Abseil Common Libraries (C++) (grcp 依赖)
https://abseil.io/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
478 lines
16 KiB
478 lines
16 KiB
# |
|
# Copyright 2017 The Abseil Authors. |
|
# |
|
# Licensed under the Apache License, Version 2.0 (the "License"); |
|
# you may not use this file except in compliance with the License. |
|
# You may obtain a copy of the License at |
|
# |
|
# https://www.apache.org/licenses/LICENSE-2.0 |
|
# |
|
# Unless required by applicable law or agreed to in writing, software |
|
# distributed under the License is distributed on an "AS IS" BASIS, |
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
|
# See the License for the specific language governing permissions and |
|
# limitations under the License. |
|
# |
|
|
|
include(CMakeParseArguments) |
|
include(AbseilConfigureCopts) |
|
include(AbseilDll) |
|
|
|
# The IDE folder for Abseil that will be used if Abseil is included in a CMake |
|
# project that sets |
|
# set_property(GLOBAL PROPERTY USE_FOLDERS ON) |
|
# For example, Visual Studio supports folders. |
|
if(NOT DEFINED ABSL_IDE_FOLDER) |
|
set(ABSL_IDE_FOLDER Abseil) |
|
endif() |
|
|
|
if(ABSL_USE_SYSTEM_INCLUDES) |
|
set(ABSL_INTERNAL_INCLUDE_WARNING_GUARD SYSTEM) |
|
else() |
|
set(ABSL_INTERNAL_INCLUDE_WARNING_GUARD "") |
|
endif() |
|
|
|
function(_absl_target_compile_features_if_available TARGET TYPE FEATURE) |
|
if(FEATURE IN_LIST CMAKE_CXX_COMPILE_FEATURES) |
|
target_compile_features(${TARGET} ${TYPE} ${FEATURE}) |
|
else() |
|
message(WARNING "Feature ${FEATURE} is unknown for the CXX compiler") |
|
endif() |
|
endfunction() |
|
|
|
include(CheckCXXSourceCompiles) |
|
|
|
check_cxx_source_compiles( |
|
[==[ |
|
#ifdef _MSC_VER |
|
# if _MSVC_LANG < 201700L |
|
# error "The compiler defaults or is configured for C++ < 17" |
|
# endif |
|
#elif __cplusplus < 201700L |
|
# error "The compiler defaults or is configured for C++ < 17" |
|
#endif |
|
int main() { return 0; } |
|
]==] |
|
ABSL_INTERNAL_AT_LEAST_CXX17) |
|
|
|
if(ABSL_INTERNAL_AT_LEAST_CXX17) |
|
set(ABSL_INTERNAL_CXX_STD_FEATURE cxx_std_17) |
|
else() |
|
set(ABSL_INTERNAL_CXX_STD_FEATURE cxx_std_14) |
|
endif() |
|
|
|
# absl_cc_library() |
|
# |
|
# CMake function to imitate Bazel's cc_library rule. |
|
# |
|
# Parameters: |
|
# NAME: name of target (see Note) |
|
# HDRS: List of public header files for the library |
|
# SRCS: List of source files for the library |
|
# DEPS: List of other libraries to be linked in to the binary targets |
|
# COPTS: List of private compile options |
|
# DEFINES: List of public defines |
|
# LINKOPTS: List of link options |
|
# PUBLIC: Add this so that this library will be exported under absl:: |
|
# Also in IDE, target will appear in Abseil folder while non PUBLIC will be in Abseil/internal. |
|
# TESTONLY: When added, this target will only be built if both |
|
# BUILD_TESTING=ON and ABSL_BUILD_TESTING=ON. |
|
# |
|
# Note: |
|
# By default, absl_cc_library will always create a library named absl_${NAME}, |
|
# and alias target absl::${NAME}. The absl:: form should always be used. |
|
# This is to reduce namespace pollution. |
|
# |
|
# absl_cc_library( |
|
# NAME |
|
# awesome |
|
# HDRS |
|
# "a.h" |
|
# SRCS |
|
# "a.cc" |
|
# ) |
|
# absl_cc_library( |
|
# NAME |
|
# fantastic_lib |
|
# SRCS |
|
# "b.cc" |
|
# DEPS |
|
# absl::awesome # not "awesome" ! |
|
# PUBLIC |
|
# ) |
|
# |
|
# absl_cc_library( |
|
# NAME |
|
# main_lib |
|
# ... |
|
# DEPS |
|
# absl::fantastic_lib |
|
# ) |
|
# |
|
# TODO: Implement "ALWAYSLINK" |
|
function(absl_cc_library) |
|
cmake_parse_arguments(ABSL_CC_LIB |
|
"DISABLE_INSTALL;PUBLIC;TESTONLY" |
|
"NAME" |
|
"HDRS;SRCS;COPTS;DEFINES;LINKOPTS;DEPS" |
|
${ARGN} |
|
) |
|
|
|
if(ABSL_CC_LIB_TESTONLY AND |
|
NOT ((BUILD_TESTING AND ABSL_BUILD_TESTING) OR |
|
(ABSL_BUILD_TEST_HELPERS AND ABSL_CC_LIB_PUBLIC))) |
|
return() |
|
endif() |
|
|
|
if(ABSL_ENABLE_INSTALL) |
|
set(_NAME "${ABSL_CC_LIB_NAME}") |
|
else() |
|
set(_NAME "absl_${ABSL_CC_LIB_NAME}") |
|
endif() |
|
|
|
# Check if this is a header-only library |
|
# Note that as of February 2019, many popular OS's (for example, Ubuntu |
|
# 16.04 LTS) only come with cmake 3.5 by default. For this reason, we can't |
|
# use list(FILTER...) |
|
set(ABSL_CC_SRCS "${ABSL_CC_LIB_SRCS}") |
|
foreach(src_file IN LISTS ABSL_CC_SRCS) |
|
if(${src_file} MATCHES ".*\\.(h|inc)") |
|
list(REMOVE_ITEM ABSL_CC_SRCS "${src_file}") |
|
endif() |
|
endforeach() |
|
|
|
if(ABSL_CC_SRCS STREQUAL "") |
|
set(ABSL_CC_LIB_IS_INTERFACE 1) |
|
else() |
|
set(ABSL_CC_LIB_IS_INTERFACE 0) |
|
endif() |
|
|
|
# Determine this build target's relationship to the DLL. It's one of four things: |
|
# 1. "dll" -- This target is part of the DLL |
|
# 2. "dll_dep" -- This target is not part of the DLL, but depends on the DLL. |
|
# Note that we assume any target not in the DLL depends on the |
|
# DLL. This is not a technical necessity but a convenience |
|
# which happens to be true, because nearly every target is |
|
# part of the DLL. |
|
# 3. "shared" -- This is a shared library, perhaps on a non-windows platform |
|
# where DLL doesn't make sense. |
|
# 4. "static" -- This target does not depend on the DLL and should be built |
|
# statically. |
|
if (${ABSL_BUILD_DLL}) |
|
if(ABSL_ENABLE_INSTALL) |
|
absl_internal_dll_contains(TARGET ${_NAME} OUTPUT _in_dll) |
|
else() |
|
absl_internal_dll_contains(TARGET ${ABSL_CC_LIB_NAME} OUTPUT _in_dll) |
|
endif() |
|
if (${_in_dll}) |
|
# This target should be replaced by the DLL |
|
set(_build_type "dll") |
|
set(ABSL_CC_LIB_IS_INTERFACE 1) |
|
else() |
|
# Building a DLL, but this target is not part of the DLL |
|
set(_build_type "dll_dep") |
|
endif() |
|
elseif(BUILD_SHARED_LIBS) |
|
set(_build_type "shared") |
|
else() |
|
set(_build_type "static") |
|
endif() |
|
|
|
# Generate a pkg-config file for every library: |
|
if((_build_type STREQUAL "static" OR _build_type STREQUAL "shared") |
|
AND ABSL_ENABLE_INSTALL) |
|
if(NOT ABSL_CC_LIB_TESTONLY) |
|
if(absl_VERSION) |
|
set(PC_VERSION "${absl_VERSION}") |
|
else() |
|
set(PC_VERSION "head") |
|
endif() |
|
foreach(dep ${ABSL_CC_LIB_DEPS}) |
|
if(${dep} MATCHES "^absl::(.*)") |
|
# Join deps with commas. |
|
if(PC_DEPS) |
|
set(PC_DEPS "${PC_DEPS},") |
|
endif() |
|
set(PC_DEPS "${PC_DEPS} absl_${CMAKE_MATCH_1} = ${PC_VERSION}") |
|
endif() |
|
endforeach() |
|
foreach(cflag ${ABSL_CC_LIB_COPTS}) |
|
if(${cflag} MATCHES "^(-Wno|/wd)") |
|
# These flags are needed to suppress warnings that might fire in our headers. |
|
set(PC_CFLAGS "${PC_CFLAGS} ${cflag}") |
|
elseif(${cflag} MATCHES "^(-W|/w[1234eo])") |
|
# Don't impose our warnings on others. |
|
elseif(${cflag} MATCHES "^-m") |
|
# Don't impose CPU instruction requirements on others, as |
|
# the code performs feature detection on runtime. |
|
else() |
|
set(PC_CFLAGS "${PC_CFLAGS} ${cflag}") |
|
endif() |
|
endforeach() |
|
string(REPLACE ";" " " PC_LINKOPTS "${ABSL_CC_LIB_LINKOPTS}") |
|
FILE(GENERATE OUTPUT "${CMAKE_BINARY_DIR}/lib/pkgconfig/absl_${_NAME}.pc" CONTENT "\ |
|
prefix=${CMAKE_INSTALL_PREFIX}\n\ |
|
exec_prefix=\${prefix}\n\ |
|
libdir=${CMAKE_INSTALL_FULL_LIBDIR}\n\ |
|
includedir=${CMAKE_INSTALL_FULL_INCLUDEDIR}\n\ |
|
\n\ |
|
Name: absl_${_NAME}\n\ |
|
Description: Abseil ${_NAME} library\n\ |
|
URL: https://abseil.io/\n\ |
|
Version: ${PC_VERSION}\n\ |
|
Requires:${PC_DEPS}\n\ |
|
Libs: -L\${libdir} ${PC_LINKOPTS} $<$<NOT:$<BOOL:${ABSL_CC_LIB_IS_INTERFACE}>>:-labsl_${_NAME}>\n\ |
|
Cflags: -I\${includedir}${PC_CFLAGS}\n") |
|
INSTALL(FILES "${CMAKE_BINARY_DIR}/lib/pkgconfig/absl_${_NAME}.pc" |
|
DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig") |
|
endif() |
|
endif() |
|
|
|
if(NOT ABSL_CC_LIB_IS_INTERFACE) |
|
if(_build_type STREQUAL "dll_dep") |
|
# This target depends on the DLL. When adding dependencies to this target, |
|
# any depended-on-target which is contained inside the DLL is replaced |
|
# with a dependency on the DLL. |
|
add_library(${_NAME} STATIC "") |
|
target_sources(${_NAME} PRIVATE ${ABSL_CC_LIB_SRCS} ${ABSL_CC_LIB_HDRS}) |
|
absl_internal_dll_targets( |
|
DEPS ${ABSL_CC_LIB_DEPS} |
|
OUTPUT _dll_deps |
|
) |
|
target_link_libraries(${_NAME} |
|
PUBLIC ${_dll_deps} |
|
PRIVATE |
|
${ABSL_CC_LIB_LINKOPTS} |
|
${ABSL_DEFAULT_LINKOPTS} |
|
) |
|
|
|
if (ABSL_CC_LIB_TESTONLY) |
|
set(_gtest_link_define "GTEST_LINKED_AS_SHARED_LIBRARY=1") |
|
else() |
|
set(_gtest_link_define) |
|
endif() |
|
|
|
target_compile_definitions(${_NAME} |
|
PUBLIC |
|
ABSL_CONSUME_DLL |
|
"${_gtest_link_define}" |
|
) |
|
|
|
elseif(_build_type STREQUAL "static" OR _build_type STREQUAL "shared") |
|
add_library(${_NAME} "") |
|
target_sources(${_NAME} PRIVATE ${ABSL_CC_LIB_SRCS} ${ABSL_CC_LIB_HDRS}) |
|
target_link_libraries(${_NAME} |
|
PUBLIC ${ABSL_CC_LIB_DEPS} |
|
PRIVATE |
|
${ABSL_CC_LIB_LINKOPTS} |
|
${ABSL_DEFAULT_LINKOPTS} |
|
) |
|
else() |
|
message(FATAL_ERROR "Invalid build type: ${_build_type}") |
|
endif() |
|
|
|
# Linker language can be inferred from sources, but in the case of DLLs we |
|
# don't have any .cc files so it would be ambiguous. We could set it |
|
# explicitly only in the case of DLLs but, because "CXX" is always the |
|
# correct linker language for static or for shared libraries, we set it |
|
# unconditionally. |
|
set_property(TARGET ${_NAME} PROPERTY LINKER_LANGUAGE "CXX") |
|
|
|
target_include_directories(${_NAME} ${ABSL_INTERNAL_INCLUDE_WARNING_GUARD} |
|
PUBLIC |
|
"$<BUILD_INTERFACE:${ABSL_COMMON_INCLUDE_DIRS}>" |
|
$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}> |
|
) |
|
target_compile_options(${_NAME} |
|
PRIVATE ${ABSL_CC_LIB_COPTS}) |
|
target_compile_definitions(${_NAME} PUBLIC ${ABSL_CC_LIB_DEFINES}) |
|
|
|
# Add all Abseil targets to a a folder in the IDE for organization. |
|
if(ABSL_CC_LIB_PUBLIC) |
|
set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER}) |
|
elseif(ABSL_CC_LIB_TESTONLY) |
|
set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER}/test) |
|
else() |
|
set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER}/internal) |
|
endif() |
|
|
|
if(ABSL_PROPAGATE_CXX_STD) |
|
# Abseil libraries require C++14 as the current minimum standard. |
|
# Top-level application CMake projects should ensure a consistent C++ |
|
# standard for all compiled sources by setting CMAKE_CXX_STANDARD. |
|
_absl_target_compile_features_if_available(${_NAME} PUBLIC ${ABSL_INTERNAL_CXX_STD_FEATURE}) |
|
else() |
|
# Note: This is legacy (before CMake 3.8) behavior. Setting the |
|
# target-level CXX_STANDARD property to ABSL_CXX_STANDARD (which is |
|
# initialized by CMAKE_CXX_STANDARD) should have no real effect, since |
|
# that is the default value anyway. |
|
# |
|
# CXX_STANDARD_REQUIRED does guard against the top-level CMake project |
|
# not having enabled CMAKE_CXX_STANDARD_REQUIRED (which prevents |
|
# "decaying" to an older standard if the requested one isn't available). |
|
set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD ${ABSL_CXX_STANDARD}) |
|
set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD_REQUIRED ON) |
|
endif() |
|
|
|
# When being installed, we lose the absl_ prefix. We want to put it back |
|
# to have properly named lib files. This is a no-op when we are not being |
|
# installed. |
|
if(ABSL_ENABLE_INSTALL) |
|
set_target_properties(${_NAME} PROPERTIES |
|
OUTPUT_NAME "absl_${_NAME}" |
|
SOVERSION 0 |
|
) |
|
endif() |
|
else() |
|
# Generating header-only library |
|
add_library(${_NAME} INTERFACE) |
|
target_include_directories(${_NAME} ${ABSL_INTERNAL_INCLUDE_WARNING_GUARD} |
|
INTERFACE |
|
"$<BUILD_INTERFACE:${ABSL_COMMON_INCLUDE_DIRS}>" |
|
$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}> |
|
) |
|
|
|
if (_build_type STREQUAL "dll") |
|
set(ABSL_CC_LIB_DEPS abseil_dll) |
|
endif() |
|
|
|
target_link_libraries(${_NAME} |
|
INTERFACE |
|
${ABSL_CC_LIB_DEPS} |
|
${ABSL_CC_LIB_LINKOPTS} |
|
${ABSL_DEFAULT_LINKOPTS} |
|
) |
|
target_compile_definitions(${_NAME} INTERFACE ${ABSL_CC_LIB_DEFINES}) |
|
|
|
if(ABSL_PROPAGATE_CXX_STD) |
|
# Abseil libraries require C++14 as the current minimum standard. |
|
# Top-level application CMake projects should ensure a consistent C++ |
|
# standard for all compiled sources by setting CMAKE_CXX_STANDARD. |
|
_absl_target_compile_features_if_available(${_NAME} INTERFACE ${ABSL_INTERNAL_CXX_STD_FEATURE}) |
|
|
|
# (INTERFACE libraries can't have the CXX_STANDARD property set, so there |
|
# is no legacy behavior else case). |
|
endif() |
|
endif() |
|
|
|
# TODO currently we don't install googletest alongside abseil sources, so |
|
# installed abseil can't be tested. |
|
if(NOT ABSL_CC_LIB_TESTONLY AND ABSL_ENABLE_INSTALL) |
|
install(TARGETS ${_NAME} EXPORT ${PROJECT_NAME}Targets |
|
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} |
|
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} |
|
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} |
|
) |
|
endif() |
|
|
|
add_library(absl::${ABSL_CC_LIB_NAME} ALIAS ${_NAME}) |
|
endfunction() |
|
|
|
# absl_cc_test() |
|
# |
|
# CMake function to imitate Bazel's cc_test rule. |
|
# |
|
# Parameters: |
|
# NAME: name of target (see Usage below) |
|
# SRCS: List of source files for the binary |
|
# DEPS: List of other libraries to be linked in to the binary targets |
|
# COPTS: List of private compile options |
|
# DEFINES: List of public defines |
|
# LINKOPTS: List of link options |
|
# |
|
# Note: |
|
# By default, absl_cc_test will always create a binary named absl_${NAME}. |
|
# This will also add it to ctest list as absl_${NAME}. |
|
# |
|
# Usage: |
|
# absl_cc_library( |
|
# NAME |
|
# awesome |
|
# HDRS |
|
# "a.h" |
|
# SRCS |
|
# "a.cc" |
|
# PUBLIC |
|
# ) |
|
# |
|
# absl_cc_test( |
|
# NAME |
|
# awesome_test |
|
# SRCS |
|
# "awesome_test.cc" |
|
# DEPS |
|
# absl::awesome |
|
# GTest::gmock |
|
# GTest::gtest_main |
|
# ) |
|
function(absl_cc_test) |
|
if(NOT (BUILD_TESTING AND ABSL_BUILD_TESTING)) |
|
return() |
|
endif() |
|
|
|
cmake_parse_arguments(ABSL_CC_TEST |
|
"" |
|
"NAME" |
|
"SRCS;COPTS;DEFINES;LINKOPTS;DEPS" |
|
${ARGN} |
|
) |
|
|
|
set(_NAME "absl_${ABSL_CC_TEST_NAME}") |
|
|
|
add_executable(${_NAME} "") |
|
target_sources(${_NAME} PRIVATE ${ABSL_CC_TEST_SRCS}) |
|
target_include_directories(${_NAME} |
|
PUBLIC ${ABSL_COMMON_INCLUDE_DIRS} |
|
PRIVATE ${GMOCK_INCLUDE_DIRS} ${GTEST_INCLUDE_DIRS} |
|
) |
|
|
|
if (${ABSL_BUILD_DLL}) |
|
target_compile_definitions(${_NAME} |
|
PUBLIC |
|
${ABSL_CC_TEST_DEFINES} |
|
ABSL_CONSUME_DLL |
|
GTEST_LINKED_AS_SHARED_LIBRARY=1 |
|
) |
|
|
|
# Replace dependencies on targets inside the DLL with abseil_dll itself. |
|
absl_internal_dll_targets( |
|
DEPS ${ABSL_CC_TEST_DEPS} |
|
OUTPUT ABSL_CC_TEST_DEPS |
|
) |
|
else() |
|
target_compile_definitions(${_NAME} |
|
PUBLIC |
|
${ABSL_CC_TEST_DEFINES} |
|
) |
|
endif() |
|
target_compile_options(${_NAME} |
|
PRIVATE ${ABSL_CC_TEST_COPTS} |
|
) |
|
|
|
target_link_libraries(${_NAME} |
|
PUBLIC ${ABSL_CC_TEST_DEPS} |
|
PRIVATE ${ABSL_CC_TEST_LINKOPTS} |
|
) |
|
# Add all Abseil targets to a folder in the IDE for organization. |
|
set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER}/test) |
|
|
|
if(ABSL_PROPAGATE_CXX_STD) |
|
# Abseil libraries require C++14 as the current minimum standard. |
|
# Top-level application CMake projects should ensure a consistent C++ |
|
# standard for all compiled sources by setting CMAKE_CXX_STANDARD. |
|
_absl_target_compile_features_if_available(${_NAME} PUBLIC ${ABSL_INTERNAL_CXX_STD_FEATURE}) |
|
else() |
|
# Note: This is legacy (before CMake 3.8) behavior. Setting the |
|
# target-level CXX_STANDARD property to ABSL_CXX_STANDARD (which is |
|
# initialized by CMAKE_CXX_STANDARD) should have no real effect, since |
|
# that is the default value anyway. |
|
# |
|
# CXX_STANDARD_REQUIRED does guard against the top-level CMake project |
|
# not having enabled CMAKE_CXX_STANDARD_REQUIRED (which prevents |
|
# "decaying" to an older standard if the requested one isn't available). |
|
set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD ${ABSL_CXX_STANDARD}) |
|
set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD_REQUIRED ON) |
|
endif() |
|
|
|
add_test(NAME ${_NAME} COMMAND ${_NAME}) |
|
endfunction()
|
|
|