I'v found a way to enable openmp for a few target only with target_link_libraries : I created an imported interface OpenMP and setted the property INTERFACE_COMPILE_OPTIONS
2016-04-13 12:16 GMT+02:00 Matějů Miroslav, Ing. <mateju.miros...@azd.cz>: > The page I linked says /openmp is a compiler flag (not linker flag), so > adding it to CMAKE_CXX_FLAGS instead of LINK_FLAGS makes perfect sense. > > > > Miroslav > > > > *From:* Benjamin Ballet [mailto:bbal...@ivsweb.com] > *Sent:* Wednesday, April 13, 2016 11:28 AM > *To:* Matějů Miroslav, Ing. > *Cc:* cmake@cmake.org > *Subject:* Re: [CMake] issue with target_link_libraries and MSVC > > > > Ho yes, my bad, however there is still the same issue with forward slashes > > > > I receive the flag with FindOpenMP module. It's sad we can't do : > > target_link_libraries(... ${OpenMP_CXX_FLAGS}) for a few target > > > > In the end I add the flags for the whole project : > > set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}") > > > > 2016-04-13 7:54 GMT+02:00 Matějů Miroslav, Ing. <mateju.miros...@azd.cz>: > > Hi Benjamin, > > > > MSVC flags start with “forward” slashes: / (However, MSVC also accepts > hyphens (-) in my experience.) > > Documentation for /openmp flag: > https://msdn.microsoft.com/library/fw509c3b.aspx > > > > Best regards, > > Miroslav > > > > *From:* CMake [mailto:cmake-boun...@cmake.org] *On Behalf Of *Benjamin > Ballet via CMake > *Sent:* Tuesday, April 12, 2016 5:30 PM > *To:* cmake@cmake.org > *Subject:* [CMake] issue with target_link_libraries and MSVC > > > > I'm trying to add the openmp flag to a target with target_link_libraries. > > \openmp is interpreted as a file name and visual try to link to \openmp.obj > > > > The documentation state that target_link_libraries see an item as a flag > if it start with - but MSVC flags start with \ > > > > Is there a way to add a link flags to a target with target_link_libraries > and MSVC ? > > > > Thank you all > > > > -- > > *Benjamin BALLET* > Ingénieur R&D > > > *ACTIVISU* > > 19, rue Klock - 92110 Clichy > > *> Standard Tél* : 01 44 69 37 37 > > *>* www.activisu.com > > > > > > -- > > *Benjamin BALLET* > Ingénieur R&D > > > *ACTIVISU* > > 19, rue Klock - 92110 Clichy > > *> Standard Tél* : 01 44 69 37 37 > > *>* www.activisu.com > -- *Benjamin BALLET* Ingénieur R&D *ACTIVISU* 19, rue Klock - 92110 Clichy *> Standard Tél* : 01 44 69 37 37 *>* www.activisu.com
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