diff --git a/CompileFlags.cmake b/CompileFlags.cmake index 91f2adffe1c0ce0011738bf7f50d8394cd54d894..053259f47c8df022a73ed7e253ce371b9428cc72 100644 --- a/CompileFlags.cmake +++ b/CompileFlags.cmake @@ -54,12 +54,20 @@ if(CMAKE_SYSTEM_PROCESSOR MATCHES "^parisc") endif() # Workaround for TOC Overflow on ppc64 +set(bigTocFlag "") if(CMAKE_SYSTEM_NAME STREQUAL "AIX" AND CMAKE_SYSTEM_PROCESSOR MATCHES "powerpc") - set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-bbigtoc") + set(bigTocFlag "-Wl,-bbigtoc") elseif(CMAKE_SYSTEM_NAME STREQUAL "Linux" AND CMAKE_SYSTEM_PROCESSOR MATCHES "ppc64") - set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--no-multi-toc") + set(bigTocFlag "-Wl,--no-multi-toc") +endif() +if(bigTocFlag) + include(CheckCXXLinkerFlag) + check_cxx_linker_flag(${bigTocFlag} BIG_TOC_FLAG_SUPPORTED) + if(BIG_TOC_FLAG_SUPPORTED) + set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${bigTocFlag}") + endif() endif() if (CMAKE_CXX_COMPILER_ID STREQUAL SunPro AND diff --git a/Source/Modules/CheckCXXLinkerFlag.cmake b/Source/Modules/CheckCXXLinkerFlag.cmake new file mode 100644 index 0000000000000000000000000000000000000000..6cb1ba3ac2947937425b858e697ce4886ae91ef3 --- /dev/null +++ b/Source/Modules/CheckCXXLinkerFlag.cmake @@ -0,0 +1,29 @@ +# Distributed under the OSI-approved BSD 3-Clause License. See accompanying +# file Copyright.txt or https://cmake.org/licensing for details. + +include_guard(GLOBAL) +include(CheckCXXSourceCompiles) +include(CMakeCheckCompilerFlagCommonPatterns) + +function(check_cxx_linker_flag _flag _var) + if(CMAKE_VERSION VERSION_LESS "3.14") + set(CMAKE_REQUIRED_LIBRARIES "${_flag}") + else() + set(CMAKE_REQUIRED_LINK_OPTIONS "${_flag}") + endif() + + # Normalize locale during test compilation. + set(_locale_vars LC_ALL LC_MESSAGES LANG) + foreach(v IN LISTS _locale_vars) + set(_locale_vars_saved_${v} "$ENV{${v}}") + set(ENV{${v}} C) + endforeach() + check_compiler_flag_common_patterns(_common_patterns) + check_cxx_source_compiles("int main() { return 0; }" ${_var} + ${_common_patterns} + ) + foreach(v IN LISTS _locale_vars) + set(ENV{${v}} ${_locale_vars_saved_${v}}) + endforeach() + set(${_var} "${${_var}}" PARENT_SCOPE) +endfunction() diff --git a/Source/cmCommands.cxx b/Source/cmCommands.cxx index 563e0f162a9481093aab858d2e7669ca3252d9cf..896b6a98de7293b7008628c0f77304233535eb50 100644 --- a/Source/cmCommands.cxx +++ b/Source/cmCommands.cxx @@ -78,6 +78,7 @@ #include "cmTargetCompileOptionsCommand.h" #include "cmTargetIncludeDirectoriesCommand.h" #include "cmTargetLinkLibrariesCommand.h" +#include "cmTargetLinkOptionsCommand.h" #include "cmTargetPrecompileHeadersCommand.h" #include "cmTargetSourcesCommand.h" #include "cmTryCompileCommand.h" @@ -107,7 +108,6 @@ # include "cmSourceGroupCommand.h" # include "cmSubdirDependsCommand.h" # include "cmTargetLinkDirectoriesCommand.h" -# include "cmTargetLinkOptionsCommand.h" # include "cmUseMangledMesaCommand.h" # include "cmUtilitySourceCommand.h" # include "cmVariableRequiresCommand.h" @@ -257,6 +257,7 @@ void GetProjectCommands(cmState* state) cmTargetIncludeDirectoriesCommand); state->AddBuiltinCommand("target_link_libraries", cmTargetLinkLibrariesCommand); + state->AddBuiltinCommand("target_link_options", cmTargetLinkOptionsCommand); state->AddBuiltinCommand("target_sources", cmTargetSourcesCommand); state->AddBuiltinCommand("try_compile", cm::make_unique<cmTryCompileCommand>()); @@ -277,7 +278,6 @@ void GetProjectCommands(cmState* state) state->AddBuiltinCommand("install_programs", cmInstallProgramsCommand); state->AddBuiltinCommand("add_link_options", cmAddLinkOptionsCommand); state->AddBuiltinCommand("link_libraries", cmLinkLibrariesCommand); - state->AddBuiltinCommand("target_link_options", cmTargetLinkOptionsCommand); state->AddBuiltinCommand("target_link_directories", cmTargetLinkDirectoriesCommand); state->AddBuiltinCommand("qt_wrap_cpp", cmQTWrapCPPCommand); diff --git a/bootstrap b/bootstrap index 8606dda661a095977c1f10f95c974d91bb4452ae..6e895897b3e49bac1453028ad8488cecc394d060 100755 --- a/bootstrap +++ b/bootstrap @@ -437,6 +437,7 @@ CMAKE_CXX_SOURCES="\ cmTargetCompileOptionsCommand \ cmTargetIncludeDirectoriesCommand \ cmTargetLinkLibrariesCommand \ + cmTargetLinkOptionsCommand \ cmTargetPrecompileHeadersCommand \ cmTargetPropCommandBase \ cmTargetPropertyComputer \