I used CMake's ExternalProject_Add to download and build boost in my project. The URL I used is 'http://sourceforge.net/projects/boost/files/boost/1.55.0/boost_1_55_0.zip/download' and it works. However I got an error several days ago like:
CMake Error: Problem with archive_read_open_file(): Unrecognized archive format
It seems that what I download by CMake becomes 'HTML document, ASCII text' rather than 'Zip archive data, at least v2.0 to extract'. Could you tell me which URL should I use in ExternalProject_Add?