1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
|
# Defines functions and macros useful for building Google Test and
# Google Mock.
#
# Note:
#
# - This file will be run twice when building Google Mock (once via
# Google Test's CMakeLists.txt, and once via Google Mock's).
# Therefore it shouldn't have any side effects other than defining
# the functions and macros.
#
# - The functions/macros defined in this file may depend on Google
# Test and Google Mock's option() definitions, and thus must be
# called *after* the options have been defined.
# Tweaks CMake's default compiler/linker settings to suit Google Test's needs.
#
# This must be a macro(), as inside a function string() can only
# update variables in the function scope.
macro(fix_default_compiler_settings_)
if (MSVC)
# For MSVC, CMake sets certain flags to defaults we want to override.
# This replacement code is taken from sample in the CMake Wiki at
# http://www.cmake.org/Wiki/CMake_FAQ#Dynamic_Replace.
foreach (flag_var
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
if (NOT BUILD_SHARED_LIBS AND NOT gtest_force_shared_crt)
# When Google Test is built as a shared library, it should also use
# shared runtime libraries. Otherwise, it may end up with multiple
# copies of runtime library data in different modules, resulting in
# hard-to-find crashes. When it is built as a static library, it is
# preferable to use CRT as static libraries, as we don't have to rely
# on CRT DLLs being available. CMake always defaults to using shared
# CRT libraries, so we override that default here.
string(REPLACE "/MD" "-MT" ${flag_var} "${${flag_var}}")
endif()
# We prefer more strict warning checking for building Google Test.
# Replaces /W3 with /W4 in defaults.
string(REPLACE "/W3" "/W4" ${flag_var} "${${flag_var}}")
endforeach()
endif()
endmacro()
# Defines the compiler/linker flags used to build Google Test and
# Google Mock. You can tweak these definitions to suit your need. A
# variable's value is empty before it's explicitly assigned to.
macro(config_compiler_and_linker)
if (NOT gtest_disable_pthreads)
# Defines CMAKE_USE_PTHREADS_INIT and CMAKE_THREAD_LIBS_INIT.
find_package(Threads)
endif()
fix_default_compiler_settings_()
if (MSVC)
# Newlines inside flags variables break CMake's NMake generator.
# TODO(vladl@google.com): Add -RTCs and -RTCu to debug builds.
set(cxx_base_flags "-GS -W4 -WX -wd4251 -wd4275 -nologo -J -Zi")
if (MSVC_VERSION LESS 1400) # 1400 is Visual Studio 2005
# Suppress spurious warnings MSVC 7.1 sometimes issues.
# Forcing value to bool.
set(cxx_base_flags "${cxx_base_flags} -wd4800")
# Copy constructor and assignment operator could not be generated.
set(cxx_base_flags "${cxx_base_flags} -wd4511 -wd4512")
# Compatibility warnings not applicable to Google Test.
# Resolved overload was found by argument-dependent lookup.
set(cxx_base_flags "${cxx_base_flags} -wd4675")
endif()
if (MSVC_VERSION LESS 1500) # 1500 is Visual Studio 2008
# Conditional expression is constant.
# When compiling with /W4, we get several instances of C4127
# (Conditional expression is constant). In our code, we disable that
# warning on a case-by-case basis. However, on Visual Studio 2005,
# the warning fires on std::list. Therefore on that compiler and earlier,
# we disable the warning project-wide.
set(cxx_base_flags "${cxx_base_flags} -wd4127")
endif()
if (NOT (MSVC_VERSION LESS 1700)) # 1700 is Visual Studio 2012.
# Suppress "unreachable code" warning on VS 2012 and later.
# http://stackoverflow.com/questions/3232669 explains the issue.
set(cxx_base_flags "${cxx_base_flags} -wd4702")
endif()
set(cxx_base_flags "${cxx_base_flags} -D_UNICODE -DUNICODE -DWIN32 -D_WIN32")
set(cxx_base_flags "${cxx_base_flags} -DSTRICT -DWIN32_LEAN_AND_MEAN")
set(cxx_exception_flags "-EHsc -D_HAS_EXCEPTIONS=1")
set(cxx_no_exception_flags "-D_HAS_EXCEPTIONS=0")
set(cxx_no_rtti_flags "-GR-")
elseif (CMAKE_COMPILER_IS_GNUCXX)
set(cxx_base_flags "-Wall -Wshadow -fPIC")
set(cxx_exception_flags "-fexceptions")
set(cxx_no_exception_flags "-fno-exceptions")
# Until version 4.3.2, GCC doesn't define a macro to indicate
# whether RTTI is enabled. Therefore we define GTEST_HAS_RTTI
# explicitly.
set(cxx_no_rtti_flags "-fno-rtti -DGTEST_HAS_RTTI=0")
set(cxx_strict_flags
"-Wextra -Wno-unused-parameter -Wno-missing-field-initializers")
elseif (CMAKE_CXX_COMPILER_ID STREQUAL "SunPro")
set(cxx_exception_flags "-features=except")
# Sun Pro doesn't provide macros to indicate whether exceptions and
# RTTI are enabled, so we define GTEST_HAS_* explicitly.
set(cxx_no_exception_flags "-features=no%except -DGTEST_HAS_EXCEPTIONS=0")
set(cxx_no_rtti_flags "-features=no%rtti -DGTEST_HAS_RTTI=0")
elseif (CMAKE_CXX_COMPILER_ID STREQUAL "VisualAge" OR
CMAKE_CXX_COMPILER_ID STREQUAL "XL")
# CMake 2.8 changes Visual Age's compiler ID to "XL".
set(cxx_exception_flags "-qeh")
set(cxx_no_exception_flags "-qnoeh")
# Until version 9.0, Visual Age doesn't define a macro to indicate
# whether RTTI is enabled. Therefore we define GTEST_HAS_RTTI
# explicitly.
set(cxx_no_rtti_flags "-qnortti -DGTEST_HAS_RTTI=0")
elseif (CMAKE_CXX_COMPILER_ID STREQUAL "HP")
set(cxx_base_flags "-AA -mt")
set(cxx_exception_flags "-DGTEST_HAS_EXCEPTIONS=1")
set(cxx_no_exception_flags "+noeh -DGTEST_HAS_EXCEPTIONS=0")
# RTTI can not be disabled in HP aCC compiler.
set(cxx_no_rtti_flags "")
endif()
if (CMAKE_USE_PTHREADS_INIT) # The pthreads library is available and allowed.
set(cxx_base_flags "${cxx_base_flags} -DGTEST_HAS_PTHREAD=1")
else()
set(cxx_base_flags "${cxx_base_flags} -DGTEST_HAS_PTHREAD=0")
endif()
# For building gtest's own tests and samples.
set(cxx_exception "${CMAKE_CXX_FLAGS} ${cxx_base_flags} ${cxx_exception_flags}")
set(cxx_no_exception
"${CMAKE_CXX_FLAGS} ${cxx_base_flags} ${cxx_no_exception_flags}")
set(cxx_default "${cxx_exception}")
set(cxx_no_rtti "${cxx_default} ${cxx_no_rtti_flags}")
set(cxx_use_own_tuple "${cxx_default} -DGTEST_USE_OWN_TR1_TUPLE=1")
# For building the gtest libraries.
set(cxx_strict "${cxx_default} ${cxx_strict_flags}")
endmacro()
# Defines the gtest & gtest_main libraries. User tests should link
# with one of them.
function(cxx_library_with_type name type cxx_flags)
# type can be either STATIC or SHARED to denote a static or shared library.
# ARGN refers to additional arguments after 'cxx_flags'.
add_library(${name} ${type} ${ARGN})
set_target_properties(${name}
PROPERTIES
COMPILE_FLAGS "${cxx_flags}")
if (BUILD_SHARED_LIBS OR type STREQUAL "SHARED")
set_target_properties(${name}
PROPERTIES
COMPILE_DEFINITIONS "GTEST_CREATE_SHARED_LIBRARY=1")
endif()
if (CMAKE_USE_PTHREADS_INIT)
target_link_libraries(${name} ${CMAKE_THREAD_LIBS_INIT})
endif()
endfunction()
########################################################################
#
# Helper functions for creating build targets.
function(cxx_shared_library name cxx_flags)
cxx_library_with_type(${name} SHARED "${cxx_flags}" ${ARGN})
endfunction()
function(cxx_library name cxx_flags)
cxx_library_with_type(${name} "" "${cxx_flags}" ${ARGN})
endfunction()
# cxx_executable_with_flags(name cxx_flags libs srcs...)
#
# creates a named C++ executable that depends on the given libraries and
# is built from the given source files with the given compiler flags.
function(cxx_executable_with_flags name cxx_flags libs)
add_executable(${name} ${ARGN})
if (cxx_flags)
set_target_properties(${name}
PROPERTIES
COMPILE_FLAGS "${cxx_flags}")
endif()
if (BUILD_SHARED_LIBS)
set_target_properties(${name}
PROPERTIES
COMPILE_DEFINITIONS "GTEST_LINKED_AS_SHARED_LIBRARY=1")
endif()
# To support mixing linking in static and dynamic libraries, link each
# library in with an extra call to target_link_libraries.
foreach (lib "${libs}")
target_link_libraries(${name} ${lib})
endforeach()
endfunction()
# cxx_executable(name dir lib srcs...)
#
# creates a named target that depends on the given libs and is built
# from the given source files. dir/name.cc is implicitly included in
# the source file list.
function(cxx_executable name dir libs)
cxx_executable_with_flags(
${name} "${cxx_default}" "${libs}" "${dir}/${name}.cc" ${ARGN})
endfunction()
# Sets PYTHONINTERP_FOUND and PYTHON_EXECUTABLE.
find_package(PythonInterp)
# cxx_test_with_flags(name cxx_flags libs srcs...)
#
# creates a named C++ test that depends on the given libs and is built
# from the given source files with the given compiler flags.
function(cxx_test_with_flags name cxx_flags libs)
cxx_executable_with_flags(${name} "${cxx_flags}" "${libs}" ${ARGN})
add_test(${name} ${name})
endfunction()
# cxx_test(name libs srcs...)
#
# creates a named test target that depends on the given libs and is
# built from the given source files. Unlike cxx_test_with_flags,
# test/name.cc is already implicitly included in the source file list.
function(cxx_test name libs)
cxx_test_with_flags("${name}" "${cxx_default}" "${libs}"
"test/${name}.cc" ${ARGN})
endfunction()
# py_test(name)
#
# creates a Python test with the given name whose main module is in
# test/name.py. It does nothing if Python is not installed.
function(py_test name)
# We are not supporting Python tests on Linux yet as they consider
# all Linux environments to be google3 and try to use google3 features.
if (PYTHONINTERP_FOUND)
# ${CMAKE_BINARY_DIR} is known at configuration time, so we can
# directly bind it from cmake. ${CTEST_CONFIGURATION_TYPE} is known
# only at ctest runtime (by calling ctest -c <Configuration>), so
# we have to escape $ to delay variable substitution here.
add_test(${name}
${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/test/${name}.py
--build_dir=${CMAKE_CURRENT_BINARY_DIR}/\${CTEST_CONFIGURATION_TYPE})
endif()
endfunction()
|
