我有这个CMakeLists.txt
set(Boost_USE_STATIC_LIBS ON)
find_package(Boost REQUIRED COMPONENTS json)
include_directories(${BOOST_INCLUDE_DIRS})
target_link_libraries(<Target> PRIVATE Boost::json)
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但我收到 cmake 警告
[cmake] CMake Warning at C:/Program Files/CMake/share/cmake3.20/Modules/FindBoost.cmake:2185 (message):
[cmake] No header defined for json; skipping header check (note: header-only
[cmake] libraries have no designated component)
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该项目可以配置和构建。~~但是compile_command.json我发现实际上并没有链接到静态库,这清楚地表明它没有找到并且被编译为仅标头库。~~
编辑:我发现它实际上链接到libboost_json-mt.a生成的build.ninja文件中,所以奇怪的是 cmake 在调用中找不到静态库find_package。
build MyTest.exe MyTest[1]_tests.cmake: CXX_EXECUTABLE_LINKER__MyTest_Debug CMakeFiles/MyTest.dir/test.cpp.obj CMakeFiles/MyTest.dir/BasicStructures/Uri.cpp.obj | C$:/msys64/mingw64/lib/libgtest_main.dll.a C$:/msys64/mingw64/lib/libboost_json-mt.a C$:/msys64/mingw64/lib/libgtest.dll.a C$:/msys64/mingw64/lib/libboost_container-mt.a
FLAGS = -g
LINK_LIBRARIES = C:/msys64/mingw64/lib/libgtest_main.dll.a C:/msys64/mingw64/lib/libboost_json-mt.a C:/msys64/mingw64/lib/libgtest.dll.a C:/msys64/mingw64/lib/libboost_container-mt.a -lkernel32 -luser32 -lgdi32 -lwinspool -lshell32 -lole32 -loleaut32 -luuid -lcomdlg32 -ladvapi32
OBJECT_DIR = CMakeFiles\MyTest.dir
POST_BUILD = cmd.exe /C "cd /D C:\Users\Peter\Desktop\LspCpp\build && "C:\Program Files\CMake\bin\cmake.exe" -D TEST_TARGET=MyTest -D TEST_EXECUTABLE=C:/Users/Peter/Desktop/LspCpp/build/MyTest.exe -D TEST_EXECUTOR= -D TEST_WORKING_DIR=C:/Users/Peter/Desktop/LspCpp/build -D TEST_EXTRA_ARGS= -D TEST_PROPERTIES= -D TEST_PREFIX= -D TEST_SUFFIX= -D NO_PRETTY_TYPES=FALSE -D NO_PRETTY_VALUES=FALSE -D TEST_LIST=MyTest_TESTS -D CTEST_FILE=C:/Users/Peter/Desktop/LspCpp/build/MyTest[1]_tests.cmake -D TEST_DISCOVERY_TIMEOUT=5 -D TEST_XML_OUTPUT_DIR= -P "C:/Program Files/CMake/share/cmake-3.20/Modules/GoogleTestAddTests.cmake""
PRE_LINK = cd .
RESTAT = 1
TARGET_FILE = MyTest.exe
TARGET_IMPLIB = libMyTest.dll.a
TARGET_PDB = MyTest.exe.dbg
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我认为你应该包括而不是静态链接选项
#include <boost/json/src.hpp>
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在您的翻译单位之一。这使得 Boost JSON 有效地仅包含标头。
相关文档: https: //github.com/boostorg/json#header-only
接下来,您可以使用此方法创建您自己的静态库。请记住,如果您的工具链需要的话,可以选择定义可见性宏 (MSVC):
https://github.com/boostorg/json#standalone-shared-library
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