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comparison: media/webrtc/trunk/testing/gtest/cmake/internal_utils.cmake
media/webrtc/trunk/testing/gtest/cmake/internal_utils.cmake
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- changeset 9
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| -1:000000000000 | 0:e9e190fe69aa |
|---|---|
| 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 # Tweaks CMake's default compiler/linker settings to suit Google Test's needs. | |
| 16 # | |
| 17 # This must be a macro(), as inside a function string() can only | |
| 18 # update variables in the function scope. | |
| 19 macro(fix_default_compiler_settings_) | |
| 20 if (MSVC) | |
| 21 # For MSVC, CMake sets certain flags to defaults we want to override. | |
| 22 # This replacement code is taken from sample in the CMake Wiki at | |
| 23 # http://www.cmake.org/Wiki/CMake_FAQ#Dynamic_Replace. | |
| 24 foreach (flag_var | |
| 25 CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE | |
| 26 CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO) | |
| 27 if (NOT BUILD_SHARED_LIBS AND NOT gtest_force_shared_crt) | |
| 28 # When Google Test is built as a shared library, it should also use | |
| 29 # shared runtime libraries. Otherwise, it may end up with multiple | |
| 30 # copies of runtime library data in different modules, resulting in | |
| 31 # hard-to-find crashes. When it is built as a static library, it is | |
| 32 # preferable to use CRT as static libraries, as we don't have to rely | |
| 33 # on CRT DLLs being available. CMake always defaults to using shared | |
| 34 # CRT libraries, so we override that default here. | |
| 35 string(REPLACE "/MD" "-MT" ${flag_var} "${${flag_var}}") | |
| 36 endif() | |
| 37 | |
| 38 # We prefer more strict warning checking for building Google Test. | |
| 39 # Replaces /W3 with /W4 in defaults. | |
| 40 string(REPLACE "/W3" "-W4" ${flag_var} "${${flag_var}}") | |
| 41 endforeach() | |
| 42 endif() | |
| 43 endmacro() | |
| 44 | |
| 45 # Defines the compiler/linker flags used to build Google Test and | |
| 46 # Google Mock. You can tweak these definitions to suit your need. A | |
| 47 # variable's value is empty before it's explicitly assigned to. | |
| 48 macro(config_compiler_and_linker) | |
| 49 if (NOT gtest_disable_pthreads) | |
| 50 # Defines CMAKE_USE_PTHREADS_INIT and CMAKE_THREAD_LIBS_INIT. | |
| 51 find_package(Threads) | |
| 52 endif() | |
| 53 | |
| 54 fix_default_compiler_settings_() | |
| 55 if (MSVC) | |
| 56 # Newlines inside flags variables break CMake's NMake generator. | |
| 57 # TODO(vladl@google.com): Add -RTCs and -RTCu to debug builds. | |
| 58 set(cxx_base_flags "-GS -W4 -WX -wd4127 -wd4251 -wd4275 -nologo -J -Zi") | |
| 59 if (MSVC_VERSION LESS 1400) | |
| 60 # Suppress spurious warnings MSVC 7.1 sometimes issues. | |
| 61 # Forcing value to bool. | |
| 62 set(cxx_base_flags "${cxx_base_flags} -wd4800") | |
| 63 # Copy constructor and assignment operator could not be generated. | |
| 64 set(cxx_base_flags "${cxx_base_flags} -wd4511 -wd4512") | |
| 65 # Compatibility warnings not applicable to Google Test. | |
| 66 # Resolved overload was found by argument-dependent lookup. | |
| 67 set(cxx_base_flags "${cxx_base_flags} -wd4675") | |
| 68 endif() | |
| 69 set(cxx_base_flags "${cxx_base_flags} -D_UNICODE -DUNICODE -DWIN32 -D_WIN32") | |
| 70 set(cxx_base_flags "${cxx_base_flags} -DSTRICT -DWIN32_LEAN_AND_MEAN") | |
| 71 set(cxx_exception_flags "-EHsc -D_HAS_EXCEPTIONS=1") | |
| 72 set(cxx_no_exception_flags "-D_HAS_EXCEPTIONS=0") | |
| 73 set(cxx_no_rtti_flags "-GR-") | |
| 74 elseif (CMAKE_COMPILER_IS_GNUCXX) | |
| 75 set(cxx_base_flags "-Wall -Wshadow") | |
| 76 set(cxx_exception_flags "-fexceptions") | |
| 77 set(cxx_no_exception_flags "-fno-exceptions") | |
| 78 # Until version 4.3.2, GCC doesn't define a macro to indicate | |
| 79 # whether RTTI is enabled. Therefore we define GTEST_HAS_RTTI | |
| 80 # explicitly. | |
| 81 set(cxx_no_rtti_flags "-fno-rtti -DGTEST_HAS_RTTI=0") | |
| 82 set(cxx_strict_flags | |
| 83 "-Wextra -Wno-unused-parameter -Wno-missing-field-initializers") | |
| 84 elseif (CMAKE_CXX_COMPILER_ID STREQUAL "SunPro") | |
| 85 set(cxx_exception_flags "-features=except") | |
| 86 # Sun Pro doesn't provide macros to indicate whether exceptions and | |
| 87 # RTTI are enabled, so we define GTEST_HAS_* explicitly. | |
| 88 set(cxx_no_exception_flags "-features=no%except -DGTEST_HAS_EXCEPTIONS=0") | |
| 89 set(cxx_no_rtti_flags "-features=no%rtti -DGTEST_HAS_RTTI=0") | |
| 90 elseif (CMAKE_CXX_COMPILER_ID STREQUAL "VisualAge" OR | |
| 91 CMAKE_CXX_COMPILER_ID STREQUAL "XL") | |
| 92 # CMake 2.8 changes Visual Age's compiler ID to "XL". | |
| 93 set(cxx_exception_flags "-qeh") | |
| 94 set(cxx_no_exception_flags "-qnoeh") | |
| 95 # Until version 9.0, Visual Age doesn't define a macro to indicate | |
| 96 # whether RTTI is enabled. Therefore we define GTEST_HAS_RTTI | |
| 97 # explicitly. | |
| 98 set(cxx_no_rtti_flags "-qnortti -DGTEST_HAS_RTTI=0") | |
| 99 elseif (CMAKE_CXX_COMPILER_ID STREQUAL "HP") | |
| 100 set(cxx_base_flags "-AA -mt") | |
| 101 set(cxx_exception_flags "-DGTEST_HAS_EXCEPTIONS=1") | |
| 102 set(cxx_no_exception_flags "+noeh -DGTEST_HAS_EXCEPTIONS=0") | |
| 103 # RTTI can not be disabled in HP aCC compiler. | |
| 104 set(cxx_no_rtti_flags "") | |
| 105 endif() | |
| 106 | |
| 107 if (CMAKE_USE_PTHREADS_INIT) # The pthreads library is available and allowed. | |
| 108 set(cxx_base_flags "${cxx_base_flags} -DGTEST_HAS_PTHREAD=1") | |
| 109 else() | |
| 110 set(cxx_base_flags "${cxx_base_flags} -DGTEST_HAS_PTHREAD=0") | |
| 111 endif() | |
| 112 | |
| 113 # For building gtest's own tests and samples. | |
| 114 set(cxx_exception "${CMAKE_CXX_FLAGS} ${cxx_base_flags} ${cxx_exception_flags}") | |
| 115 set(cxx_no_exception | |
| 116 "${CMAKE_CXX_FLAGS} ${cxx_base_flags} ${cxx_no_exception_flags}") | |
| 117 set(cxx_default "${cxx_exception}") | |
| 118 set(cxx_no_rtti "${cxx_default} ${cxx_no_rtti_flags}") | |
| 119 set(cxx_use_own_tuple "${cxx_default} -DGTEST_USE_OWN_TR1_TUPLE=1") | |
| 120 | |
| 121 # For building the gtest libraries. | |
| 122 set(cxx_strict "${cxx_default} ${cxx_strict_flags}") | |
| 123 endmacro() | |
| 124 | |
| 125 # Defines the gtest & gtest_main libraries. User tests should link | |
| 126 # with one of them. | |
| 127 function(cxx_library_with_type name type cxx_flags) | |
| 128 # type can be either STATIC or SHARED to denote a static or shared library. | |
| 129 # ARGN refers to additional arguments after 'cxx_flags'. | |
| 130 add_library(${name} ${type} ${ARGN}) | |
| 131 set_target_properties(${name} | |
| 132 PROPERTIES | |
| 133 COMPILE_FLAGS "${cxx_flags}") | |
| 134 if (BUILD_SHARED_LIBS OR type STREQUAL "SHARED") | |
| 135 set_target_properties(${name} | |
| 136 PROPERTIES | |
| 137 COMPILE_DEFINITIONS "GTEST_CREATE_SHARED_LIBRARY=1") | |
| 138 endif() | |
| 139 if (CMAKE_USE_PTHREADS_INIT) | |
| 140 target_link_libraries(${name} ${CMAKE_THREAD_LIBS_INIT}) | |
| 141 endif() | |
| 142 endfunction() | |
| 143 | |
| 144 ######################################################################## | |
| 145 # | |
| 146 # Helper functions for creating build targets. | |
| 147 | |
| 148 function(cxx_shared_library name cxx_flags) | |
| 149 cxx_library_with_type(${name} SHARED "${cxx_flags}" ${ARGN}) | |
| 150 endfunction() | |
| 151 | |
| 152 function(cxx_library name cxx_flags) | |
| 153 cxx_library_with_type(${name} "" "${cxx_flags}" ${ARGN}) | |
| 154 endfunction() | |
| 155 | |
| 156 # cxx_executable_with_flags(name cxx_flags libs srcs...) | |
| 157 # | |
| 158 # creates a named C++ executable that depends on the given libraries and | |
| 159 # is built from the given source files with the given compiler flags. | |
| 160 function(cxx_executable_with_flags name cxx_flags libs) | |
| 161 add_executable(${name} ${ARGN}) | |
| 162 if (cxx_flags) | |
| 163 set_target_properties(${name} | |
| 164 PROPERTIES | |
| 165 COMPILE_FLAGS "${cxx_flags}") | |
| 166 endif() | |
| 167 if (BUILD_SHARED_LIBS) | |
| 168 set_target_properties(${name} | |
| 169 PROPERTIES | |
| 170 COMPILE_DEFINITIONS "GTEST_LINKED_AS_SHARED_LIBRARY=1") | |
| 171 endif() | |
| 172 # To support mixing linking in static and dynamic libraries, link each | |
| 173 # library in with an extra call to target_link_libraries. | |
| 174 foreach (lib "${libs}") | |
| 175 target_link_libraries(${name} ${lib}) | |
| 176 endforeach() | |
| 177 endfunction() | |
| 178 | |
| 179 # cxx_executable(name dir lib srcs...) | |
| 180 # | |
| 181 # creates a named target that depends on the given libs and is built | |
| 182 # from the given source files. dir/name.cc is implicitly included in | |
| 183 # the source file list. | |
| 184 function(cxx_executable name dir libs) | |
| 185 cxx_executable_with_flags( | |
| 186 ${name} "${cxx_default}" "${libs}" "${dir}/${name}.cc" ${ARGN}) | |
| 187 endfunction() | |
| 188 | |
| 189 # Sets PYTHONINTERP_FOUND and PYTHON_EXECUTABLE. | |
| 190 find_package(PythonInterp) | |
| 191 | |
| 192 # cxx_test_with_flags(name cxx_flags libs srcs...) | |
| 193 # | |
| 194 # creates a named C++ test that depends on the given libs and is built | |
| 195 # from the given source files with the given compiler flags. | |
| 196 function(cxx_test_with_flags name cxx_flags libs) | |
| 197 cxx_executable_with_flags(${name} "${cxx_flags}" "${libs}" ${ARGN}) | |
| 198 add_test(${name} ${name}) | |
| 199 endfunction() | |
| 200 | |
| 201 # cxx_test(name libs srcs...) | |
| 202 # | |
| 203 # creates a named test target that depends on the given libs and is | |
| 204 # built from the given source files. Unlike cxx_test_with_flags, | |
| 205 # test/name.cc is already implicitly included in the source file list. | |
| 206 function(cxx_test name libs) | |
| 207 cxx_test_with_flags("${name}" "${cxx_default}" "${libs}" | |
| 208 "test/${name}.cc" ${ARGN}) | |
| 209 endfunction() | |
| 210 | |
| 211 # py_test(name) | |
| 212 # | |
| 213 # creates a Python test with the given name whose main module is in | |
| 214 # test/name.py. It does nothing if Python is not installed. | |
| 215 function(py_test name) | |
| 216 # We are not supporting Python tests on Linux yet as they consider | |
| 217 # all Linux environments to be google3 and try to use google3 features. | |
| 218 if (PYTHONINTERP_FOUND) | |
| 219 # ${CMAKE_BINARY_DIR} is known at configuration time, so we can | |
| 220 # directly bind it from cmake. ${CTEST_CONFIGURATION_TYPE} is known | |
| 221 # only at ctest runtime (by calling ctest -c <Configuration>), so | |
| 222 # we have to escape $ to delay variable substitution here. | |
| 223 add_test(${name} | |
| 224 ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/test/${name}.py | |
| 225 --build_dir=${CMAKE_CURRENT_BINARY_DIR}/\${CTEST_CONFIGURATION_TYPE}) | |
| 226 endif() | |
| 227 endfunction() |
