I did so and found the following strange behaviour link_directories( /opt/XXX/lib ) -> no effect but link_directories( /opt/ ) -> -L/opt (?!)
Volker On Wed, Sep 17, 2014 at 1:32 PM, J Decker <d3c...@gmail.com> wrote: > can't just add link_directories( /opt/XXX/lib ) ? > > On Wed, Sep 17, 2014 at 3:58 AM, Nils Gladitz <nilsglad...@gmail.com> > wrote: > >> On 09/17/2014 12:29 PM, Volker Pilipp wrote: >> >>> I have encountered the following problem with cmake 3.0.1. >>> Under certain circumstances TARGET_LINK_LIBRARIES replaces >>> "/path/to/libXXX.so" by "-lXXX". The problem occurred when I used a >>> non-standard compiler at /opt/XXX/bin/g++ and added the library >>> /opt/XXX/lib/libXXX.so to TARGET_LINK_LIBRARIES. >>> In particular CMakeLists.txt reads: >>> >>> "SET(CMAKE_CXX_COMPILER /opt/XXX/bin/g++) >>> CMAKE_MINIMUM_REQUIRED(VERSION 3.0.0) >>> PROJECT(XXX) >>> add_executable(xxx xxx.cpp) >>> target_link_libraries(xxx /opt/XXX/lib/libXXX.so)" >>> >>> When running make VERBOSE=1 produces output like >>> >>> /opt/XXX/bin/g++ (...) -lXXX >>> >>> which is not the same as >>> /opt/XXX/bin/g++ (...) /opt/XXX/lib/libXXX.so >>> >> >> I think CMake reverts to linking by name if either the library is in an >> implicit linker directory (e.g. a directory the linker searches by default) >> or if the shared library does not have an SONAME. >> >> Which library does -lXXX resolve to? >> e.g. why aren't the two command lines equivalent for you? >> >> Specifically which library does the linker (ld) pick up; >> not the runtime loader (ld.so). >> >> Nils >> >> >> -- >> >> Powered by www.kitware.com >> >> Please keep messages on-topic and check the CMake FAQ at: >> http://www.cmake.org/Wiki/CMake_FAQ >> >> Kitware offers various services to support the CMake community. For more >> information on each offering, please visit: >> >> CMake Support: http://cmake.org/cmake/help/support.html >> CMake Consulting: http://cmake.org/cmake/help/consulting.html >> CMake Training Courses: http://cmake.org/cmake/help/training.html >> >> Visit other Kitware open-source projects at http://www.kitware.com/ >> opensource/opensource.html >> >> Follow this link to subscribe/unsubscribe: >> http://public.kitware.com/mailman/listinfo/cmake >> > > -- ************************************************** Volker Pilipp Software & IT Technologies DECTRIS Ltd. Neuenhoferstr. 107 5400 Baden Switzerland +41 56 500 2100 general +41 56 500 2101 fax +41 56 500 2115 direct volker.pil...@dectris.com www.dectris.com ************************************************** Confidentiality Note This message is intended only for the use of the named recipient(s) and may contain confidential and/or privileged information. If you are not the intended recipient, please contact the sender and delete the message. Any unauthorized use of the information contained in this message is prohibited.
-- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake