CMake Error at src/include/record/CMakeLists.txt:28 (target_include_directories): Cannot specify include directories for imported target "portaudio".
is the problem that externalProject_add only is executed when make is executed and not when cmake is executed’? what is `portaudio` here referring to? > Den 29. okt. 2017 kl. 02.19 skrev Craig Scott <[email protected]>: > > > > On Sun, Oct 29, 2017 at 10:36 AM, Carlton Banks <[email protected] > <mailto:[email protected]>> wrote: > I seem to have some problems executing one of my submodules cmakelist. > > MESSAGE(“In record CMAKELIST”) > > # Include externalproject {portaudio} if lib/portaudio don't exist. > MESSAGE(“Download external project”) > > INCLUDE(ExternalProject) > ExternalProject_Add(project_portaudio > GIT_REPOSITORY https://git.assembla.com/portaudio.git > <https://git.assembla.com/portaudio.git> > PREFIX lib/portaudio > CONFIGURE_COMMAND <SOURCE_DIR>/configure > BUILD_IN_SOURCE 1 > BUILD_COMMAND make > INSTALL_COMMAND sudo make install > ) > ExternalProject_Get_Property(project_portaudio BINARY_DIR) > ExternalProject_Get_Property(project_portaudio SOURCE_DIR) > > SET(portaudio_lib_dir "${BINARY_DIR}/lib/.libs") > SET(portaudio_inc_dir "${SOURCE_DIR}/include") > > add_library(record STATIC record.cpp record.h) > add_library(libaudio libportaudio.a PATHS ${portaudio_lib_dir}) > > What is this second add_library() command intended to do? I'm guessing you > probably instead want to be doing something like this (untested, but > hopefully in the ballpark): > > add_library(portaudio STATIC IMPORTED) > set_target_properties(portaudio PROPERTIES > IMPORTED_LOCATION ${BINARY_DIR}/lib/.libs/libportaudio.a > ) > target_include_directories(portaudio INTERFACE > ${SOURCE_DIR}/include > ) > add_dependencies(portaudio project_portaudio) # Not sure if this is > allowed for imported targets though > > I don't recall off the top of my head whether STATIC IMPORTED or INTERFACE > IMPORTED would be the right way to call add_library() in the above, so try > the latter if the former doesn't work for you. > > > > > > # > # this makes sure we have compiler flags that allow class::class() = default > (>= C++11) > target_compile_features(record PUBLIC cxx_defaulted_functions) > > > > > target_include_directories(record PUBLIC ${CMAKE_CURRENT_SOURCE_DIR} > ${project_portaudio}) > > You won't need this if you define the portaudio imported library as per my > example above. > > > > > It cannot find libportaudio.a as externalproject_add() is not being executed, > the command it executes add_library, which fails as the project has not been > downloaded… > > > what is wrong here? > > The reason for this specific problem is that there's no dependency > relationship between the project_portaudio target defined by the > ExternalProject_Add() call and the record target. Such a relationship is only > created through a suitable call to target_link_libraries() or > add_dependencies(), or through arguments like DEPENDS for commands that offer > such features (e.g. add_custom_target() and add_custom_command()). > > > -- > Craig Scott > Melbourne, Australia > https://crascit.com <https://crascit.com/>
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