ceph/src/jaegertracing/opentelemetry-cpp/third_party/prometheus-cpp/3rdparty/googletest/googletest/cmake/internal_utils.cmake

   1 # Defines functions and macros useful for building Google Test and
   2 # Google Mock.
   3 #
   4 # Note:
   5 #
   6 # - This file will be run twice when building Google Mock (once via
   7 #   Google Test's CMakeLists.txt, and once via Google Mock's).
   8 #   Therefore it shouldn't have any side effects other than defining
   9 #   the functions and macros.
  10 #
  11 # - The functions/macros defined in this file may depend on Google
  12 #   Test and Google Mock's option() definitions, and thus must be
  13 #   called *after* the options have been defined.
  14
  15 if (POLICY CMP0054)
  16   cmake_policy(SET CMP0054 NEW)
  17 endif (POLICY CMP0054)
  18
  19 # Tweaks CMake's default compiler/linker settings to suit Google Test's needs.
  20 #
  21 # This must be a macro(), as inside a function string() can only
  22 # update variables in the function scope.
  23 macro(fix_default_compiler_settings_)
  24   if (MSVC)
  25     # For MSVC, CMake sets certain flags to defaults we want to override.
  26     # This replacement code is taken from sample in the CMake Wiki at
  27     # https://gitlab.kitware.com/cmake/community/wikis/FAQ#dynamic-replace.
  28     foreach (flag_var
  29              CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
  30              CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
  31              CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
  32              CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
  33       if (NOT BUILD_SHARED_LIBS AND NOT gtest_force_shared_crt)
  34         # When Google Test is built as a shared library, it should also use
  35         # shared runtime libraries.  Otherwise, it may end up with multiple
  36         # copies of runtime library data in different modules, resulting in
  37         # hard-to-find crashes. When it is built as a static library, it is
  38         # preferable to use CRT as static libraries, as we don't have to rely
  39         # on CRT DLLs being available. CMake always defaults to using shared
  40         # CRT libraries, so we override that default here.
  41         string(REPLACE "/MD" "-MT" ${flag_var} "${${flag_var}}")
  42       endif()
  43
  44       # We prefer more strict warning checking for building Google Test.
  45       # Replaces /W3 with /W4 in defaults.
  46       string(REPLACE "/W3" "/W4" ${flag_var} "${${flag_var}}")
  47
  48       # Prevent D9025 warning for targets that have exception handling
  49       # turned off (/EHs-c- flag). Where required, exceptions are explicitly
  50       # re-enabled using the cxx_exception_flags variable.
  51       string(REPLACE "/EHsc" "" ${flag_var} "${${flag_var}}")
  52     endforeach()
  53   endif()
  54 endmacro()
  55
  56 # Defines the compiler/linker flags used to build Google Test and
  57 # Google Mock.  You can tweak these definitions to suit your need.  A
  58 # variable's value is empty before it's explicitly assigned to.
  59 macro(config_compiler_and_linker)
  60   # Note: pthreads on MinGW is not supported, even if available
  61   # instead, we use windows threading primitives
  62   unset(GTEST_HAS_PTHREAD)
  63   if (NOT gtest_disable_pthreads AND NOT MINGW)
  64     # Defines CMAKE_USE_PTHREADS_INIT and CMAKE_THREAD_LIBS_INIT.
  65     find_package(Threads)
  66     if (CMAKE_USE_PTHREADS_INIT)
  67       set(GTEST_HAS_PTHREAD ON)
  68     endif()
  69   endif()
  70
  71   fix_default_compiler_settings_()
  72   if (MSVC)
  73     # Newlines inside flags variables break CMake's NMake generator.
  74     # TODO(vladl@google.com): Add -RTCs and -RTCu to debug builds.
  75     set(cxx_base_flags "-GS -W4 -WX -wd4251 -wd4275 -nologo -J")
  76     set(cxx_base_flags "${cxx_base_flags} -D_UNICODE -DUNICODE -DWIN32 -D_WIN32")
  77     set(cxx_base_flags "${cxx_base_flags} -DSTRICT -DWIN32_LEAN_AND_MEAN")
  78     set(cxx_exception_flags "-EHsc -D_HAS_EXCEPTIONS=1")
  79     set(cxx_no_exception_flags "-EHs-c- -D_HAS_EXCEPTIONS=0")
  80     set(cxx_no_rtti_flags "-GR-")
  81     # Suppress "unreachable code" warning
  82     # http://stackoverflow.com/questions/3232669 explains the issue.
  83     set(cxx_base_flags "${cxx_base_flags} -wd4702")
  84     # Ensure MSVC treats source files as UTF-8 encoded.
  85     set(cxx_base_flags "${cxx_base_flags} -utf-8")
  86   elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
  87     set(cxx_base_flags "-Wall -Wshadow -Werror -Wconversion")
  88     set(cxx_exception_flags "-fexceptions")
  89     set(cxx_no_exception_flags "-fno-exceptions")
  90     set(cxx_strict_flags "-W -Wpointer-arith -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wunused-parameter -Wcast-align -Wchar-subscripts -Winline -Wredundant-decls")
  91     set(cxx_no_rtti_flags "-fno-rtti")
  92   elseif (CMAKE_COMPILER_IS_GNUCXX)
  93     set(cxx_base_flags "-Wall -Wshadow -Werror")
  94     if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 7.0.0)
  95       set(cxx_base_flags "${cxx_base_flags} -Wno-error=dangling-else")
  96     endif()
  97     set(cxx_exception_flags "-fexceptions")
  98     set(cxx_no_exception_flags "-fno-exceptions")
  99     # Until version 4.3.2, GCC doesn't define a macro to indicate
 100     # whether RTTI is enabled.  Therefore we define GTEST_HAS_RTTI
 101     # explicitly.
 102     set(cxx_no_rtti_flags "-fno-rtti -DGTEST_HAS_RTTI=0")
 103     set(cxx_strict_flags
 104       "-Wextra -Wno-unused-parameter -Wno-missing-field-initializers")
 105   elseif (CMAKE_CXX_COMPILER_ID STREQUAL "SunPro")
 106     set(cxx_exception_flags "-features=except")
 107     # Sun Pro doesn't provide macros to indicate whether exceptions and
 108     # RTTI are enabled, so we define GTEST_HAS_* explicitly.
 109     set(cxx_no_exception_flags "-features=no%except -DGTEST_HAS_EXCEPTIONS=0")
 110     set(cxx_no_rtti_flags "-features=no%rtti -DGTEST_HAS_RTTI=0")
 111   elseif (CMAKE_CXX_COMPILER_ID STREQUAL "VisualAge" OR
 112       CMAKE_CXX_COMPILER_ID STREQUAL "XL")
 113     # CMake 2.8 changes Visual Age's compiler ID to "XL".
 114     set(cxx_exception_flags "-qeh")
 115     set(cxx_no_exception_flags "-qnoeh")
 116     # Until version 9.0, Visual Age doesn't define a macro to indicate
 117     # whether RTTI is enabled.  Therefore we define GTEST_HAS_RTTI
 118     # explicitly.
 119     set(cxx_no_rtti_flags "-qnortti -DGTEST_HAS_RTTI=0")
 120   elseif (CMAKE_CXX_COMPILER_ID STREQUAL "HP")
 121     set(cxx_base_flags "-AA -mt")
 122     set(cxx_exception_flags "-DGTEST_HAS_EXCEPTIONS=1")
 123     set(cxx_no_exception_flags "+noeh -DGTEST_HAS_EXCEPTIONS=0")
 124     # RTTI can not be disabled in HP aCC compiler.
 125     set(cxx_no_rtti_flags "")
 126   endif()
 127
 128   # The pthreads library is available and allowed?
 129   if (DEFINED GTEST_HAS_PTHREAD)
 130     set(GTEST_HAS_PTHREAD_MACRO "-DGTEST_HAS_PTHREAD=1")
 131   else()
 132     set(GTEST_HAS_PTHREAD_MACRO "-DGTEST_HAS_PTHREAD=0")
 133   endif()
 134   set(cxx_base_flags "${cxx_base_flags} ${GTEST_HAS_PTHREAD_MACRO}")
 135
 136   # For building gtest's own tests and samples.
 137   set(cxx_exception "${cxx_base_flags} ${cxx_exception_flags}")
 138   set(cxx_no_exception
 139     "${CMAKE_CXX_FLAGS} ${cxx_base_flags} ${cxx_no_exception_flags}")
 140   set(cxx_default "${cxx_exception}")
 141   set(cxx_no_rtti "${cxx_default} ${cxx_no_rtti_flags}")
 142
 143   # For building the gtest libraries.
 144   set(cxx_strict "${cxx_default} ${cxx_strict_flags}")
 145 endmacro()
 146
 147 # Defines the gtest & gtest_main libraries.  User tests should link
 148 # with one of them.
 149 function(cxx_library_with_type name type cxx_flags)
 150   # type can be either STATIC or SHARED to denote a static or shared library.
 151   # ARGN refers to additional arguments after 'cxx_flags'.
 152   add_library(${name} ${type} ${ARGN})
 153   add_library(${cmake_package_name}::${name} ALIAS ${name})
 154   set_target_properties(${name}
 155     PROPERTIES
 156     COMPILE_FLAGS "${cxx_flags}")
 157   # Generate debug library name with a postfix.
 158   set_target_properties(${name}
 159     PROPERTIES
 160     DEBUG_POSTFIX "d")
 161   # Set the output directory for build artifacts
 162   set_target_properties(${name}
 163     PROPERTIES
 164     RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin"
 165     LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib"
 166     ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib"
 167     PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin")
 168   # make PDBs match library name
 169   get_target_property(pdb_debug_postfix ${name} DEBUG_POSTFIX)
 170   set_target_properties(${name}
 171     PROPERTIES
 172     PDB_NAME "${name}"
 173     PDB_NAME_DEBUG "${name}${pdb_debug_postfix}"
 174     COMPILE_PDB_NAME "${name}"
 175     COMPILE_PDB_NAME_DEBUG "${name}${pdb_debug_postfix}")
 176
 177   if (BUILD_SHARED_LIBS OR type STREQUAL "SHARED")
 178     set_target_properties(${name}
 179       PROPERTIES
 180       COMPILE_DEFINITIONS "GTEST_CREATE_SHARED_LIBRARY=1")
 181     if (NOT "${CMAKE_VERSION}" VERSION_LESS "2.8.11")
 182       target_compile_definitions(${name} INTERFACE
 183         $<INSTALL_INTERFACE:GTEST_LINKED_AS_SHARED_LIBRARY=1>)
 184     endif()
 185   endif()
 186   if (DEFINED GTEST_HAS_PTHREAD)
 187     if ("${CMAKE_VERSION}" VERSION_LESS "3.1.0")
 188       set(threads_spec ${CMAKE_THREAD_LIBS_INIT})
 189     else()
 190       set(threads_spec Threads::Threads)
 191     endif()
 192     target_link_libraries(${name} PUBLIC ${threads_spec})
 193   endif()
 194
 195   if (NOT "${CMAKE_VERSION}" VERSION_LESS "3.8")
 196     target_compile_features(${name} PUBLIC cxx_std_11)
 197   endif()
 198 endfunction()
 199
 200 ########################################################################
 201 #
 202 # Helper functions for creating build targets.
 203
 204 function(cxx_shared_library name cxx_flags)
 205   cxx_library_with_type(${name} SHARED "${cxx_flags}" ${ARGN})
 206 endfunction()
 207
 208 function(cxx_library name cxx_flags)
 209   cxx_library_with_type(${name} "" "${cxx_flags}" ${ARGN})
 210 endfunction()
 211
 212 # cxx_executable_with_flags(name cxx_flags libs srcs...)
 213 #
 214 # creates a named C++ executable that depends on the given libraries and
 215 # is built from the given source files with the given compiler flags.
 216 function(cxx_executable_with_flags name cxx_flags libs)
 217   add_executable(${name} ${ARGN})
 218   if (MSVC)
 219     # BigObj required for tests.
 220     set(cxx_flags "${cxx_flags} -bigobj")
 221   endif()
 222   if (cxx_flags)
 223     set_target_properties(${name}
 224       PROPERTIES
 225       COMPILE_FLAGS "${cxx_flags}")
 226   endif()
 227   if (BUILD_SHARED_LIBS)
 228     set_target_properties(${name}
 229       PROPERTIES
 230       COMPILE_DEFINITIONS "GTEST_LINKED_AS_SHARED_LIBRARY=1")
 231   endif()
 232   # To support mixing linking in static and dynamic libraries, link each
 233   # library in with an extra call to target_link_libraries.
 234   foreach (lib "${libs}")
 235     target_link_libraries(${name} ${lib})
 236   endforeach()
 237 endfunction()
 238
 239 # cxx_executable(name dir lib srcs...)
 240 #
 241 # creates a named target that depends on the given libs and is built
 242 # from the given source files.  dir/name.cc is implicitly included in
 243 # the source file list.
 244 function(cxx_executable name dir libs)
 245   cxx_executable_with_flags(
 246     ${name} "${cxx_default}" "${libs}" "${dir}/${name}.cc" ${ARGN})
 247 endfunction()
 248
 249 # Sets PYTHONINTERP_FOUND and PYTHON_EXECUTABLE.
 250 if ("${CMAKE_VERSION}" VERSION_LESS "3.12.0")
 251   find_package(PythonInterp)
 252 else()
 253   find_package(Python COMPONENTS Interpreter)
 254   set(PYTHONINTERP_FOUND ${Python_Interpreter_FOUND})
 255   set(PYTHON_EXECUTABLE ${Python_EXECUTABLE})
 256 endif()
 257
 258 # cxx_test_with_flags(name cxx_flags libs srcs...)
 259 #
 260 # creates a named C++ test that depends on the given libs and is built
 261 # from the given source files with the given compiler flags.
 262 function(cxx_test_with_flags name cxx_flags libs)
 263   cxx_executable_with_flags(${name} "${cxx_flags}" "${libs}" ${ARGN})
 264     add_test(NAME ${name} COMMAND "$<TARGET_FILE:${name}>")
 265 endfunction()
 266
 267 # cxx_test(name libs srcs...)
 268 #
 269 # creates a named test target that depends on the given libs and is
 270 # built from the given source files.  Unlike cxx_test_with_flags,
 271 # test/name.cc is already implicitly included in the source file list.
 272 function(cxx_test name libs)
 273   cxx_test_with_flags("${name}" "${cxx_default}" "${libs}"
 274     "test/${name}.cc" ${ARGN})
 275 endfunction()
 276
 277 # py_test(name)
 278 #
 279 # creates a Python test with the given name whose main module is in
 280 # test/name.py.  It does nothing if Python is not installed.
 281 function(py_test name)
 282   if (PYTHONINTERP_FOUND)
 283     if ("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" VERSION_GREATER 3.1)
 284       if (CMAKE_CONFIGURATION_TYPES)
 285         # Multi-configuration build generators as for Visual Studio save
 286         # output in a subdirectory of CMAKE_CURRENT_BINARY_DIR (Debug,
 287         # Release etc.), so we have to provide it here.
 288         add_test(NAME ${name}
 289           COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/test/${name}.py
 290               --build_dir=${CMAKE_CURRENT_BINARY_DIR}/$<CONFIG> ${ARGN})
 291       else (CMAKE_CONFIGURATION_TYPES)
 292         # Single-configuration build generators like Makefile generators
 293         # don't have subdirs below CMAKE_CURRENT_BINARY_DIR.
 294         add_test(NAME ${name}
 295           COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/test/${name}.py
 296             --build_dir=${CMAKE_CURRENT_BINARY_DIR} ${ARGN})
 297       endif (CMAKE_CONFIGURATION_TYPES)
 298     else()
 299       # ${CMAKE_CURRENT_BINARY_DIR} is known at configuration time, so we can
 300       # directly bind it from cmake. ${CTEST_CONFIGURATION_TYPE} is known
 301       # only at ctest runtime (by calling ctest -c <Configuration>), so
 302       # we have to escape $ to delay variable substitution here.
 303       add_test(NAME ${name}
 304         COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/test/${name}.py
 305           --build_dir=${CMAKE_CURRENT_BINARY_DIR}/\${CTEST_CONFIGURATION_TYPE} ${ARGN})
 306     endif()
 307   endif(PYTHONINTERP_FOUND)
 308 endfunction()
 309
 310 # install_project(targets...)
 311 #
 312 # Installs the specified targets and configures the associated pkgconfig files.
 313 function(install_project)
 314   if(INSTALL_GTEST)
 315     install(DIRECTORY "${PROJECT_SOURCE_DIR}/include/"
 316       DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
 317     # Install the project targets.
 318     install(TARGETS ${ARGN}
 319       EXPORT ${targets_export_name}
 320       RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
 321       ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
 322       LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}")
 323     if(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
 324       # Install PDBs
 325       foreach(t ${ARGN})
 326         get_target_property(t_pdb_name ${t} COMPILE_PDB_NAME)
 327         get_target_property(t_pdb_name_debug ${t} COMPILE_PDB_NAME_DEBUG)
 328         get_target_property(t_pdb_output_directory ${t} PDB_OUTPUT_DIRECTORY)
 329         install(FILES
 330           "${t_pdb_output_directory}/\${CMAKE_INSTALL_CONFIG_NAME}/$<$<CONFIG:Debug>:${t_pdb_name_debug}>$<$<NOT:$<CONFIG:Debug>>:${t_pdb_name}>.pdb"
 331           DESTINATION ${CMAKE_INSTALL_LIBDIR}
 332           OPTIONAL)
 333       endforeach()
 334     endif()
 335     # Configure and install pkgconfig files.
 336     foreach(t ${ARGN})
 337       set(configured_pc "${generated_dir}/${t}.pc")
 338       configure_file("${PROJECT_SOURCE_DIR}/cmake/${t}.pc.in"
 339         "${configured_pc}" @ONLY)
 340       install(FILES "${configured_pc}"
 341         DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
 342     endforeach()
 343   endif()
 344 endfunction()