我的问题：在这一刻，我将libre2链接起来，但我想静态地做到这一点。我将库安装在我的PC（sudo apt-get install libre2-dev）中，得到了“二进制”，并将此二进制“ libre2.so”链接在我的可执行文件中。但是我想git克隆存储库或通过git subpodule做到这一点，然后构建此存储库并静态地将其链接在我的项目中。 我在这里新来，对不起，我的英语不好。
我的项目结构
build
SET（version_major 0）
set（version_minor 0）CPR需要C ++11
SET（cmake_cxx_flags“ $ {cmake_cxx_flags} -std = c ++ 11”）
file（全球源 *.cpp）
SRC：收集功能 - 依赖OS
file（glob sources $ {sources} src/windows/windows/
.cpp）endif（）
Headers -Test
option（print_json“在发送之前设置为打印json对象”
消息（状态“ $ {print_json}：$ {$ {print_json}}”）
如果（print_json）
add_definitions（-dprint_json）
endif（）
SET（cmake_runtime_output_directory“ ../ bin”） add_executable（agent-v $ {version_major}。$ {version_minor} $ {sources}）
target_link_libraries（agent-v $ {version_major}。$ {version_minor} $ {re2_library}）
main.cpp
＃包括
#include
使用名称空间RE2;
IntMatchResult;
MatchResult= Re2 :: FullMatch（“ Hello”，“H。*O”）;
cout
return 0;
}
<< "hello world" << endl;
Edit-（26.01.17）：大家好。我在这里谈论我如何解决它。 按照一些提示提供了此处的提示，我创建了一个名为
re2.cmake：<< "matchResult = " << matchResult << endl;
的文件。cmake_minimum_required ( VERSION 2.8.7 )
if (NOT RE2_NAME)
include (ExternalProject)
SET (RE2_INCLUDE_DIRS ${CMAKE_CURRENT_BINARY_DIR}/re2/src/re2/)
SET (RE2_EXTRA_INCLUDE_DIRS ${CMAKE_CURRENT_BINARY_DIR}/re2/src/re2/)
SET (RE2_URL https://github.com/google/re2.git)
SET (RE2_BUILD ${CMAKE_BINARY_DIR}/re2/src/re2)
SET (RE2_LIBRARIES ${RE2_BUILD}/obj/so/libre2.so)
get_filename_component(RE2_STATIC_LIBRARIES ${RE2_BUILD}/libre2.a ABSOLUTE)
SET (RE2_INCLUDES ${RE2_BUILD})
if ( WIN32 )
SET (RE2_STATIC_LIBRARIES ${RE2_BUILD}/${CMAKE_BUILD_TYPE}/re2.lib)
else ()
SET (RE2_STATIC_LIBRARIES ${RE2_BUILD}/libre2.a)
endif ()
ExternalProject_Add(RE2
PREFIX RE2
GIT_REPOSITORY ${RE2_URL}
# GIT_TAG ${RE2_TAG}
DOWNLOAD_DIR "${DOWNLOAD_LOCATION}"
BUILD_IN_SOURCE 1
INSTALL_COMMAND sudo make install
CMAKE_CACHE_ARGS
-DCMAKE_BUILD_TYPE:STRING=Release -DCMAKE_VERBOSE_MAKEFILE:BOOL=OFF -DCMAKE_POSITION_INDEPENDENT_CODE:BOOL=ON
)
## put re2 includes in the directory where they are expected
add_custom_target(re2_create_destination_dir COMMAND ${CMAKE_COMMAND} -E make_directory ${RE2_INCLUDE_DIR}/re2 DEPENDS re2)
add_custom_target(re2_copy_headers_to_destination DEPENDS re2_create_destination_dir)
foreach(header_file ${RE2_HEADERS})
add_custom_command(TARGET re2_copy_headers_to_destination PRE_BUILD COMMAND ${CMAKE_COMMAND} -E copy ${header_file} ${RE2_INCLUDE_DIR}/re2)
endforeach ()
ADD_LIBRARY(RE2_LIB STATIC IMPORTED DEPENDS RE2)
SET_TARGET_PROPERTIES(RE2_LIB PROPERTIES IMPORTED_LOCATION ${RE2_STATIC_LIBRARIES})
endif (NOT RE2_NAME)
本文件下载存储库，在我的计算机中构建和安装库Libre2。该库具有线程库*的依赖性*（我认为所有Linux操作系统都随附此库）。
但是，有问题：如果我是root用户，我才这样做。因为库使用了“ make install”命令并执行此操作，所以您需要成为root用户。 我的项目结构：- bin
- build
- src
- include
- modules
- re2.cmake
- CMakeLists.txt
cmake_minimum_required ( VERSION 2.8.7 )
project ( project C CXX)
# version number
SET ( VERSION_MAJOR 0 )
SET ( VERSION_MINOR 0 )
SET ( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11" )
# src : main
file ( GLOB SOURCES src/main.cpp )
# headers
include_directories ( "include" )
# src : libre2 - Download, build and install the library
find_package (Threads)
include ( "modules/re2.cmake" )
set(RE2_STATIC_LIBRARIES -L${RE2_LIBRARY_DIR} -l libre2.a )
# compile
set ( CMAKE_RUNTIME_OUTPUT_DIRECTORY "../bin" )
add_executable ( project-v${VERSION_MAJOR}.${VERSION_MINOR} ${SOURCES})
target_link_libraries ( project-v${VERSION_MAJOR}.${VERSION_MINOR} ${RE2_STATIC_LIBRARIES})
add_dependencies(project-v${VERSION_MAJOR}.${VERSION_MINOR} RE2)
target_link_libraries (project-v${VERSION_MAJOR}.${VERSION_MINOR} ${CMAKE_THREAD_LIBS_INIT})
我的新
CmakeLists.txt
cmake_minimum_required( VERSION 2.8.7 )
project( simmc-agent )
# version number
set ( VERSION_MAJOR 0 )
set ( VERSION_MINOR 0 )
# cpr requires c++11
set ( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11" )
# src : main
file ( GLOB SOURCES *.cpp )
# libre2
if (NOT RE2_NAME)
include (ExternalProject)
set(ABBREV "RE2")
set(EXT_PREFIX "external/re2" )
set(${ABBREV}_NAME ${ABBREV})
set(${ABBREV}_INCLUDE_DIRS ${EXT_PREFIX}/src/re2/)
set(APP_DEPENDENCIES ${APP_DEPENDENCIES} ${ABBREV})
message("Installing ${RE2_NAME} into ext build area: ${EXT_PREFIX} ...")
ExternalProject_Add(RE2
PREFIX ${EXT_PREFIX}
URL https://re2.googlecode.com/files/re2-20130115.tgz
URL_MD5 "ef66646926e6cb8f11f277b286eac579"
PATCH_COMMAND ""
CONFIGURE_COMMAND ""
BUILD_COMMAND make
INSTALL_COMMAND ""
BUILD_IN_SOURCE 1
)
set(CXXFLAGS CMAKE_CXX_FLAGS)
set(${ABBREV}_LIBRARIES ${EXT_PREFIX}/src/RE2/obj/so/libre2.so)
set(${ABBREV}_STATIC_LIBRARIES ${EXT_PREFIX}/src/RE2/obj/libre2.a)
set_target_properties(${RE2_NAME} PROPERTIES EXCLUDE_FROM_ALL ON)
endif (NOT RE2_NAME)
if(RE2_INCLUDE_DIRS AND RE2_LIBRARIES)
set(RE2_FOUND TRUE)
endif(RE2_INCLUDE_DIRS AND RE2_LIBRARIES)
if(RE2_FOUND)
message(STATUS "Found RE2: ${RE2_LIBRARIES}")
else(RE2_FOUND)
message(FATAL_ERROR "Could not find RE2 library.")
endif(RE2_FOUND)
set(INCLUDES ${INCLUDES} ${RE2_INCLUDE_DIRS} )
# set(LIBS ${LIBS} ${RE2_STATIC_LIBRARIES} )
# headers
include_directories ( "include" )
# test
option( PRINT_JSON "Set to ON to print json objects before sending" OFF )
message(STATUS "${PRINT_JSON}: ${${PRINT_JSON}}")
if ( PRINT_JSON )
add_definitions ( -DPRINT_JSON )
endif ()
# compile
set ( CMAKE_RUNTIME_OUTPUT_DIRECTORY "../bin" )
add_executable ( agent-v${VERSION_MAJOR}.${VERSION_MINOR} ${SOURCES} )
target_link_libraries ( agent-v${VERSION_MAJOR}.${VERSION_MINOR} ${RE2_LIBRARIES})