glslang/CMakeLists.txt

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# Copyright (C) 2020 The Khronos Group Inc.
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
#
# Neither the name of The Khronos Group Inc. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
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cmake_minimum_required(VERSION 3.14.0)
project(glslang)
set_property(GLOBAL PROPERTY USE_FOLDERS ON)
# Adhere to GNU filesystem layout conventions
include(GNUInstallDirs)
include(CMakePackageConfigHelpers)
# Needed for CMAKE_DEPENDENT_OPTION macro
include(CMakeDependentOption)
option(BUILD_SHARED_LIBS "Build Shared Libraries" OFF)
option(BUILD_EXTERNAL "Build external dependencies in /External" ON)
set(LIB_TYPE STATIC)
if(BUILD_SHARED_LIBS)
set(LIB_TYPE SHARED)
endif()
Generate build information from CHANGES.md This PR significantly reworks the way glslang is versioned. Instead of committing changes to the `GLSLANG_MINOR_VERSION` define in `glslang/Public/ShaderLang.h`, and using `make-revision` to generate `GLSLANG_PATCH_LEVEL` in `glslang/Include/revision.h`, all version information is now derived from the new `CHANGES.md` file. `CHANGES.md` acts as the single source of truth for glslang version information, along with a convenient place to put all release notes for each notable change made. `CHANGES.md` is parsed using the new `build_info.py` python script. This script can read basic template files to produce new source files, which it does to read the new `build_info.h.tmpl` to generate (at build time) a glslang private header at `<build-dir>/include/glslang/build_info.h`. I've written generators for each of the CMake, Bazel, gn, and `Android.mk` build scripts. The new version code conforms to the Semantic Versioning 2.0 spec. This new version is also used by the CMake rules to produce versioned shared objects, including a major-versioned SONAME. New APIs: --------- * `glslang::GetVersion()` returns a `Version` struct with the version major, minor, patch and flavor. Breaking API changes: --------------------- * The public defines `GLSLANG_MINOR_VERSION` and `GLSLANG_PATCH_LEVEL` have been entirely removed. * `glslang/Public/ShaderLang.h` and `glslang/Include/revision.h` have been deleted. * Instead, `<build-dir>/include/glslang/build_info.h` is created in the build directory, and `<build-dir>/include` is a CMake `PUBLIC` (dependee-inherited) include directory for the glslang targets. * `<build-dir>/include/glslang/build_info.h` contains the following new #defines: `GLSLANG_VERSION_MAJOR`, `GLSLANG_VERSION_MINOR`, `GLSLANG_VERSION_PATCH`, `GLSLANG_VERSION_FLAVOR`, `GLSLANG_VERSION_GREATER_THAN(major, minor, patch)`, `GLSLANG_VERSION_GREATER_OR_EQUAL_TO(major, minor, patch)`, `GLSLANG_VERSION_LESS_THAN(major, minor, patch)`, `GLSLANG_VERSION_LESS_OR_EQUAL_TO(major, minor, patch)` * The CMake install output directory contains a copy of `build_info.h` at: `include/glslang/build_info.h` * Python3 is now always required to build glslang (likely always required for transitive dependency builds).
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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)
endif()
option(ENABLE_SPVREMAPPER "Enables building of SPVRemapper" ON)
option(ENABLE_GLSLANG_BINARIES "Builds glslangValidator and spirv-remap" ON)
option(ENABLE_GLSLANG_JS
"If using Emscripten, build glslang.js. Otherwise, builds a sample executable for binary-size testing." OFF)
CMAKE_DEPENDENT_OPTION(ENABLE_GLSLANG_WEBMIN
"Reduces glslang to minimum needed for web use"
OFF "ENABLE_GLSLANG_JS"
OFF)
CMAKE_DEPENDENT_OPTION(ENABLE_GLSLANG_WEBMIN_DEVEL
"For ENABLE_GLSLANG_WEBMIN builds, enables compilation error messages"
OFF "ENABLE_GLSLANG_WEBMIN"
OFF)
CMAKE_DEPENDENT_OPTION(ENABLE_EMSCRIPTEN_SINGLE_FILE
"If using Emscripten, enables SINGLE_FILE build"
OFF "ENABLE_GLSLANG_JS AND EMSCRIPTEN"
OFF)
CMAKE_DEPENDENT_OPTION(ENABLE_EMSCRIPTEN_ENVIRONMENT_NODE
"If using Emscripten, builds to run on Node instead of Web"
OFF "ENABLE_GLSLANG_JS AND EMSCRIPTEN"
OFF)
CMAKE_DEPENDENT_OPTION(ENABLE_HLSL
"Enables HLSL input support"
ON "NOT ENABLE_GLSLANG_WEBMIN"
OFF)
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option(ENABLE_RTTI "Enables RTTI" OFF)
option(ENABLE_EXCEPTIONS "Enables Exceptions" OFF)
option(ENABLE_OPT "Enables spirv-opt capability if present" ON)
if(MINGW OR (CMAKE_SYSTEM_NAME STREQUAL "Darwin" AND ${CMAKE_CXX_COMPILER_ID} MATCHES "GNU"))
# Workaround for CMake behavior on Mac OS with gcc, cmake generates -Xarch_* arguments
# which gcc rejects
option(ENABLE_PCH "Enables Precompiled header" OFF)
else()
option(ENABLE_PCH "Enables Precompiled header" ON)
endif()
option(ENABLE_CTEST "Enables testing" ON)
if(ENABLE_CTEST)
include(CTest)
endif()
if(ENABLE_HLSL)
add_definitions(-DENABLE_HLSL)
endif()
if(ENABLE_GLSLANG_WEBMIN)
add_definitions(-DGLSLANG_WEB)
if(ENABLE_GLSLANG_WEBMIN_DEVEL)
add_definitions(-DGLSLANG_WEB_DEVEL)
endif()
endif()
if(WIN32)
set(CMAKE_DEBUG_POSTFIX "d")
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option(OVERRIDE_MSVCCRT "Overrides runtime of MSVC " ON)
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if(MSVC AND OVERRIDE_MSVCCRT)
include(ChooseMSVCCRT.cmake)
endif()
add_definitions(-DGLSLANG_OSINCLUDE_WIN32)
elseif(UNIX OR ANDROID)
add_definitions(-DGLSLANG_OSINCLUDE_UNIX)
else()
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message("unknown platform")
endif()
if(${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 -fno-exceptions)
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if(NOT ENABLE_RTTI)
add_compile_options(-fno-rtti)
endif()
if(NOT ENABLE_EXCEPTIONS)
add_compile_options(-fno-exceptions)
endif()
if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS "9.0.0")
add_compile_options(-Werror=deprecated-copy)
endif()
if(NOT CMAKE_SYSTEM_NAME STREQUAL "OpenBSD" AND NOT CMAKE_SYSTEM_NAME STREQUAL "Darwin")
# Error if there's symbols that are not found at link time.
add_link_options("-Wl,--no-undefined")
endif()
elseif(${CMAKE_CXX_COMPILER_ID} MATCHES "Clang" AND NOT MSVC)
add_compile_options(-Wall -Wuninitialized -Wunused -Wunused-local-typedefs
-Wunused-parameter -Wunused-value -Wunused-variable)
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if(NOT ENABLE_RTTI)
add_compile_options(-fno-rtti)
endif()
if(NOT ENABLE_EXCEPTIONS)
add_compile_options(-fno-exceptions)
endif()
if(NOT CMAKE_SYSTEM_NAME STREQUAL "OpenBSD")
# Error if there's symbols that are not found at link time.
if (CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang")
add_link_options("-Wl,-undefined,error")
elseif(NOT APPLE)
add_link_options("-Wl,--no-undefined")
endif()
endif()
elseif(MSVC)
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if(NOT ENABLE_RTTI)
Fixed msvc 2019 nmake compiler warnings with RTTI. By default cmake generates cxx_flags with `/GR` parameter. I updated CMAKE_CXX_FLAGS string and replaced `/GR` -> `/GR-` How to reproduce: Visual Studio 2019 x64 command port mkdir build-msvc2019 cd build-msvc2019 cmake -G"NMake Makefiles" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_LIBDIR=install .. nmake COMPILATION BEFORE: Scanning dependencies of target OSDependent [ 1%] Building CXX object glslang/OSDependent/Windows/CMakeFiles/OSDependent.dir/ossource.cpp.obj cl : Command line warning D9025 : overriding '/GR' with '/GR-' ossource.cpp [ 3%] Linking CXX static library OSDependent.lib [ 3%] Built target OSDependent Scanning dependencies of target OGLCompiler [ 4%] Building CXX object OGLCompilersDLL/CMakeFiles/OGLCompiler.dir/InitializeDll.cpp.obj cl : Command line warning D9025 : overriding '/GR' with '/GR-' InitializeDll.cpp [ 6%] Linking CXX static library OGLCompiler.lib [ 6%] Built target OGLCompiler Scanning dependencies of target glslang [ 7%] Building CXX object glslang/CMakeFiles/glslang.dir/MachineIndependent/glslang_tab.cpp.obj cl : Command line warning D9025 : overriding '/GR' with '/GR-' glslang_tab.cpp [ 9%] Building CXX object glslang/CMakeFiles/glslang.dir/MachineIndependent/attribute.cpp.obj cl : Command line warning D9025 : overriding '/GR' with '/GR-' FLAGS BEFORE: -- CMAKE_C_FLAGS: /DWIN32 /D_WINDOWS /W3 -- CMAKE_CXX_FLAGS: /DWIN32 /D_WINDOWS /W3 /GR /EHsc -- CMAKE_CXX_FLAGS_DEBUG: /MDd /Zi /Ob0 /Od /RTC1 -- CMAKE_CXX_FLAGS_RELEASE: /MD /O2 /Ob2 /DNDEBUG COMPILATION AFTER: [ 1%] Building CXX object glslang/OSDependent/Windows/CMakeFiles/OSDependent.dir/ossource.cpp.obj ossource.cpp [ 3%] Linking CXX static library OSDependent.lib [ 3%] Built target OSDependent [ 4%] Building CXX object OGLCompilersDLL/CMakeFiles/OGLCompiler.dir/InitializeDll.cpp.obj InitializeDll.cpp [ 6%] Linking CXX static library OGLCompiler.lib [ 6%] Built target OGLCompiler [ 7%] Building CXX object glslang/CMakeFiles/glslang.dir/MachineIndependent/glslang_tab.cpp.obj glslang_tab.cpp [ 9%] Building CXX object glslang/CMakeFiles/glslang.dir/MachineIndependent/attribute.cpp.obj FLAGS AFTER: -- CMAKE_C_FLAGS: /DWIN32 /D_WINDOWS /W3 -- CMAKE_CXX_FLAGS: /DWIN32 /D_WINDOWS /W3 /GR- /EHsc -- CMAKE_CXX_FLAGS_DEBUG: /MDd /Zi /Ob0 /Od /RTC1 -- CMAKE_CXX_FLAGS_RELEASE: /MD /O2 /Ob2 /DNDEBUG
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string(FIND "${CMAKE_CXX_FLAGS}" "/GR" MSVC_HAS_GR)
if(MSVC_HAS_GR)
string(REGEX REPLACE "/GR" "/GR-" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
Fixed msvc 2019 nmake compiler warnings with RTTI. By default cmake generates cxx_flags with `/GR` parameter. I updated CMAKE_CXX_FLAGS string and replaced `/GR` -> `/GR-` How to reproduce: Visual Studio 2019 x64 command port mkdir build-msvc2019 cd build-msvc2019 cmake -G"NMake Makefiles" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_LIBDIR=install .. nmake COMPILATION BEFORE: Scanning dependencies of target OSDependent [ 1%] Building CXX object glslang/OSDependent/Windows/CMakeFiles/OSDependent.dir/ossource.cpp.obj cl : Command line warning D9025 : overriding '/GR' with '/GR-' ossource.cpp [ 3%] Linking CXX static library OSDependent.lib [ 3%] Built target OSDependent Scanning dependencies of target OGLCompiler [ 4%] Building CXX object OGLCompilersDLL/CMakeFiles/OGLCompiler.dir/InitializeDll.cpp.obj cl : Command line warning D9025 : overriding '/GR' with '/GR-' InitializeDll.cpp [ 6%] Linking CXX static library OGLCompiler.lib [ 6%] Built target OGLCompiler Scanning dependencies of target glslang [ 7%] Building CXX object glslang/CMakeFiles/glslang.dir/MachineIndependent/glslang_tab.cpp.obj cl : Command line warning D9025 : overriding '/GR' with '/GR-' glslang_tab.cpp [ 9%] Building CXX object glslang/CMakeFiles/glslang.dir/MachineIndependent/attribute.cpp.obj cl : Command line warning D9025 : overriding '/GR' with '/GR-' FLAGS BEFORE: -- CMAKE_C_FLAGS: /DWIN32 /D_WINDOWS /W3 -- CMAKE_CXX_FLAGS: /DWIN32 /D_WINDOWS /W3 /GR /EHsc -- CMAKE_CXX_FLAGS_DEBUG: /MDd /Zi /Ob0 /Od /RTC1 -- CMAKE_CXX_FLAGS_RELEASE: /MD /O2 /Ob2 /DNDEBUG COMPILATION AFTER: [ 1%] Building CXX object glslang/OSDependent/Windows/CMakeFiles/OSDependent.dir/ossource.cpp.obj ossource.cpp [ 3%] Linking CXX static library OSDependent.lib [ 3%] Built target OSDependent [ 4%] Building CXX object OGLCompilersDLL/CMakeFiles/OGLCompiler.dir/InitializeDll.cpp.obj InitializeDll.cpp [ 6%] Linking CXX static library OGLCompiler.lib [ 6%] Built target OGLCompiler [ 7%] Building CXX object glslang/CMakeFiles/glslang.dir/MachineIndependent/glslang_tab.cpp.obj glslang_tab.cpp [ 9%] Building CXX object glslang/CMakeFiles/glslang.dir/MachineIndependent/attribute.cpp.obj FLAGS AFTER: -- CMAKE_C_FLAGS: /DWIN32 /D_WINDOWS /W3 -- CMAKE_CXX_FLAGS: /DWIN32 /D_WINDOWS /W3 /GR- /EHsc -- CMAKE_CXX_FLAGS_DEBUG: /MDd /Zi /Ob0 /Od /RTC1 -- CMAKE_CXX_FLAGS_RELEASE: /MD /O2 /Ob2 /DNDEBUG
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else()
add_compile_options(/GR-) # Disable RTTI
endif()
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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()
if(ENABLE_GLSLANG_JS)
if(MSVC)
add_compile_options(/Os /GR-)
else()
add_compile_options(-Os -fno-rtti -fno-exceptions)
if(${CMAKE_CXX_COMPILER_ID} MATCHES "Clang" AND NOT MSVC)
add_compile_options(-Wno-unused-parameter)
add_compile_options(-Wno-unused-variable -Wno-unused-const-variable)
endif()
endif()
endif()
# Request C++17
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
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 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)
if(NOT COMMAND find_host_package)
macro(find_host_package)
find_package(${ARGN})
endmacro()
endif()
Generate build information from CHANGES.md This PR significantly reworks the way glslang is versioned. Instead of committing changes to the `GLSLANG_MINOR_VERSION` define in `glslang/Public/ShaderLang.h`, and using `make-revision` to generate `GLSLANG_PATCH_LEVEL` in `glslang/Include/revision.h`, all version information is now derived from the new `CHANGES.md` file. `CHANGES.md` acts as the single source of truth for glslang version information, along with a convenient place to put all release notes for each notable change made. `CHANGES.md` is parsed using the new `build_info.py` python script. This script can read basic template files to produce new source files, which it does to read the new `build_info.h.tmpl` to generate (at build time) a glslang private header at `<build-dir>/include/glslang/build_info.h`. I've written generators for each of the CMake, Bazel, gn, and `Android.mk` build scripts. The new version code conforms to the Semantic Versioning 2.0 spec. This new version is also used by the CMake rules to produce versioned shared objects, including a major-versioned SONAME. New APIs: --------- * `glslang::GetVersion()` returns a `Version` struct with the version major, minor, patch and flavor. Breaking API changes: --------------------- * The public defines `GLSLANG_MINOR_VERSION` and `GLSLANG_PATCH_LEVEL` have been entirely removed. * `glslang/Public/ShaderLang.h` and `glslang/Include/revision.h` have been deleted. * Instead, `<build-dir>/include/glslang/build_info.h` is created in the build directory, and `<build-dir>/include` is a CMake `PUBLIC` (dependee-inherited) include directory for the glslang targets. * `<build-dir>/include/glslang/build_info.h` contains the following new #defines: `GLSLANG_VERSION_MAJOR`, `GLSLANG_VERSION_MINOR`, `GLSLANG_VERSION_PATCH`, `GLSLANG_VERSION_FLAVOR`, `GLSLANG_VERSION_GREATER_THAN(major, minor, patch)`, `GLSLANG_VERSION_GREATER_OR_EQUAL_TO(major, minor, patch)`, `GLSLANG_VERSION_LESS_THAN(major, minor, patch)`, `GLSLANG_VERSION_LESS_OR_EQUAL_TO(major, minor, patch)` * The CMake install output directory contains a copy of `build_info.h` at: `include/glslang/build_info.h` * Python3 is now always required to build glslang (likely always required for transitive dependency builds).
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# 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")
Generate build information from CHANGES.md This PR significantly reworks the way glslang is versioned. Instead of committing changes to the `GLSLANG_MINOR_VERSION` define in `glslang/Public/ShaderLang.h`, and using `make-revision` to generate `GLSLANG_PATCH_LEVEL` in `glslang/Include/revision.h`, all version information is now derived from the new `CHANGES.md` file. `CHANGES.md` acts as the single source of truth for glslang version information, along with a convenient place to put all release notes for each notable change made. `CHANGES.md` is parsed using the new `build_info.py` python script. This script can read basic template files to produce new source files, which it does to read the new `build_info.h.tmpl` to generate (at build time) a glslang private header at `<build-dir>/include/glslang/build_info.h`. I've written generators for each of the CMake, Bazel, gn, and `Android.mk` build scripts. The new version code conforms to the Semantic Versioning 2.0 spec. This new version is also used by the CMake rules to produce versioned shared objects, including a major-versioned SONAME. New APIs: --------- * `glslang::GetVersion()` returns a `Version` struct with the version major, minor, patch and flavor. Breaking API changes: --------------------- * The public defines `GLSLANG_MINOR_VERSION` and `GLSLANG_PATCH_LEVEL` have been entirely removed. * `glslang/Public/ShaderLang.h` and `glslang/Include/revision.h` have been deleted. * Instead, `<build-dir>/include/glslang/build_info.h` is created in the build directory, and `<build-dir>/include` is a CMake `PUBLIC` (dependee-inherited) include directory for the glslang targets. * `<build-dir>/include/glslang/build_info.h` contains the following new #defines: `GLSLANG_VERSION_MAJOR`, `GLSLANG_VERSION_MINOR`, `GLSLANG_VERSION_PATCH`, `GLSLANG_VERSION_FLAVOR`, `GLSLANG_VERSION_GREATER_THAN(major, minor, patch)`, `GLSLANG_VERSION_GREATER_OR_EQUAL_TO(major, minor, patch)`, `GLSLANG_VERSION_LESS_THAN(major, minor, patch)`, `GLSLANG_VERSION_LESS_OR_EQUAL_TO(major, minor, patch)` * The CMake install output directory contains a copy of `build_info.h` at: `include/glslang/build_info.h` * Python3 is now always required to build glslang (likely always required for transitive dependency builds).
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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()
Generate build information from CHANGES.md This PR significantly reworks the way glslang is versioned. Instead of committing changes to the `GLSLANG_MINOR_VERSION` define in `glslang/Public/ShaderLang.h`, and using `make-revision` to generate `GLSLANG_PATCH_LEVEL` in `glslang/Include/revision.h`, all version information is now derived from the new `CHANGES.md` file. `CHANGES.md` acts as the single source of truth for glslang version information, along with a convenient place to put all release notes for each notable change made. `CHANGES.md` is parsed using the new `build_info.py` python script. This script can read basic template files to produce new source files, which it does to read the new `build_info.h.tmpl` to generate (at build time) a glslang private header at `<build-dir>/include/glslang/build_info.h`. I've written generators for each of the CMake, Bazel, gn, and `Android.mk` build scripts. The new version code conforms to the Semantic Versioning 2.0 spec. This new version is also used by the CMake rules to produce versioned shared objects, including a major-versioned SONAME. New APIs: --------- * `glslang::GetVersion()` returns a `Version` struct with the version major, minor, patch and flavor. Breaking API changes: --------------------- * The public defines `GLSLANG_MINOR_VERSION` and `GLSLANG_PATCH_LEVEL` have been entirely removed. * `glslang/Public/ShaderLang.h` and `glslang/Include/revision.h` have been deleted. * Instead, `<build-dir>/include/glslang/build_info.h` is created in the build directory, and `<build-dir>/include` is a CMake `PUBLIC` (dependee-inherited) include directory for the glslang targets. * `<build-dir>/include/glslang/build_info.h` contains the following new #defines: `GLSLANG_VERSION_MAJOR`, `GLSLANG_VERSION_MINOR`, `GLSLANG_VERSION_PATCH`, `GLSLANG_VERSION_FLAVOR`, `GLSLANG_VERSION_GREATER_THAN(major, minor, patch)`, `GLSLANG_VERSION_GREATER_OR_EQUAL_TO(major, minor, patch)`, `GLSLANG_VERSION_LESS_THAN(major, minor, patch)`, `GLSLANG_VERSION_LESS_OR_EQUAL_TO(major, minor, patch)` * The CMake install output directory contains a copy of `build_info.h` at: `include/glslang/build_info.h` * Python3 is now always required to build glslang (likely always required for transitive dependency builds).
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# 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
# building <target>.
function(glslang_only_export_explicit_symbols target)
if(BUILD_SHARED_LIBS)
target_compile_definitions(${target} PUBLIC "GLSLANG_IS_SHARED_LIBRARY=1")
if(WIN32)
target_compile_definitions(${target} PRIVATE "GLSLANG_EXPORTING=1")
else()
target_compile_options(${target} PRIVATE "-fvisibility=hidden")
endif()
endif()
endfunction()
# glslang_pch() adds precompiled header rules to <target> for the pre-compiled
# header file <pch>. As target_precompile_headers() was added in CMake 3.16,
# this is a no-op if called on earlier versions of CMake.
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if(NOT CMAKE_VERSION VERSION_LESS "3.16" AND ENABLE_PCH)
function(glslang_pch target pch)
target_precompile_headers(${target} PRIVATE ${pch})
endfunction()
else()
function(glslang_pch target pch)
endfunction()
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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()
Generate build information from CHANGES.md This PR significantly reworks the way glslang is versioned. Instead of committing changes to the `GLSLANG_MINOR_VERSION` define in `glslang/Public/ShaderLang.h`, and using `make-revision` to generate `GLSLANG_PATCH_LEVEL` in `glslang/Include/revision.h`, all version information is now derived from the new `CHANGES.md` file. `CHANGES.md` acts as the single source of truth for glslang version information, along with a convenient place to put all release notes for each notable change made. `CHANGES.md` is parsed using the new `build_info.py` python script. This script can read basic template files to produce new source files, which it does to read the new `build_info.h.tmpl` to generate (at build time) a glslang private header at `<build-dir>/include/glslang/build_info.h`. I've written generators for each of the CMake, Bazel, gn, and `Android.mk` build scripts. The new version code conforms to the Semantic Versioning 2.0 spec. This new version is also used by the CMake rules to produce versioned shared objects, including a major-versioned SONAME. New APIs: --------- * `glslang::GetVersion()` returns a `Version` struct with the version major, minor, patch and flavor. Breaking API changes: --------------------- * The public defines `GLSLANG_MINOR_VERSION` and `GLSLANG_PATCH_LEVEL` have been entirely removed. * `glslang/Public/ShaderLang.h` and `glslang/Include/revision.h` have been deleted. * Instead, `<build-dir>/include/glslang/build_info.h` is created in the build directory, and `<build-dir>/include` is a CMake `PUBLIC` (dependee-inherited) include directory for the glslang targets. * `<build-dir>/include/glslang/build_info.h` contains the following new #defines: `GLSLANG_VERSION_MAJOR`, `GLSLANG_VERSION_MINOR`, `GLSLANG_VERSION_PATCH`, `GLSLANG_VERSION_FLAVOR`, `GLSLANG_VERSION_GREATER_THAN(major, minor, patch)`, `GLSLANG_VERSION_GREATER_OR_EQUAL_TO(major, minor, patch)`, `GLSLANG_VERSION_LESS_THAN(major, minor, patch)`, `GLSLANG_VERSION_LESS_OR_EQUAL_TO(major, minor, patch)` * The CMake install output directory contains a copy of `build_info.h` at: `include/glslang/build_info.h` * Python3 is now always required to build glslang (likely always required for transitive dependency builds).
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if(BUILD_EXTERNAL AND IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/External)
find_host_package(Python3 REQUIRED)
Generate build information from CHANGES.md This PR significantly reworks the way glslang is versioned. Instead of committing changes to the `GLSLANG_MINOR_VERSION` define in `glslang/Public/ShaderLang.h`, and using `make-revision` to generate `GLSLANG_PATCH_LEVEL` in `glslang/Include/revision.h`, all version information is now derived from the new `CHANGES.md` file. `CHANGES.md` acts as the single source of truth for glslang version information, along with a convenient place to put all release notes for each notable change made. `CHANGES.md` is parsed using the new `build_info.py` python script. This script can read basic template files to produce new source files, which it does to read the new `build_info.h.tmpl` to generate (at build time) a glslang private header at `<build-dir>/include/glslang/build_info.h`. I've written generators for each of the CMake, Bazel, gn, and `Android.mk` build scripts. The new version code conforms to the Semantic Versioning 2.0 spec. This new version is also used by the CMake rules to produce versioned shared objects, including a major-versioned SONAME. New APIs: --------- * `glslang::GetVersion()` returns a `Version` struct with the version major, minor, patch and flavor. Breaking API changes: --------------------- * The public defines `GLSLANG_MINOR_VERSION` and `GLSLANG_PATCH_LEVEL` have been entirely removed. * `glslang/Public/ShaderLang.h` and `glslang/Include/revision.h` have been deleted. * Instead, `<build-dir>/include/glslang/build_info.h` is created in the build directory, and `<build-dir>/include` is a CMake `PUBLIC` (dependee-inherited) include directory for the glslang targets. * `<build-dir>/include/glslang/build_info.h` contains the following new #defines: `GLSLANG_VERSION_MAJOR`, `GLSLANG_VERSION_MINOR`, `GLSLANG_VERSION_PATCH`, `GLSLANG_VERSION_FLAVOR`, `GLSLANG_VERSION_GREATER_THAN(major, minor, patch)`, `GLSLANG_VERSION_GREATER_OR_EQUAL_TO(major, minor, patch)`, `GLSLANG_VERSION_LESS_THAN(major, minor, patch)`, `GLSLANG_VERSION_LESS_OR_EQUAL_TO(major, minor, patch)` * The CMake install output directory contains a copy of `build_info.h` at: `include/glslang/build_info.h` * Python3 is now always required to build glslang (likely always required for transitive dependency builds).
2020-06-17 10:17:19 +00:00
# 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()
if(ENABLE_OPT)
message(STATUS "optimizer enabled")
add_definitions(-DENABLE_OPT=1)
else()
if(ENABLE_HLSL)
message(STATUS "spirv-tools not linked - illegal SPIRV may be generated for HLSL")
endif()
add_definitions(-DENABLE_OPT=0)
endif()
add_subdirectory(glslang)
add_subdirectory(OGLCompilersDLL)
if(ENABLE_GLSLANG_BINARIES)
add_subdirectory(StandAlone)
endif()
add_subdirectory(SPIRV)
if(ENABLE_HLSL)
add_subdirectory(hlsl)
endif()
if(ENABLE_CTEST)
add_subdirectory(gtests)
endif()
if(ENABLE_CTEST AND BUILD_TESTING)
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# glslang-testsuite runs a bash script on Windows.
# Make sure to use '-o igncr' flag to ignore carriage returns (\r).
set(IGNORE_CR_FLAG "")
if(WIN32)
set(IGNORE_CR_FLAG -o igncr)
endif()
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if (CMAKE_CONFIGURATION_TYPES)
set(RESULTS_PATH ${CMAKE_CURRENT_BINARY_DIR}/$<CONFIG>/localResults)
set(VALIDATOR_PATH ${CMAKE_CURRENT_BINARY_DIR}/StandAlone/$<CONFIG>/glslangValidator)
set(REMAP_PATH ${CMAKE_CURRENT_BINARY_DIR}/StandAlone/$<CONFIG>/spirv-remap)
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()
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@
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@INSTALL_CONFIG_UNIX@
include("@PACKAGE_PATH_EXPORT_TARGETS@")
]=])
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set(PATH_EXPORT_TARGETS "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}/glslang-targets.cmake")
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if(UNIX OR "${CMAKE_SYSTEM_NAME}" STREQUAL "Fuchsia")
set(INSTALL_CONFIG_UNIX [=[
include(CMakeFindDependencyMacro)
set(THREADS_PREFER_PTHREAD_FLAG ON)
find_dependency(Threads REQUIRED)
]=])
endif()
configure_package_config_file(
"${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()