-value  -Wunused-variable -Wunused-but-set-parameter -Wunused-but-set-variable)
-    add_definitions(-Wno-reorder)  # disable this from -Wall, since it happens all over.
-    add_definitions(-std=c++11)
+if(${CMAKE_CXX_COMPILER_ID} MATCHES "GNU")
+    add_compile_options(-Wall -Wmaybe-uninitialized -Wuninitialized -Wunused -Wunused-local-typedefs
+                        -Wunused-parameter -Wunused-value  -Wunused-variable -Wunused-but-set-parameter -Wunused-but-set-variable)
+    add_compile_options(-Wno-reorder)  # disable this from -Wall, since it happens all over.
 elseif(${CMAKE_CXX_COMPILER_ID} MATCHES "Clang")
-    add_definitions(-Wall -Wuninitialized -Wunused -Wunused-local-typedefs
-      -Wunused-parameter -Wunused-value  -Wunused-variable)
-    add_definitions(-Wno-reorder)  # disable this from -Wall, since it happens all over.
-    add_definitions(-std=c++11)
+    add_compile_options(-Wall -Wuninitialized -Wunused -Wunused-local-typedefs
+                        -Wunused-parameter -Wunused-value  -Wunused-variable)
+    add_compile_options(-Wno-reorder)  # disable this from -Wall, since it happens all over.
+endif()
+
+# Request C++11
+if(${CMAKE_VERSION} VERSION_LESS 3.1)
+    # CMake versions before 3.1 do not understand CMAKE_CXX_STANDARD
+    # remove this block once CMake >=3.1 has fixated in the ecosystem
+    add_compile_options(-std=c++11)
+else()
+    set(CMAKE_CXX_STANDARD 11)
+    set(CMAKE_CXX_STANDARD_REQUIRED ON)
+    set(CMAKE_CXX_EXTENSIONS OFF)
 endif()

 function(glslang_set_link_args TARGET)
    # For MinGW compiles, statically link against the GCC and C++ runtimes.
    # This avoids the need to ship those runtimes as DLLs.
-    if(WIN32)
-	if(${CMAKE_CXX_COMPILER_ID} MATCHES "GNU")
-	    set_target_properties(${TARGET} PROPERTIES
-		    LINK_FLAGS "-static -static-libgcc -static-libstdc++")
-        endif()
-    endif(WIN32)
+    if(WIN32 AND ${CMAKE_CXX_COMPILER_ID} MATCHES "GNU")
+        set_target_properties(${TARGET} PROPERTIES
+                              LINK_FLAGS "-static -static-libgcc -static-libstdc++")
+    endif()
 endfunction(glslang_set_link_args)

 # We depend on these for later projects, so they should come first.
@ -68,7 +75,7 @@ add_subdirectory(External)
 add_subdirectory(glslang)
 add_subdirectory(OGLCompilersDLL)
 if(ENABLE_GLSLANG_BINARIES)
-	add_subdirectory(StandAlone)
+    add_subdirectory(StandAlone)
 endif()
 add_subdirectory(SPIRV)
 if(ENABLE_HLSL)
--- a/External/CMakeLists.txt
+++ b/External/CMakeLists.txt
@ -2,33 +2,32 @@
 set_property(DIRECTORY APPEND PROPERTY COMPILE_OPTIONS -w)

 if (TARGET gmock)
-  message(STATUS "Google Mock already configured - use it")
+    message(STATUS "Google Mock already configured - use it")
 elseif(IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/googletest)
-  # We need to make sure Google Test does not mess up with the
-  # global CRT settings on Windows.
-  if(WIN32)
-    set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
-  endif(WIN32)
-  add_subdirectory(googletest)
-  set(GTEST_TARGETS
-    gtest
-    gtest_main
-    gmock
-    gmock_main
-  )
-  foreach(target ${GTEST_TARGETS})
-    set_property(TARGET ${target} PROPERTY FOLDER gtest)
-  endforeach()
-  mark_as_advanced(gmock_build_tests
-    BUILD_GMOCK
-    BUILD_GTEST
-    BUILD_SHARED_LIBS
-    gtest_build_samples
-    gtest_build_tests
-    gtest_disable_pthreads
-    gtest_force_shared_crt
-    gtest_hide_internal_symbols)
+    # We need to make sure Google Test does not mess up with the
+    # global CRT settings on Windows.
+    if(WIN32)
+        set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+    endif(WIN32)
+    add_subdirectory(googletest)
+    set(GTEST_TARGETS
+        gtest
+        gtest_main
+        gmock
+        gmock_main)
+    foreach(target ${GTEST_TARGETS})
+        set_property(TARGET ${target} PROPERTY FOLDER gtest)
+    endforeach()
+    mark_as_advanced(gmock_build_tests
+        BUILD_GMOCK
+        BUILD_GTEST
+        BUILD_SHARED_LIBS
+        gtest_build_samples
+        gtest_build_tests
+        gtest_disable_pthreads
+        gtest_force_shared_crt
+        gtest_hide_internal_symbols)
 else()
-  message(STATUS
-    "Google Mock was not found - tests based on that will not build")
+    message(STATUS
+        "Google Mock was not found - tests based on that will not build")
 endif()
--- a/OGLCompilersDLL/CMakeLists.txt
+++ b/OGLCompilersDLL/CMakeLists.txt
@ -1,11 +1,11 @@
 set(SOURCES InitializeDll.cpp InitializeDll.h)

 add_library(OGLCompiler STATIC ${SOURCES})
-set_property(TARGET OGLCompiler PROPERTY FOLDER glslang)
+set_property(TARGET OGLCompiler PROPERTY FOLDER glslang POSITION_INDEPENDENT_CODE ON)

 if(WIN32)
    source_group("Source" FILES ${SOURCES})
 endif(WIN32)

-install(TARGETS OGLCompiler 
-        ARCHIVE DESTINATION lib)
+install(TARGETS OGLCompiler
+        ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
--- a/SPIRV/CMakeLists.txt
+++ b/SPIRV/CMakeLists.txt
@ -40,11 +40,11 @@ if(ENABLE_NV_EXTENSIONS)
 endif(ENABLE_NV_EXTENSIONS)

 add_library(SPIRV STATIC ${SOURCES} ${HEADERS})
-set_property(TARGET SPIRV PROPERTY FOLDER glslang)
+set_property(TARGET SPIRV PROPERTY FOLDER glslang POSITION_INDEPENDENT_CODE ON)
 target_link_libraries(SPIRV glslang)

 add_library(SPVRemapper STATIC ${SPVREMAP_SOURCES} ${SPVREMAP_HEADERS})
-set_property(TARGET SPVRemapper PROPERTY FOLDER glslang)
+set_property(TARGET SPVRemapper PROPERTY FOLDER glslang POSITION_INDEPENDENT_CODE ON)

 if(WIN32)
    source_group("Source" FILES ${SOURCES} ${HEADERS})
@ -52,6 +52,6 @@ if(WIN32)
 endif(WIN32)

 install(TARGETS SPIRV SPVRemapper
-        ARCHIVE DESTINATION lib)
+        ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})

-install(FILES ${HEADERS} ${SPVREMAP_HEADERS} DESTINATION include/SPIRV/)
+install(FILES ${HEADERS} ${SPVREMAP_HEADERS} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/SPIRV/)
--- a/StandAlone/CMakeLists.txt
+++ b/StandAlone/CMakeLists.txt
@ -1,12 +1,10 @@
 add_library(glslang-default-resource-limits
-    ${CMAKE_CURRENT_SOURCE_DIR}/ResourceLimits.cpp
-)
-set_property(TARGET glslang-default-resource-limits PROPERTY FOLDER glslang)
+            ${CMAKE_CURRENT_SOURCE_DIR}/ResourceLimits.cpp)
+set_property(TARGET glslang-default-resource-limits PROPERTY FOLDER glslang POSITION_INDEPENDENT_CODE ON)

 target_include_directories(glslang-default-resource-limits
-    PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}
-    PUBLIC ${PROJECT_SOURCE_DIR}
-)
+                           PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}
+                           PUBLIC ${PROJECT_SOURCE_DIR})

 set(SOURCES StandAlone.cpp)
 set(REMAPPER_SOURCES spirv-remap.cpp)
@ -41,7 +39,7 @@ if(WIN32)
 endif(WIN32)

 install(TARGETS glslangValidator
-        RUNTIME DESTINATION bin)
+        RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})

 install(TARGETS spirv-remap
-        RUNTIME DESTINATION bin)
+        RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
--- a/glslang/CMakeLists.txt
+++ b/glslang/CMakeLists.txt
@ -81,10 +81,10 @@ set(HEADERS
 # set(BISON_GLSLParser_OUTPUT_SOURCE ${CMAKE_CURRENT_SOURCE_DIR}/MachineIndependent/glslang_tab.cpp)

 add_library(glslang STATIC ${BISON_GLSLParser_OUTPUT_SOURCE} ${SOURCES} ${HEADERS})
-set_property(TARGET glslang PROPERTY FOLDER glslang)
+set_property(TARGET glslang PROPERTY FOLDER glslang POSITION_INDEPENDENT_CODE ON)
 target_link_libraries(glslang OGLCompiler OSDependent)
 if(ENABLE_HLSL)
-	target_link_libraries(glslang HLSL)
+    target_link_libraries(glslang HLSL)
 endif()

 if(WIN32)
@ -95,10 +95,10 @@ if(WIN32)
    source_group("MachineIndependent\\Preprocessor" REGULAR_EXPRESSION "MachineIndependent/preprocessor/*")
 endif(WIN32)

-install(TARGETS glslang 
-        ARCHIVE DESTINATION lib)
+install(TARGETS glslang
+        ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})

 foreach(file ${HEADERS})
    get_filename_component(dir ${file} DIRECTORY)
-    install(FILES ${file} DESTINATION include/glslang/${dir})
+    install(FILES ${file} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/glslang/${dir})
 endforeach()
--- a/glslang/OSDependent/Unix/CMakeLists.txt
+++ b/glslang/OSDependent/Unix/CMakeLists.txt
@ -1,5 +1,5 @@
 add_library(OSDependent STATIC ossource.cpp ../osinclude.h)
-set_property(TARGET OSDependent PROPERTY FOLDER glslang)
+set_property(TARGET OSDependent PROPERTY FOLDER glslang POSITION_INDEPENDENT_CODE ON)

-install(TARGETS OSDependent 
-        ARCHIVE DESTINATION lib)
+install(TARGETS OSDependent
+        ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
--- a/glslang/OSDependent/Windows/CMakeLists.txt
+++ b/glslang/OSDependent/Windows/CMakeLists.txt
@ -1,17 +1,17 @@
 set(SOURCES ossource.cpp ../osinclude.h)

 add_library(OSDependent STATIC ${SOURCES})
-set_property(TARGET OSDependent PROPERTY FOLDER glslang)
+set_property(TARGET OSDependent PROPERTY FOLDER glslang POSITION_INDEPENDENT_CODE ON)

 # MinGW GCC complains about function pointer casts to void*.
 # Turn that off with -fpermissive.
 if(${CMAKE_CXX_COMPILER_ID} MATCHES "GNU")
-  target_compile_options(OSDependent PRIVATE -fpermissive)
+    target_compile_options(OSDependent PRIVATE -fpermissive)
 endif()

 if(WIN32)
    source_group("Source" FILES ${SOURCES})
 endif(WIN32)

-install(TARGETS OSDependent 
-        ARCHIVE DESTINATION lib)
+install(TARGETS OSDependent
+        ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
--- a/gtests/CMakeLists.txt
+++ b/gtests/CMakeLists.txt
@ -1,55 +1,55 @@
 if (TARGET gmock)
-  message(STATUS "Google Mock found - building tests")
+    message(STATUS "Google Mock found - building tests")

-  set(TEST_SOURCES
-    # Framework related source files
-    ${CMAKE_CURRENT_SOURCE_DIR}/Initializer.h
-    ${CMAKE_CURRENT_SOURCE_DIR}/main.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/Settings.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/Settings.h
-    ${CMAKE_CURRENT_SOURCE_DIR}/TestFixture.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/TestFixture.h
+    set(TEST_SOURCES
+        # Framework related source files
+        ${CMAKE_CURRENT_SOURCE_DIR}/Initializer.h
+        ${CMAKE_CURRENT_SOURCE_DIR}/main.cpp
+        ${CMAKE_CURRENT_SOURCE_DIR}/Settings.cpp
+        ${CMAKE_CURRENT_SOURCE_DIR}/Settings.h
+        ${CMAKE_CURRENT_SOURCE_DIR}/TestFixture.cpp
+        ${CMAKE_CURRENT_SOURCE_DIR}/TestFixture.h

-    # Test related source files
-    ${CMAKE_CURRENT_SOURCE_DIR}/AST.FromFile.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/BuiltInResource.FromFile.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/Config.FromFile.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/HexFloat.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/Hlsl.FromFile.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/Link.FromFile.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/Link.FromFile.Vk.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/Pp.FromFile.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/Spv.FromFile.cpp
-    # -- Remapper tests
-    ${CMAKE_CURRENT_SOURCE_DIR}/Remap.FromFile.cpp
-  )
+        # Test related source files
+        ${CMAKE_CURRENT_SOURCE_DIR}/AST.FromFile.cpp
+        ${CMAKE_CURRENT_SOURCE_DIR}/BuiltInResource.FromFile.cpp
+        ${CMAKE_CURRENT_SOURCE_DIR}/Config.FromFile.cpp
+        ${CMAKE_CURRENT_SOURCE_DIR}/HexFloat.cpp
+        ${CMAKE_CURRENT_SOURCE_DIR}/Hlsl.FromFile.cpp
+        ${CMAKE_CURRENT_SOURCE_DIR}/Link.FromFile.cpp
+        ${CMAKE_CURRENT_SOURCE_DIR}/Link.FromFile.Vk.cpp
+        ${CMAKE_CURRENT_SOURCE_DIR}/Pp.FromFile.cpp
+        ${CMAKE_CURRENT_SOURCE_DIR}/Spv.FromFile.cpp

-  add_executable(glslangtests ${TEST_SOURCES})
-  set_property(TARGET glslangtests PROPERTY FOLDER tests)
-  glslang_set_link_args(glslangtests)
-  install(TARGETS glslangtests
-        RUNTIME DESTINATION bin)
+        # -- Remapper tests
+        ${CMAKE_CURRENT_SOURCE_DIR}/Remap.FromFile.cpp)

-  set(GLSLANG_TEST_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/../Test")
-  # Supply a default test root directory, so that manual testing
-  # doesn't have to specify the --test-root option in the normal
-  # case that you want to use the tests from the same source tree.
-  target_compile_definitions(glslangtests
-    PRIVATE GLSLANG_TEST_DIRECTORY="${GLSLANG_TEST_DIRECTORY}")
-  target_include_directories(glslangtests PRIVATE
-    ${CMAKE_CURRENT_SOURCE_DIR}
-    ${PROJECT_SOURCE_DIR}
-    ${gmock_SOURCE_DIR}/include
-    ${gtest_SOURCE_DIR}/include)
+    add_executable(glslangtests ${TEST_SOURCES})
+    set_property(TARGET glslangtests PROPERTY FOLDER tests)
+    glslang_set_link_args(glslangtests)
+    install(TARGETS glslangtests
+            RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})

-  set(LIBRARIES
-      SPVRemapper glslang OSDependent OGLCompiler glslang
-      SPIRV glslang-default-resource-limits)
-  if(ENABLE_HLSL)
-    set(LIBRARIES ${LIBRARIES} HLSL)
-  endif(ENABLE_HLSL)
-  target_link_libraries(glslangtests PRIVATE ${LIBRARIES} gmock)
+    set(GLSLANG_TEST_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/../Test")
+    # Supply a default test root directory, so that manual testing
+    # doesn't have to specify the --test-root option in the normal
+    # case that you want to use the tests from the same source tree.
+    target_compile_definitions(glslangtests
+                               PRIVATE GLSLANG_TEST_DIRECTORY="${GLSLANG_TEST_DIRECTORY}")
+    target_include_directories(glslangtests PRIVATE
+                               ${CMAKE_CURRENT_SOURCE_DIR}
+                               ${PROJECT_SOURCE_DIR}
+                               ${gmock_SOURCE_DIR}/include
+                               ${gtest_SOURCE_DIR}/include)

-  add_test(NAME glslang-gtests
-    COMMAND glslangtests --test-root "${GLSLANG_TEST_DIRECTORY}")
+    set(LIBRARIES
+        SPVRemapper glslang OSDependent OGLCompiler glslang
+        SPIRV glslang-default-resource-limits)
+    if(ENABLE_HLSL)
+        set(LIBRARIES ${LIBRARIES} HLSL)
+    endif(ENABLE_HLSL)
+    target_link_libraries(glslangtests PRIVATE ${LIBRARIES} gmock)
+
+    add_test(NAME glslang-gtests
+             COMMAND glslangtests --test-root "${GLSLANG_TEST_DIRECTORY}")
 endif()
--- a/hlsl/CMakeLists.txt
+++ b/hlsl/CMakeLists.txt
@ -7,7 +7,7 @@ set(SOURCES
    hlslGrammar.cpp
    hlslParseables.cpp)

-  set(HEADERS
+set(HEADERS
    hlslAttributes.h
    hlslParseHelper.h
    hlslTokens.h
@ -18,11 +18,11 @@ set(SOURCES
    hlslParseables.h)

 add_library(HLSL STATIC ${SOURCES} ${HEADERS})
-set_property(TARGET HLSL PROPERTY FOLDER hlsl)
+set_property(TARGET HLSL PROPERTY FOLDER hlsl POSITION_INDEPENDENT_CODE ON)

 if(WIN32)
    source_group("Source" FILES ${SOURCES} ${HEADERS})
 endif(WIN32)

 install(TARGETS HLSL
-        ARCHIVE DESTINATION lib)
+        ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})