[CMake] cmake trouble
Hello:
I am using cmake for three months now.
but was trouble in a situation 。for details bellow: (in Windows,using Microsoft
Visual Studio 2008)
ADD_LIBRARY(test SHARED ${LIBTEST_SRC} ${LIBHELLO_SRC})
#ADD_LIBRARY(test STATIC ${LIBTEST_SRC} ${LIBHELLO_SRC})
#add executable
AUX_SOURCE_DIRECTORY(. FAN_SRC)
TARGET_LINK_LIBRARIES(fan test)
ADD_EXECUTABLE(fan ${FAN_SRC})
1.if i put TARGET_LINK_LIBRARIES(fan test) before ADD_EXECUTABLE command,this
does not work ,why??
2. but if i ADD_LIBRARY(test STATIC ${LIBTEST_SRC} ${LIBHELLO_SRC}) ，it is
ok，why ??
3.if i put TARGET_LINK_LIBRARIES(fan test) after ADD_EXECUTABLE command，it
works ,why ??
I am waiting for your help !!
With best wishes.
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Re: [CMake] cmake trouble
Hi,
On Mon, Oct 22, 2012 at 5:35 PM, 张峰 fangler2...@126.com wrote:
1.if i put TARGET_LINK_LIBRARIES(fan test) before ADD_EXECUTABLE
command,this does not work ,why??
Because until yout call add_executable(), the target name doesn't exist.
You have to use the target name as first parameter of
target_link_libraries().
2. but if i ADD_LIBRARY(test STATIC ${LIBTEST_SRC} ${LIBHELLO_SRC}) ，it
is ok，why ??
I don't understand the question.
3.if i put TARGET_LINK_LIBRARIES(fan test) after ADD_EXECUTABLE
command，it works ,why ??
For the reason I explained in 1.
Joel Lamotte
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[CMake] cmake trouble
Hello:
I am using cmake for three months now.
but was trouble in a situation 。for details bellow: (in Windows)
ADD_LIBRARY(test SHARED ${LIBTEST_SRC} ${LIBHELLO_SRC})
#ADD_LIBRARY(test STATIC ${LIBTEST_SRC} ${LIBHELLO_SRC})
#add executable
AUX_SOURCE_DIRECTORY(. FAN_SRC)
TARGET_LINK_LIBRARIES(fan test)
ADD_EXECUTABLE(fan ${FAN_SRC})
1.if i put TARGET_LINK_LIBRARIES(fan test) before ADD_EXECUTABLE command,this
does not work ,why??
2. but if i ADD_LIBRARY(test STATIC ${LIBTEST_SRC} ${LIBHELLO_SRC}) ，it is
ok，why ??
3.if i put TARGET_LINK_LIBRARIES(fan test) after ADD_EXECUTABLE command，it
works ,why ??
I am waiting for your help !!
With best wishes.
--
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Visit other Kitware open-source projects at
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Please keep messages on-topic and check the CMake FAQ at:
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Re: [CMake] cmake trouble
Hello,
First off, you cannot call both add_executable and add_library in the same
CMakeLists file. Here is what I can say about your other questions:
1. All commands that require a target have to come after you have created
the target via add_executable or add_library. This is simply because you need
to have a target before you can adds things to it.
2. I am not real sure why this would work. But, for common practices, you
should always call target_link_libraries after your call to add_library or
add_executable for the reason stated above.
3. Again, this is the same answer. It will work as long as you make the
call to the command after add_library or add_executable.
Hope this helps.
Eric
From: cmake-boun...@cmake.org [mailto:cmake-boun...@cmake.org] On Behalf Of ??
Sent: Monday, October 22, 2012 10:25 AM
To: cmake@cmake.org
Subject: [CMake] cmake trouble
Hello:
I am using cmake for three months now.
but was trouble in a situation 。for details bellow: (in Windows)
ADD_LIBRARY(test SHARED ${LIBTEST_SRC} ${LIBHELLO_SRC})
#ADD_LIBRARY(test STATIC ${LIBTEST_SRC} ${LIBHELLO_SRC})
#add executable
AUX_SOURCE_DIRECTORY(. FAN_SRC)
TARGET_LINK_LIBRARIES(fan test)
ADD_EXECUTABLE(fan ${FAN_SRC})
1.if i put TARGET_LINK_LIBRARIES(fan test) before ADD_EXECUTABLE command,this
does not work ,why??
2. but if i ADD_LIBRARY(test STATIC ${LIBTEST_SRC} ${LIBHELLO_SRC}) ，it is
ok，why ??
3.if i put TARGET_LINK_LIBRARIES(fan test) after ADD_EXECUTABLE command，it
works ,why ??
I am waiting for your help !!
With best
wishes.app:lj:%E6%AD%A4%E8%87%B4%E6%95%AC%E7%A4%BC?ljtype=blngljblngcont=0ljtran=With%20best%20%20wishes.
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Re: [CMake] cmake trouble
Hi, On Mon, Oct 22, 2012 at 6:04 PM, Eric Clark ecl...@ara.com wrote: First off, you cannot call both add_executable and add_library in the same CMakeLists file. I think there's something missing here, but its perfectly possible to have one or more library and executable targets specified in the same cmake file. So this works just fine: add_library(foo bar.cpp) add_executable(bar foo.cpp) There are build-systems that have such limitations, but cmake is not one. Andreas -- Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
Re: [CMake] cmake trouble
Eric Clark wrote: Hello, First off, you cannot call both add_executable and add_library in the same CMakeLists file. Here is what I can say about your other questions: Of course you can. 1. All commands that require a target have to come after you have created the target via add_executable or add_library. This is simply because you need to have a target before you can adds things to it. That is indeed correct. Eike -- signature.asc Description: This is a digitally signed message part. -- Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
Re: [CMake] cmake trouble
-Original Message- From: cmake-boun...@cmake.org [mailto:cmake-boun...@cmake.org] On Behalf Of Rolf Eike Beer Sent: Monday, October 22, 2012 12:11 PM To: cmake@cmake.org Subject: Re: [CMake] cmake trouble Eric Clark wrote: Hello, First off, you cannot call both add_executable and add_library in the same CMakeLists file. Here is what I can say about your other questions: Of course you can. Yes, but only if you call project() twice, correct? Maybe I should have been more specific. What I meant was that you cannot create two targets for the same project (i.e you cannot build an executable and a dll in the same project). In the code that was posted, there was no call to project between the call to add_library and add_executable. Certainly there is nothing wrong with calling project more than once in a list file, but I have found that it is a rare case that you want to do this... This could be just my experience, but I can only speak for what I know. I should have been more specific, but if you are going to say of course you can, you should probably also explain that this means you need two calls to project() as well because the code that was posted did not have two calls to project as far as what he posted... Please, feel free to correct me if I am wrong here... But, I tried this once and it did not work and after seeing what I had done, it didn't make sense either... Thanks, Eric 1. All commands that require a target have to come after you have created the target via add_executable or add_library. This is simply because you need to have a target before you can adds things to it. That is indeed correct. Eike -- -- Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
Re: [CMake] cmake trouble
Andreas, I just replied to a message from another gentleman on here and I may be way off base. But, I tried to do this once and it did not work. The only way that I could get it to work was to add another project() call between the two... I could have had some other issues because it has been quite a while since I had this problem and I do not remember the specific error that I got, so I am by no means saying anyone is wrong because I am sure that many of you are way more familiar with CMake than I am, this is a learning experience for me as well. I was just trying to help the guy out and when I looked at his original posting I saw test as the same name being passed to add_executable and add_library... I went back to look at the code again and he did have one called test and the other called fan that was my mistake and my misreading it. My apologies for saying the wrong thing, I was only trying to help... Eric -Original Message- From: Andreas Pakulat [mailto:ap...@gmx.de] Sent: Monday, October 22, 2012 12:17 PM To: Eric Clark Cc: 张峰; cmake@cmake.org Subject: Re: [CMake] cmake trouble Hi, On Mon, Oct 22, 2012 at 6:04 PM, Eric Clark ecl...@ara.com wrote: First off, you cannot call both add_executable and add_library in the same CMakeLists file. I think there's something missing here, but its perfectly possible to have one or more library and executable targets specified in the same cmake file. So this works just fine: add_library(foo bar.cpp) add_executable(bar foo.cpp) There are build-systems that have such limitations, but cmake is not one. Andreas -- Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
Re: [CMake] cmake trouble
-Original Message- From: Andreas Pakulat [mailto:ap...@gmx.de] Sent: Monday, October 22, 2012 12:17 PM To: Eric Clark Cc: 张峰; cmake@cmake.org Subject: Re: [CMake] cmake trouble Hi, On Mon, Oct 22, 2012 at 6:04 PM, Eric Clark ecl...@ara.com wrote: First off, you cannot call both add_executable and add_library in the same CMakeLists file. I think there's something missing here, but its perfectly possible to have one or more library and executable targets specified in the same cmake file. So this works just fine: add_library(foo bar.cpp) add_executable(bar foo.cpp) Sorry, me again, but I have a question... If I do use the above code using a Visual Studio generator, will this create to separate projects in Visual Studio? There are build-systems that have such limitations, but cmake is not one. Andreas -- Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
Re: [CMake] cmake trouble
Eric Clark wrote: From: Andreas Pakulat [mailto:ap...@gmx.de] On Mon, Oct 22, 2012 at 6:04 PM, Eric Clark ecl...@ara.com wrote: First off, you cannot call both add_executable and add_library in the same CMakeLists file. I think there's something missing here, but its perfectly possible to have one or more library and executable targets specified in the same cmake file. So this works just fine: add_library(foo bar.cpp) add_executable(bar foo.cpp) Sorry, me again, but I have a question... If I do use the above code using a Visual Studio generator, will this create to separate projects in Visual Studio? You will have one solution file, but 2 projects in it. Eike -- signature.asc Description: This is a digitally signed message part. -- Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
Re: [CMake] cmake trouble
Eric Clark wrote: Eric Clark wrote: Hello, First off, you cannot call both add_executable and add_library in the same CMakeLists file. Here is what I can say about your other questions: Of course you can. Yes, but only if you call project() twice, correct? No, even if you don't call project at all (but you need to call project() in a higher level CMakeLists.txt then). Maybe I should have been more specific. What I meant was that you cannot create two targets for the same project (i.e you cannot build an executable and a dll in the same project). In the code that was posted, there was no call to project between the call to add_library and add_executable. Certainly there is nothing wrong with calling project more than once in a list file, but I have found that it is a rare case that you want to do this... This could be just my experience, but I can only speak for what I know. The only thing that does not work then is the projectname_SOURCE_DIR variable that is set by CMake when you call project(). But otherwise everything is fine. Eike -- signature.asc Description: This is a digitally signed message part. -- Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
Re: [CMake] cmake trouble
-Original Message- From: cmake-boun...@cmake.org [mailto:cmake-boun...@cmake.org] On Behalf Of Rolf Eike Beer Sent: Monday, October 22, 2012 12:48 PM To: cmake@cmake.org Subject: Re: [CMake] cmake trouble Eric Clark wrote: From: Andreas Pakulat [mailto:ap...@gmx.de] On Mon, Oct 22, 2012 at 6:04 PM, Eric Clark ecl...@ara.com wrote: First off, you cannot call both add_executable and add_library in the same CMakeLists file. I think there's something missing here, but its perfectly possible to have one or more library and executable targets specified in the same cmake file. So this works just fine: add_library(foo bar.cpp) add_executable(bar foo.cpp) Sorry, me again, but I have a question... If I do use the above code using a Visual Studio generator, will this create to separate projects in Visual Studio? You will have one solution file, but 2 projects in it. Thank you Eike! Forgive my ignorance here... but what will it use to name the two projects? Eike -- -- Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
Re: [CMake] cmake trouble
Eric Clark wrote: -Original Message- From: cmake-boun...@cmake.org [mailto:cmake-boun...@cmake.org] On Behalf Of Rolf Eike Beer Sent: Monday, October 22, 2012 12:48 PM To: cmake@cmake.org Subject: Re: [CMake] cmake trouble Eric Clark wrote: From: Andreas Pakulat [mailto:ap...@gmx.de] On Mon, Oct 22, 2012 at 6:04 PM, Eric Clark ecl...@ara.com wrote: First off, you cannot call both add_executable and add_library in the same CMakeLists file. I think there's something missing here, but its perfectly possible to have one or more library and executable targets specified in the same cmake file. So this works just fine: add_library(foo bar.cpp) add_executable(bar foo.cpp) Sorry, me again, but I have a question... If I do use the above code using a Visual Studio generator, will this create to separate projects in Visual Studio? You will have one solution file, but 2 projects in it. Thank you Eike! Forgive my ignorance here... but what will it use to name the two projects? The name of the target, i.e. the first argument to add_library() and add_executable(). Eike -- signature.asc Description: This is a digitally signed message part. -- Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
Re: [CMake] cmake trouble
-Original Message- From: cmake-boun...@cmake.org [mailto:cmake-boun...@cmake.org] On Behalf Of Rolf Eike Beer Sent: Monday, October 22, 2012 12:51 PM To: cmake@cmake.org Subject: Re: [CMake] cmake trouble Eric Clark wrote: -Original Message- From: cmake-boun...@cmake.org [mailto:cmake-boun...@cmake.org] On Behalf Of Rolf Eike Beer Sent: Monday, October 22, 2012 12:48 PM To: cmake@cmake.org Subject: Re: [CMake] cmake trouble Eric Clark wrote: From: Andreas Pakulat [mailto:ap...@gmx.de] On Mon, Oct 22, 2012 at 6:04 PM, Eric Clark ecl...@ara.com wrote: First off, you cannot call both add_executable and add_library in the same CMakeLists file. I think there's something missing here, but its perfectly possible to have one or more library and executable targets specified in the same cmake file. So this works just fine: add_library(foo bar.cpp) add_executable(bar foo.cpp) Sorry, me again, but I have a question... If I do use the above code using a Visual Studio generator, will this create to separate projects in Visual Studio? You will have one solution file, but 2 projects in it. Thank you Eike! Forgive my ignorance here... but what will it use to name the two projects? The name of the target, i.e. the first argument to add_library() and add_executable(). Awesome! Thank you for the answers and the quick reply! I have only been using CMake for a little over a year and again I am sorry for posting an incorrect answer. I always thought that I had to have one project() call for each add_executable and/or add_library. It is very good to know that that is not the case. However, I am curious if you think it is good practice to do such a thing? Eike -- -- Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
