[CMake] adding external project

I have been reading this: https://cmake.org/cmake/help/v3.0/module/ExternalProject.html trying to add sdl external project but I am having issues. I created a new cmake project to test. I already downloaded the sdl library and can build it correctly by manually calling cmake commands but this

Re: [CMake] adding external project

oh, that was it a typo! A few more questions. I build the project like this: ExternalProject_Add(sdl HG_REPOSITORY http://hg.libsdl.org/SDL UPDATE_COMMAND "" CMAKE_ARGS -DSDL_STATIC:BOOL=FALSE -DCMAKE_INSTALL_PREFIX:PATH=${CMAKE_BINARY_DIR}/lib SOURCE_DIR

Re: [CMake] adding external project

What's the word "clone" doing in there? That should be a URL, not command parameters. On Tue, Dec 15, 2015 at 2:01 AM, Owen Hogarth II wrote: > I have been reading this: > https://cmake.org/cmake/help/v3.0/module/ExternalProject.html > > trying to add sdl external project

Re: [CMake] adding external project

I think the issue you are running into is order of execution - when using external projects it is often a good idea to have all the ExternalProject_Add commands in a superproject file with your own project source directory as one of the external projects. This way you can use the DEPENDS parameter

[CMake] Adding (external project) dependency to interface target

My project uses the external project functionality to download and install a headers-only library. I use an interface library to import that library dependency to my project. I'd like to add a dependency from the external project target to the interface library to trigger the library downloading