blocks|key|3035332|text|编辑:+CMake现在内置了对此的支持。请参阅使用FetchContent的new+answer。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3035333|您还可以在辅助make过程中强制构建依赖目标|3035334|请参阅相关主题的my+answer。|3035335|entityMap|0|LINK|mutability|MUTABLE|url|https://cmake.org/cmake/help/latest/module/FetchContent.html|1|https://stackoverflow.com/a/60606636/28275|2|https://stackoverflow.com/a/23570741/28275^0|P|C|0|12|A|1|0|0|8|9|2|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]|$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|11|8|@]|9|@$A|12|B|13|1|14]]|C|$]]|$1|H|3|-4|5|6|7|15|8|@]|9|@]|C|$]]]|I|$J|$5|K|L|M|C|$N|O]]|P|$5|K|L|M|C|$N|Q]]|R|$5|K|L|M|C|$N|S]]]]

Edit: CMake now has builtin support for this. See <a href="https://stackoverflow.com/a/60606636/28275">new answer</a> which uses <a href="https://cmake.org/cmake/help/latest/module/FetchContent.html" rel="nofollow noreferrer">FetchContent</a>.
You can also force the build of the dependent target in a secondary make process
See <a href="https://stackoverflow.com/a/23570741/28275">my answer</a> on a related topic.

blocks|key|198425|text|This+post有一个合理的答案：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|198426|CMakeLists.txt.in|style|CODE|198427|cmake_minimum_required(VERSION+2.8.2)

project(googletest-download+NONE)

include(ExternalProject)
ExternalProject_Add(googletest
++GIT_REPOSITORY++++https://github.com/google/googletest.git
++GIT_TAG+++++++++++master
++SOURCE_DIR++++++++"${CMAKE_BINARY_DIR}/googletest-src"
++BINARY_DIR++++++++"${CMAKE_BINARY_DIR}/googletest-build"
++CONFIGURE_COMMAND+""
++BUILD_COMMAND+++++""
++INSTALL_COMMAND+++""
++TEST_COMMAND++++++""
)|code-block|syntax|javascript|198428|CMakeLists.txt|198429|#+Download+and+unpack+googletest+at+configure+time
configure_file(CMakeLists.txt.in
+++++++++++++++googletest-download/CMakeLists.txt)
execute_process(COMMAND+${CMAKE_COMMAND}+-G+"${CMAKE_GENERATOR}"+.
++WORKING_DIRECTORY+${CMAKE_BINARY_DIR}/googletest-download+)
execute_process(COMMAND+${CMAKE_COMMAND}+--build+.
++WORKING_DIRECTORY+${CMAKE_BINARY_DIR}/googletest-download+)

#+Prevent+GoogleTest+from+overriding+our+compiler/linker+options
#+when+building+with+Visual+Studio
set(gtest_force_shared_crt+ON+CACHE+BOOL+""+FORCE)

#+Add+googletest+directly+to+our+build.+This+adds
#+the+following+targets:+gtest,+gtest_main,+gmock
#+and+gmock_main
add_subdirectory(${CMAKE_BINARY_DIR}/googletest-src
+++++++++++++++++${CMAKE_BINARY_DIR}/googletest-build)

#+The+gtest/gmock+targets+carry+header+search+path
#+dependencies+automatically+when+using+CMake+2.8.11+or
#+later.+Otherwise+we+have+to+add+them+here+ourselves.
if+(CMAKE_VERSION+VERSION_LESS+2.8.11)
++include_directories("${gtest_SOURCE_DIR}/include"
++++++++++++++++++++++"${gmock_SOURCE_DIR}/include")
endif()

#+Now+simply+link+your+own+targets+against+gtest,+gmock,
#+etc.+as+appropriate|198430|然而，它看起来确实很老套。我想提出一个替代方案--使用Git子模块。|198431|cd+MyProject/dependencies/gtest
git+submodule+add+https://github.com/google/googletest.git
cd+googletest
git+checkout+release-1.8.0
cd+../../..
git+add+*
git+commit+-m+"Add+googletest"|198432|然后，在MyProject/dependencies/gtest/CMakeList.txt中，您可以执行以下操作：|198433|cmake_minimum_required(VERSION+3.3)

if(TARGET+gtest)+#+To+avoid+diamond+dependencies;+may+not+be+necessary+depending+on+you+project.
++++return()
endif()

add_subdirectory("googletest")|198434|我还没有广泛地尝试过，但它看起来更干净。|198435|编辑:这种方法有一个缺点:子目录可能运行您不想要的install()命令。This+post+has+an+approach+to+disable+them，但它有缺陷，对我不起作用。|198436|编辑2:如果您使用add_subdirectory("googletest"+EXCLUDE_FROM_ALL)，这似乎意味着默认情况下不使用子目录中的install()命令。|198437|entityMap|0|LINK|mutability|MUTABLE|url|https://crascit.com/2015/07/25/cmake-gtest/|1|https://stackoverflow.com/questions/35344132/cpack-exclude-install-commands-from-subdirectory-googletest-directory^0|0|9|0|0|0|H|0|0|0|E|0|0|0|0|4|16|0|0|0|P|9|11|15|1|0|9|1B|24|9|0^^$0|@$1|2|3|4|5|6|7|1E|8|@]|9|@$A|1F|B|1G|1|1H]]|C|$]]|$1|D|3|E|5|6|7|1I|8|@$A|1J|B|1K|F|G]]|9|@]|C|$]]|$1|H|3|I|5|J|7|1L|8|@]|9|@]|C|$K|L]]|$1|M|3|N|5|6|7|1M|8|@$A|1N|B|1O|F|G]]|9|@]|C|$]]|$1|O|3|P|5|J|7|1P|8|@]|9|@]|C|$K|L]]|$1|Q|3|R|5|6|7|1Q|8|@]|9|@]|C|$]]|$1|S|3|T|5|J|7|1R|8|@]|9|@]|C|$K|L]]|$1|U|3|V|5|6|7|1S|8|@$A|1T|B|1U|F|G]]|9|@]|C|$]]|$1|W|3|X|5|J|7|1V|8|@]|9|@]|C|$K|L]]|$1|Y|3|Z|5|6|7|1W|8|@]|9|@]|C|$]]|$1|10|3|11|5|6|7|1X|8|@$A|1Y|B|1Z|F|G]]|9|@$A|20|B|21|1|22]]|C|$]]|$1|12|3|13|5|6|7|23|8|@$A|24|B|25|F|G]|$A|26|B|27|F|G]]|9|@]|C|$]]|$1|14|3|-4|5|6|7|28|8|@]|9|@]|C|$]]]|15|$16|$5|17|18|19|C|$1A|1B]]|1C|$5|17|18|19|C|$1A|1D]]]]

<a href="https://crascit.com/2015/07/25/cmake-gtest/" rel="noreferrer">This post</a> has a reasonable answer:

<code>CMakeLists.txt.in</code>:

<pre><code>cmake_minimum_required(VERSION 2.8.2)

project(googletest-download NONE)

include(ExternalProject)
ExternalProject_Add(googletest
 GIT_REPOSITORY https://github.com/google/googletest.git
 GIT_TAG master
 SOURCE_DIR "${CMAKE_BINARY_DIR}/googletest-src"
 BINARY_DIR "${CMAKE_BINARY_DIR}/googletest-build"
 CONFIGURE_COMMAND ""
 BUILD_COMMAND ""
 INSTALL_COMMAND ""
 TEST_COMMAND ""
)
</code></pre>

<code>CMakeLists.txt</code>:

<pre><code># Download and unpack googletest at configure time
configure_file(CMakeLists.txt.in
 googletest-download/CMakeLists.txt)
execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
 WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-download )
execute_process(COMMAND ${CMAKE_COMMAND} --build .
 WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-download )

# Prevent GoogleTest from overriding our compiler/linker options
# when building with Visual Studio
set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)

# Add googletest directly to our build. This adds
# the following targets: gtest, gtest_main, gmock
# and gmock_main
add_subdirectory(${CMAKE_BINARY_DIR}/googletest-src
 ${CMAKE_BINARY_DIR}/googletest-build)

# The gtest/gmock targets carry header search path
# dependencies automatically when using CMake 2.8.11 or
# later. Otherwise we have to add them here ourselves.
if (CMAKE_VERSION VERSION_LESS 2.8.11)
 include_directories("${gtest_SOURCE_DIR}/include"
 "${gmock_SOURCE_DIR}/include")
endif()

# Now simply link your own targets against gtest, gmock,
# etc. as appropriate
</code></pre>

However it does seem quite hacky. I'd like to propose an alternative solution - use Git submodules.

<pre><code>cd MyProject/dependencies/gtest
git submodule add https://github.com/google/googletest.git
cd googletest
git checkout release-1.8.0
cd ../../..
git add *
git commit -m "Add googletest"
</code></pre>

Then in <code>MyProject/dependencies/gtest/CMakeList.txt</code> you can do something like:

<pre><code>cmake_minimum_required(VERSION 3.3)

if(TARGET gtest) # To avoid diamond dependencies; may not be necessary depending on you project.
 return()
endif()

add_subdirectory("googletest")
</code></pre>

I haven't tried this extensively yet but it seems cleaner.

Edit: There is a downside to this approach: The subdirectory might run <code>install()</code> commands that you don't want. <a href="https://stackoverflow.com/questions/35344132/cpack-exclude-install-commands-from-subdirectory-googletest-directory">This post has an approach to disable them</a> but it was buggy and didn't work for me.

Edit 2: If you use <code>add_subdirectory("googletest" EXCLUDE_FROM_ALL)</code> it seems means the <code>install()</code> commands in the subdirectory aren't used by default.

blocks|key|3035379|text|cmake的ExternalProject_Add确实可以使用，但我不喜欢它的地方是它在构建、连续轮询等过程中执行某些操作。我更喜欢在构建阶段建立项目，没有其他。我曾多次尝试重写ExternalProject_Add，不幸的是都没有成功。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3035380|然后我也尝试添加git子模块，但这会拖累整个git存储库，而在某些情况下，我只需要整个git存储库的子集。我已经检查过了-确实可以执行稀疏git结帐，但这需要单独的函数，我在下面写了这个函数。|3035381|#-----------------------------------------------------------------------------
#
#+Performs+sparse+(partial)+git+checkout
#
#+++into+${checkoutDir}+from+${url}+of+${branch}
#
#+List+of+folders+and+files+to+pull+can+be+specified+after+that.
#-----------------------------------------------------------------------------
function+(SparseGitCheckout+checkoutDir+url+branch)
++++if(EXISTS+${checkoutDir})
++++++++return()
++++endif()

++++message("-------------------------------------------------------------------")
++++message("sparse+git+checkout+to+${checkoutDir}...")
++++message("-------------------------------------------------------------------")

++++file(MAKE_DIRECTORY+${checkoutDir})

++++set(cmds+"git+init")
++++set(cmds+${cmds}+"git+remote+add+-f+origin+--no-tags+-t+master+${url}")
++++set(cmds+${cmds}+"git+config+core.sparseCheckout+true")

++++#+This+command+is+executed+via+file+WRITE
++++#+echo+<file+or+folder>+>>+.git/info/sparse-checkout")

++++set(cmds+${cmds}+"git+pull+--depth=1+origin+${branch}")

++++#+message("In+directory:+${checkoutDir}")

++++foreach(+cmd+${cmds})
++++++++message("-+${cmd}")
++++++++string(REPLACE+"+"+";"+cmdList+${cmd})

++++++++#message("Outfile:+${outFile}")
++++++++#message("Final+command:+${cmdList}")

++++++++if(pull+IN_LIST+cmdList)
++++++++++++string+(REPLACE+";"+"\n"+FILES+"${ARGN}")
++++++++++++file(WRITE+${checkoutDir}/.git/info/sparse-checkout+${FILES}+)
++++++++endif()

++++++++execute_process(
++++++++++++COMMAND+${cmdList}
++++++++++++WORKING_DIRECTORY+${checkoutDir}
++++++++++++RESULT_VARIABLE+ret
++++++++)

++++++++if(NOT+ret+EQUAL+"0")
++++++++++++message("error:+previous+command+failed,+see+explanation+above")
++++++++++++file(REMOVE_RECURSE+${checkoutDir})
++++++++++++break()
++++++++endif()
++++endforeach()

endfunction()


SparseGitCheckout(${CMAKE_BINARY_DIR}/catch_197+https://github.com/catchorg/Catch2.git+v1.9.7+single_include)
SparseGitCheckout(${CMAKE_BINARY_DIR}/catch_master+https://github.com/catchorg/Catch2.git+master+single_include)|code-block|syntax|javascript|3035382|我在下面添加了两个函数调用，只是为了说明如何使用该函数。|3035383|有些人可能不喜欢签出主/主干，因为那个主/主干可能是坏的-然后总是可以指定特定的标签。|3035384|在清除缓存文件夹之前，将只执行一次检出。|3035385|entityMap^0|6|J|2H|J|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]|$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Z|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|10|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|11|8|@]|D|@]|E|$]]|$1|O|3|P|5|6|7|12|8|@]|D|@]|E|$]]|$1|Q|3|R|5|6|7|13|8|@]|D|@]|E|$]]|$1|S|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|T|$]]

cmake's <code>ExternalProject_Add</code> indeed can used, but what I did not like about it - is that it performs something during build, continuous poll, etc... I would prefer to build project during build phase, nothing else. I have tried to override <code>ExternalProject_Add</code> in several attempts, unfortunately without success.

Then I have tried also to add git submodule, but that drags whole git repository, while in certain cases I need only subset of whole git repository. What I have checked - it's indeed possible to perform sparse git checkout, but that require separate function, which I wrote below.

<pre><code>#-----------------------------------------------------------------------------
#
# Performs sparse (partial) git checkout
#
# into ${checkoutDir} from ${url} of ${branch}
#
# List of folders and files to pull can be specified after that.
#-----------------------------------------------------------------------------
function (SparseGitCheckout checkoutDir url branch)
 if(EXISTS ${checkoutDir})
 return()
 endif()

 message("-------------------------------------------------------------------")
 message("sparse git checkout to ${checkoutDir}...")
 message("-------------------------------------------------------------------")

 file(MAKE_DIRECTORY ${checkoutDir})

 set(cmds "git init")
 set(cmds ${cmds} "git remote add -f origin --no-tags -t master ${url}")
 set(cmds ${cmds} "git config core.sparseCheckout true")

 # This command is executed via file WRITE
 # echo &lt;file or folder&gt; &gt;&gt; .git/info/sparse-checkout")

 set(cmds ${cmds} "git pull --depth=1 origin ${branch}")

 # message("In directory: ${checkoutDir}")

 foreach( cmd ${cmds})
 message("- ${cmd}")
 string(REPLACE " " ";" cmdList ${cmd})

 #message("Outfile: ${outFile}")
 #message("Final command: ${cmdList}")

 if(pull IN_LIST cmdList)
 string (REPLACE ";" "\n" FILES "${ARGN}")
 file(WRITE ${checkoutDir}/.git/info/sparse-checkout ${FILES} )
 endif()

 execute_process(
 COMMAND ${cmdList}
 WORKING_DIRECTORY ${checkoutDir}
 RESULT_VARIABLE ret
 )

 if(NOT ret EQUAL "0")
 message("error: previous command failed, see explanation above")
 file(REMOVE_RECURSE ${checkoutDir})
 break()
 endif()
 endforeach()

endfunction()


SparseGitCheckout(${CMAKE_BINARY_DIR}/catch_197 https://github.com/catchorg/Catch2.git v1.9.7 single_include)
SparseGitCheckout(${CMAKE_BINARY_DIR}/catch_master https://github.com/catchorg/Catch2.git master single_include)
</code></pre>

I have added two function calls below just to illustrate how to use the function.

Someone might not like to checkout master / trunk, as that one might be broken - then it's always possible to specify specific tag.

Checkout will be performed only once, until you clear the cache folder.

blocks|key|2822813|text|我正在寻找类似的解决方案。这里的回复和上面的教程都是信息性的。我研究了这里提到的帖子/博客，以成功地构建我的博客。我正在张贴完整的CMakeLists.txt为我工作。我想，作为初学者的基本模板，这将是很有帮助的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2822814|"CMakeLists.txt"|offset|length|style|CODE|2822815|cmake_minimum_required(VERSION+3.10.2)

#+Target+Project
project+(ClientProgram)

#+Begin:+Including+Sources+and+Headers
include_directories(include)
file+(GLOB+SOURCES+"src/*.c")
#+End:+Including+Sources+and+Headers


#+Begin:+Generate+executables
add_executable+(ClientProgram+${SOURCES})
#+End:+Generate+executables


#+This+Project+Depends+on+External+Project(s)+
include+(ExternalProject)

#+Begin:+External+Third+Party+Library
set+(libTLS+ThirdPartyTlsLibrary)
ExternalProject_Add+(${libTLS}
PREFIX++++++++++${CMAKE_CURRENT_BINARY_DIR}/${libTLS}
#+Begin:+Download+Archive+from+Web+Server
URL+++++++++++++http://myproject.com/MyLibrary.tgz
URL_HASH++++++++SHA1=<expected_sha1sum_of_above_tgz_file>
DOWNLOAD_NO_PROGRESS+ON
#+End:+Download+Archive+from+Web+Server

#+Begin:+Download+Source+from+GIT+Repository
#++++GIT_REPOSITORY++https://github.com/<project>.git
#++++GIT_TAG+++++++++<Refer+github.com+releases+->+Tags>
#++++GIT_SHALLOW+++++ON
#+End:+Download+Source+from+GIT+Repository

#+Begin:+CMAKE+Comamnd+Argiments
CMAKE_ARGS++++++-DCMAKE_INSTALL_PREFIX:PATH=${CMAKE_CURRENT_BINARY_DIR}/${libTLS}
CMAKE_ARGS++++++-DUSE_SHARED_LIBRARY:BOOL=ON
#+End:+CMAKE+Comamnd+Argiments++++
)

#+The+above+ExternalProject_Add(...)+construct+wil+take+care+of+\
#+1.+Downloading+sources
#+2.+Building+Object+files
#+3.+Install+under+DCMAKE_INSTALL_PREFIX+Directory

#+Acquire+Installation+Directory+of+
ExternalProject_Get_Property+(${libTLS}+install_dir)

#+Begin:+Importing+Headers+&+Library+of+Third+Party+built+using+ExternalProject_Add(...)
#+Include+PATH+that+has+headers+required+by+Target+Project
include_directories+(${install_dir}/include)

#+Import+librarues+from+External+Project+required+by+Target+Project
add_library+(lmytls+SHARED+IMPORTED)
set_target_properties+(lmytls+PROPERTIES+IMPORTED_LOCATION+${install_dir}/lib/libmytls.so)
add_library+(lmyxdot509+SHARED+IMPORTED)
set_target_properties(lmyxdot509+PROPERTIES+IMPORTED_LOCATION+${install_dir}/lib/libmyxdot509.so)

#+End:+Importing+Headers+&+Library+of+Third+Party+built+using+ExternalProject_Add(...)
#+End:+External+Third+Party+Library

#+Begin:+Target+Project+depends+on+Third+Party+Component
add_dependencies(ClientProgram+${libTLS})
#+End:+Target+Project+depends+on+Third+Party+Component

#+Refer+libraries+added+above+used+by+Target+Project
target_link_libraries+(ClientProgram+lmytls+lmyxdot509)|code-block|syntax|javascript|2822816|entityMap^0|0|0|G|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@$D|Q|E|R|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|S|8|@]|9|@]|A|$K|L]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

I was searching for similar solution. The replies here and the Tutorial on top is informative. I studied posts/blogs referred here to build mine successful. I am posting complete CMakeLists.txt worked for me. I guess, this would be helpful as a basic template for beginners.
<code>&quot;CMakeLists.txt&quot;</code>
<pre><code>cmake_minimum_required(VERSION 3.10.2)

# Target Project
project (ClientProgram)

# Begin: Including Sources and Headers
include_directories(include)
file (GLOB SOURCES &quot;src/*.c&quot;)
# End: Including Sources and Headers


# Begin: Generate executables
add_executable (ClientProgram ${SOURCES})
# End: Generate executables


# This Project Depends on External Project(s) 
include (ExternalProject)

# Begin: External Third Party Library
set (libTLS ThirdPartyTlsLibrary)
ExternalProject_Add (${libTLS}
PREFIX ${CMAKE_CURRENT_BINARY_DIR}/${libTLS}
# Begin: Download Archive from Web Server
URL http://myproject.com/MyLibrary.tgz
URL_HASH SHA1=&lt;expected_sha1sum_of_above_tgz_file&gt;
DOWNLOAD_NO_PROGRESS ON
# End: Download Archive from Web Server

# Begin: Download Source from GIT Repository
# GIT_REPOSITORY https://github.com/&lt;project&gt;.git
# GIT_TAG &lt;Refer github.com releases -&gt; Tags&gt;
# GIT_SHALLOW ON
# End: Download Source from GIT Repository

# Begin: CMAKE Comamnd Argiments
CMAKE_ARGS -DCMAKE_INSTALL_PREFIX:PATH=${CMAKE_CURRENT_BINARY_DIR}/${libTLS}
CMAKE_ARGS -DUSE_SHARED_LIBRARY:BOOL=ON
# End: CMAKE Comamnd Argiments 
)

# The above ExternalProject_Add(...) construct wil take care of \
# 1. Downloading sources
# 2. Building Object files
# 3. Install under DCMAKE_INSTALL_PREFIX Directory

# Acquire Installation Directory of 
ExternalProject_Get_Property (${libTLS} install_dir)

# Begin: Importing Headers &amp; Library of Third Party built using ExternalProject_Add(...)
# Include PATH that has headers required by Target Project
include_directories (${install_dir}/include)

# Import librarues from External Project required by Target Project
add_library (lmytls SHARED IMPORTED)
set_target_properties (lmytls PROPERTIES IMPORTED_LOCATION ${install_dir}/lib/libmytls.so)
add_library (lmyxdot509 SHARED IMPORTED)
set_target_properties(lmyxdot509 PROPERTIES IMPORTED_LOCATION ${install_dir}/lib/libmyxdot509.so)

# End: Importing Headers &amp; Library of Third Party built using ExternalProject_Add(...)
# End: External Third Party Library

# Begin: Target Project depends on Third Party Component
add_dependencies(ClientProgram ${libTLS})
# End: Target Project depends on Third Party Component

# Refer libraries added above used by Target Project
target_link_libraries (ClientProgram lmytls lmyxdot509)
</code></pre>

I have a Project A that exports a static library as a target:

<pre><code>install(TARGETS alib DESTINATION lib EXPORT project_a-targets)
install(EXPORT project_a-targets DESTINATION lib/alib)
</code></pre>

Now I want to use Project A as an external project from Project B and include its built targets:

<pre><code>ExternalProject_Add(project_a
 URL ...project_a.tar.gz
 PREFIX ${CMAKE_CURRENT_BINARY_DIR}/project_a
 CMAKE_ARGS -DCMAKE_INSTALL_PREFIX:PATH=&lt;INSTALL_DIR&gt;
)

include(${CMAKE_CURRENT_BINARY_DIR}/lib/project_a/project_a-targets.cmake)
</code></pre>

The problem is that the include file does not exist yet when CMakeLists of Project B is run.

Is there a way to make the include dependent on the external project being built?

Update:
I wrote a short <a href="https://mirkokiefer.com/cmake-by-example-f95eb47d45b1" rel="noreferrer">CMake by Example tutorial</a> based on this and other common problems I encountered.

CMake: How to build external projects and include their targets

Visual Studio

我有一个项目A，它导出一个静态库作为目标：install(TARGETS alib DESTINATION lib EXPORT project_a-targets)install(EXPORT project_a-targets DESTINATION lib/alib)现在我想使用项目A作为项目B的外部项目，并包括...

问CMake:如何构建外部项目并包含其目标
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