From c13408279f035c8261b530e26040cf4b8f01fdab Mon Sep 17 00:00:00 2001 From: Brad King Date: Tue, 24 May 2016 11:39:25 -0400 Subject: Add a variable to specify language-wide system include directories Create a `CMAKE__STANDARD_INCLUDE_DIRECTORIES` variable to specify system include directories for for `` compiler command lines. This plays a role for include directories as the existing `CMAKE__STANDARD_LIBRARIES` variable does for link libraries. --- Help/manual/cmake-variables.7.rst | 1 + Help/release/dev/standard-include-directories.rst | 6 ++++++ .../CMAKE_LANG_STANDARD_INCLUDE_DIRECTORIES.rst | 14 ++++++++++++++ Help/variable/CMAKE_LANG_STANDARD_LIBRARIES.rst | 2 ++ Source/cmGeneratorTarget.cxx | 12 ++++++++++++ Source/cmGlobalGenerator.cxx | 20 ++++++++++++++++++++ Tests/IncludeDirectories/CMakeLists.txt | 1 + .../StandardIncludeDirectories/CMakeLists.txt | 5 +++++ .../StandardIncludeDirectories/StdDir/StdIncDir.h | 0 .../StandardIncludeDirectories/main.c | 5 +++++ 10 files changed, 66 insertions(+) create mode 100644 Help/release/dev/standard-include-directories.rst create mode 100644 Help/variable/CMAKE_LANG_STANDARD_INCLUDE_DIRECTORIES.rst create mode 100644 Tests/IncludeDirectories/StandardIncludeDirectories/CMakeLists.txt create mode 100644 Tests/IncludeDirectories/StandardIncludeDirectories/StdDir/StdIncDir.h create mode 100644 Tests/IncludeDirectories/StandardIncludeDirectories/main.c diff --git a/Help/manual/cmake-variables.7.rst b/Help/manual/cmake-variables.7.rst index 925b70c..b8c8bea 100644 --- a/Help/manual/cmake-variables.7.rst +++ b/Help/manual/cmake-variables.7.rst @@ -365,6 +365,7 @@ Variables for Languages /variable/CMAKE_LANG_SIMULATE_VERSION /variable/CMAKE_LANG_SIZEOF_DATA_PTR /variable/CMAKE_LANG_SOURCE_FILE_EXTENSIONS + /variable/CMAKE_LANG_STANDARD_INCLUDE_DIRECTORIES /variable/CMAKE_LANG_STANDARD_LIBRARIES /variable/CMAKE_USER_MAKE_RULES_OVERRIDE_LANG diff --git a/Help/release/dev/standard-include-directories.rst b/Help/release/dev/standard-include-directories.rst new file mode 100644 index 0000000..a03d7db --- /dev/null +++ b/Help/release/dev/standard-include-directories.rst @@ -0,0 +1,6 @@ +standard-include-directories +---------------------------- + +* A :variable:`CMAKE__STANDARD_INCLUDE_DIRECTORIES` variable was + added for use by toolchain files to specify system include directories + to be appended to all compiler command lines. diff --git a/Help/variable/CMAKE_LANG_STANDARD_INCLUDE_DIRECTORIES.rst b/Help/variable/CMAKE_LANG_STANDARD_INCLUDE_DIRECTORIES.rst new file mode 100644 index 0000000..c8e3d57 --- /dev/null +++ b/Help/variable/CMAKE_LANG_STANDARD_INCLUDE_DIRECTORIES.rst @@ -0,0 +1,14 @@ +CMAKE__STANDARD_INCLUDE_DIRECTORIES +----------------------------------------- + +Include directories to be used for every source file compiled with +the ```` compiler. This is meant for specification of system +include directories needed by the language for the current platform. +The directories always appear at the end of the include path passed +to the compiler. + +This variable should not be set by project code. It is meant to be set by +CMake's platform information modules for the current toolchain, or by a +toolchain file when used with :variable:`CMAKE_TOOLCHAIN_FILE`. + +See also :variable:`CMAKE__STANDARD_LIBRARIES`. diff --git a/Help/variable/CMAKE_LANG_STANDARD_LIBRARIES.rst b/Help/variable/CMAKE_LANG_STANDARD_LIBRARIES.rst index ad3b911..ba6df93 100644 --- a/Help/variable/CMAKE_LANG_STANDARD_LIBRARIES.rst +++ b/Help/variable/CMAKE_LANG_STANDARD_LIBRARIES.rst @@ -8,3 +8,5 @@ libraries needed by the language for the current platform. This variable should not be set by project code. It is meant to be set by CMake's platform information modules for the current toolchain, or by a toolchain file when used with :variable:`CMAKE_TOOLCHAIN_FILE`. + +See also :variable:`CMAKE__STANDARD_INCLUDE_DIRECTORIES`. diff --git a/Source/cmGeneratorTarget.cxx b/Source/cmGeneratorTarget.cxx index 31fff9f..8859172 100644 --- a/Source/cmGeneratorTarget.cxx +++ b/Source/cmGeneratorTarget.cxx @@ -2415,6 +2415,18 @@ std::vector cmGeneratorTarget::GetIncludeDirectories( cmDeleteAll(linkInterfaceIncludeDirectoriesEntries); + // Add standard include directories for this language. + std::string const standardIncludesVar = + "CMAKE_" + lang + "_STANDARD_INCLUDE_DIRECTORIES"; + std::string const standardIncludes = + this->Makefile->GetSafeDefinition(standardIncludesVar); + std::vector::size_type const before = includes.size(); + cmSystemTools::ExpandListArgument(standardIncludes, includes); + for (std::vector::iterator i = includes.begin() + before; + i != includes.end(); ++i) { + cmSystemTools::ConvertToUnixSlashes(*i); + } + return includes; } diff --git a/Source/cmGlobalGenerator.cxx b/Source/cmGlobalGenerator.cxx index 3f4c22f..ea2842f 100644 --- a/Source/cmGlobalGenerator.cxx +++ b/Source/cmGlobalGenerator.cxx @@ -1385,6 +1385,9 @@ cmGlobalGenerator::CreateQtAutoGeneratorsTargets() void cmGlobalGenerator::FinalizeTargetCompileInfo() { + std::vector const langs = + this->CMakeInstance->GetState()->GetEnabledLanguages(); + // Construct per-target generator information. for (unsigned int i = 0; i < this->Makefiles.size(); ++i) { cmMakefile* mf = this->Makefiles[i]; @@ -1429,6 +1432,23 @@ void cmGlobalGenerator::FinalizeTargetCompileInfo() } } } + + // The standard include directories for each language + // should be treated as system include directories. + std::set standardIncludesSet; + for (std::vector::const_iterator li = langs.begin(); + li != langs.end(); ++li) { + std::string const standardIncludesVar = + "CMAKE_" + *li + "_STANDARD_INCLUDE_DIRECTORIES"; + std::string const standardIncludesStr = + mf->GetSafeDefinition(standardIncludesVar); + std::vector standardIncludesVec; + cmSystemTools::ExpandListArgument(standardIncludesStr, + standardIncludesVec); + standardIncludesSet.insert(standardIncludesVec.begin(), + standardIncludesVec.end()); + } + mf->AddSystemIncludeDirectories(standardIncludesSet); } } diff --git a/Tests/IncludeDirectories/CMakeLists.txt b/Tests/IncludeDirectories/CMakeLists.txt index 9ee1957..523c4f7 100644 --- a/Tests/IncludeDirectories/CMakeLists.txt +++ b/Tests/IncludeDirectories/CMakeLists.txt @@ -63,6 +63,7 @@ else() PROPERTIES COMPILE_FLAGS "-ITarProp") endif() +add_subdirectory(StandardIncludeDirectories) add_subdirectory(TargetIncludeDirectories) set_property(DIRECTORY PROPERTY INCLUDE_DIRECTORIES "${CMAKE_BINARY_DIR}") diff --git a/Tests/IncludeDirectories/StandardIncludeDirectories/CMakeLists.txt b/Tests/IncludeDirectories/StandardIncludeDirectories/CMakeLists.txt new file mode 100644 index 0000000..dcbc566 --- /dev/null +++ b/Tests/IncludeDirectories/StandardIncludeDirectories/CMakeLists.txt @@ -0,0 +1,5 @@ +# Normally this variable should be set by a platform information module or +# a toolchain file, but for purposes of this test we simply set it here. +set(CMAKE_C_STANDARD_INCLUDE_DIRECTORIES ${CMAKE_CURRENT_SOURCE_DIR}/StdDir) + +add_executable(StandardIncludeDirectories main.c) diff --git a/Tests/IncludeDirectories/StandardIncludeDirectories/StdDir/StdIncDir.h b/Tests/IncludeDirectories/StandardIncludeDirectories/StdDir/StdIncDir.h new file mode 100644 index 0000000..e69de29 diff --git a/Tests/IncludeDirectories/StandardIncludeDirectories/main.c b/Tests/IncludeDirectories/StandardIncludeDirectories/main.c new file mode 100644 index 0000000..edfe9ce --- /dev/null +++ b/Tests/IncludeDirectories/StandardIncludeDirectories/main.c @@ -0,0 +1,5 @@ +#include "StdIncDir.h" +int main() +{ + return 0; +} -- cgit v0.12