Is there no interest in this differing behavior between Linux and Windows? I'm a little worried that CMake doesn't produce the same results in both situations. Aren't those kind of things bugs?
If no one knows the answer off the top of their head, are there some debugging tips or avenues of investigation anyone could share? ------------------------------------------------------------- Aaron Wright From: [email protected] To: Michael Wild <[email protected]> Cc: CMake List <[email protected]> Date: 04/22/2010 01:38 PM Subject: Re: [CMake] Why is this custom command run twice? Sent by: [email protected] Well, Michael is right, it does work right in Linux. I guess the nature of the question changes slightly then to become, what I'm I not doing right for Visual Studio 9 2008, but that works in Linux? ------------------------------------------------------------- Aaron Wright From: Michael Wild <[email protected]> To: [email protected] Cc: CMake List <[email protected]> Date: 04/22/2010 01:29 PM Subject: Re: [CMake] Why is this custom command run twice? Works fine for me, sorry to say ;-) Michael On 22. Apr, 2010, at 17:49 , [email protected] wrote: > Interesting. I had a little typo in the first example, here's another one. > You only need a file called "generated.txt.in" next to the CMakeLists.txt > file. > > > CMAKE_MINIMUM_REQUIRED(VERSION 2.8) > > PROJECT(quick_test) > > ADD_CUSTOM_COMMAND( > OUTPUT "${PROJECT_BINARY_DIR}/generated.txt" > COMMAND ${CMAKE_COMMAND} -E copy > "${PROJECT_SOURCE_DIR}/generated.txt.in" > "${PROJECT_BINARY_DIR}/generated.txt" > DEPENDS "${PROJECT_SOURCE_DIR}/generated.txt.in") > > ADD_CUSTOM_COMMAND( > OUTPUT "${PROJECT_BINARY_DIR}/generated_used.stamp" > COMMAND ${CMAKE_COMMAND} -E touch > "${PROJECT_BINARY_DIR}/generated_used.stamp" > DEPENDS "${PROJECT_BINARY_DIR}/generated.txt" > COMMENT "Using generated.txt") > > ADD_CUSTOM_TARGET( > ${PROJECT_NAME} > DEPENDS "${PROJECT_BINARY_DIR}/generated_used.stamp") > > > This builds ok the first time, but then change the "generated.txt.in" and > run the build twice and the second time you'll see "Using generated.txt" > again, which I don't want to see. I've tried VS 2008 and NMake, using > CMake 2.8 and 2.8.1. > ------------------------------------------------------------- > Aaron Wright > > > > > From: > Michael Wild <[email protected]> > To: > [email protected] > Cc: > [email protected] > Date: > 04/21/2010 11:41 PM > Subject: > Re: [CMake] Why is this custom command run twice? > Sent by: > [email protected] > > > > > On 22. Apr, 2010, at 5:12 , [email protected] wrote: > >> I'm trying to do something a little weird, and I'm almost there but not >> quite. I'm trying to generate a file and then run a command based on > that >> file. I only want the command to run when the file changes and thus the >> generated file changes. Instead the first build I get both custom > commands >> run, and then on a second build, the second custom command runs again, >> which is not what I want. >> >> This is what I got (just an example): >> >> >> ADD_CUSTOM_COMMAND( >> OUTPUT "${PROJECT_BINARY_DIR}/generated.txt" >> COMMAND ${CMAKE_COMMAND} -E touch > "${PROJECT_BINARY_DIR}/generated.txt" >> DEPENDS "${PROJECT_SOURCE_DIR}/generated.txt") >> >> ADD_CUSTOM_COMMAND( >> OUTPUT "${PROJECT_BINARY_DIR}/generated_used.stamp" >> COMMAND ${CMAKE_COMMAND} -E touch >> "${PROJECT_BINARY_DIR}/generated_used.stamp" >> DEPENDS "${PROJECT_BINARY_DIR}/generated.txt" >> COMMENT "Using generated.txt") >> >> ADD_CUSTOM_TARGET( >> ${PROJECT_NAME} >> DEPENDS "${PROJECT_BINARY_DIR}/generated_used.stamp") >> >> >> What I'm I missing? Thanks > > Your example works fine for me (using CMake 2.8.1 and Unix Makefiles > generator on Mac OS X 10.6.2). > > Michael > > _______________________________________________ > 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 > _______________________________________________ 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
_______________________________________________ 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
