: Specific directory to store the downloaded file.
Using ExternalProject to download a header-only library - Code cmake externalproject download only
While ExternalProject_Add is powerful, it has a major limitation: it runs at . This means the files aren't available until you actually start compiling. : Specific directory to store the downloaded file
To force ExternalProject_Add to stop after the download (and extraction) step, you must explicitly disable the subsequent steps by setting their commands to an empty string. To force ExternalProject_Add to stop after the download
When downloading files, you often need control over where they go and how they are handled:
include(ExternalProject) ExternalProject_Add(my_assets # 1. Download Options URL "https://example.com" URL_HASH SHA256=abcdef123456... # Highly recommended for caching # 2. Disable standard build steps CONFIGURE_COMMAND "" BUILD_COMMAND "" INSTALL_COMMAND "" TEST_COMMAND "" ) Use code with caution. Key Configuration Options
: Set to TRUE if you want to keep the archive (like a .tar.gz or .zip ) as-is rather than unpacking it.