blocks|key|1208691|text|下面是正确的答案：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1208692|ADD_EXECUTABLE(your_executable+${source_files})

TARGET_LINK_LIBRARIES(+your_executable
pthread
)|code-block|syntax|javascript|1208693|等同于|1208694|-lpthread|1208695|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Here is the right anwser:

<pre><code>ADD_EXECUTABLE(your_executable ${source_files})

TARGET_LINK_LIBRARIES( your_executable
pthread
)
</code></pre>

equivalent to 

<pre><code>-lpthread
</code></pre>

blocks|key|1208794|text|下面的代码应该是干净的(使用find_package)和工作的(+find模块称为FindThreads)：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1208795|cmake_minimum_required+(VERSION+2.6)+
find_package+(Threads)
add_executable+(myapp+main.cpp+...)
target_link_libraries+(myapp+${CMAKE_THREAD_LIBS_INIT})|code-block|syntax|javascript|1208796|entityMap^0|E|C|15|B|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

The following should be clean (using <code>find_package</code>) and work (the find module is called <code>FindThreads</code>):

<pre><code>cmake_minimum_required (VERSION 2.6) 
find_package (Threads)
add_executable (myapp main.cpp ...)
target_link_libraries (myapp ${CMAKE_THREAD_LIBS_INIT})
</code></pre>

blocks|key|1208865|text|@Manuel是其中的一部分。您还可以添加编译器选项，如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1208866|如果您有CMake+3.1.0%2B、this+becomes+even+easier|offset|length|1208867|set(THREADS_PREFER_PTHREAD_FLAG+ON)
find_package(Threads+REQUIRED)
target_link_libraries(my_app+PRIVATE+Threads::Threads)|code-block|syntax|javascript|1208868|如果您使用的是CMake+2.8.12%2B，则可以将其简化为：|1208869|find_package(Threads+REQUIRED)
if(THREADS_HAVE_PTHREAD_ARG)
++target_compile_options(my_app+PUBLIC+"-pthread")
endif()
if(CMAKE_THREAD_LIBS_INIT)
++target_link_libraries(my_app+"${CMAKE_THREAD_LIBS_INIT}")
endif()|1208870|较早的CMake版本可能需要：|1208871|find_package(Threads+REQUIRED)
if(THREADS_HAVE_PTHREAD_ARG)
++set_property(TARGET+my_app+PROPERTY+COMPILE_OPTIONS+"-pthread")
++set_property(TARGET+my_app+PROPERTY+INTERFACE_COMPILE_OPTIONS+"-pthread")
endif()
if(CMAKE_THREAD_LIBS_INIT)
++target_link_libraries(my_app+"${CMAKE_THREAD_LIBS_INIT}")
endif()|1208872|如果你想在CMake+3.1%2B中使用前两种方法中的一种，你也需要在那里使用set(THREADS_PREFER_PTHREAD_FLAG+ON)。|style|CODE|1208873|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/Kitware/CMake/blob/v3.1.0/Modules/FindThreads.cmake#L207^0|0|H|O|0|0|0|0|0|0|0|11|Z|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|15|8|@]|9|@$D|16|E|17|1|18]]|A|$]]|$1|F|3|G|5|H|7|19|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|1A|8|@]|9|@]|A|$]]|$1|M|3|N|5|H|7|1B|8|@]|9|@]|A|$I|J]]|$1|O|3|P|5|6|7|1C|8|@]|9|@]|A|$]]|$1|Q|3|R|5|H|7|1D|8|@]|9|@]|A|$I|J]]|$1|S|3|T|5|6|7|1E|8|@$D|1F|E|1G|U|V]]|9|@]|A|$]]|$1|W|3|-4|5|6|7|1H|8|@]|9|@]|A|$]]]|X|$Y|$5|Z|10|11|A|$12|13]]]]

@Manuel was part way there. You can add the compiler option as well, like this:

If you have CMake 3.1.0+, <a href="https://github.com/Kitware/CMake/blob/v3.1.0/Modules/FindThreads.cmake#L207" rel="noreferrer">this becomes even easier</a>:

<pre><code>set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads REQUIRED)
target_link_libraries(my_app PRIVATE Threads::Threads)
</code></pre>

If you are using CMake 2.8.12+, you can simplify this to:

<pre><code>find_package(Threads REQUIRED)
if(THREADS_HAVE_PTHREAD_ARG)
 target_compile_options(my_app PUBLIC "-pthread")
endif()
if(CMAKE_THREAD_LIBS_INIT)
 target_link_libraries(my_app "${CMAKE_THREAD_LIBS_INIT}")
endif()
</code></pre>

Older CMake versions may require:

<pre><code>find_package(Threads REQUIRED)
if(THREADS_HAVE_PTHREAD_ARG)
 set_property(TARGET my_app PROPERTY COMPILE_OPTIONS "-pthread")
 set_property(TARGET my_app PROPERTY INTERFACE_COMPILE_OPTIONS "-pthread")
endif()
if(CMAKE_THREAD_LIBS_INIT)
 target_link_libraries(my_app "${CMAKE_THREAD_LIBS_INIT}")
endif()
</code></pre>

If you want to use one of the first two methods with CMake 3.1+, you will need <code>set(THREADS_PREFER_PTHREAD_FLAG ON)</code> there too.

blocks|key|1208937|text|上面的target_compile_options解决方案是错误的，它不会链接库。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1208938|使用：|1208939|SET(CMAKE_C_FLAGS_RELEASE+"${CMAKE_C_FLAGS_RELEASE}+-pthread")|1208940|或|1208941|target_link_libraries(XXX+PUBLIC+pthread)|1208942|1208943|set_target_properties(XXX+PROPERTIES+LINK_LIBRARIES+-pthread)|1208944|entityMap^0|3|M|0|0|0|1Q|0|0|0|15|0|0|0|1P|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|V|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|W|8|@$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|Z|8|@]|D|@]|E|$]]|$1|L|3|M|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@]|E|$]]|$1|N|3|K|5|6|7|13|8|@]|D|@]|E|$]]|$1|O|3|P|5|6|7|14|8|@$9|15|A|16|B|C]]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|17|8|@]|D|@]|E|$]]]|R|$]]

<code>target_compile_options</code> solution above is wrong, it won't link the library.
Use:
<code>SET(CMAKE_C_FLAGS_RELEASE &quot;${CMAKE_C_FLAGS_RELEASE} -pthread&quot;)</code>
OR
<code>target_link_libraries(XXX PUBLIC pthread)</code>
OR
<code>set_target_properties(XXX PROPERTIES LINK_LIBRARIES -pthread)</code>

I'm running <code>RHEL 5.1</code> and use <code>gcc</code>.

How I tell <code>cmake</code> to add <code>-pthread</code> to compilation and linking?

cmake and libpthread

编译器

我正在运行RHEL 5.1并使用gcc。如何告诉cmake将-pthread添加到编译和链接中？

问cmake和libpthread
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