Several Linux distributions have specific commands to download build requires of a package. For example, Debian and its derivatives have apt-get build-dep; in OpenSUSE is zypper si -d; Fedora have yum-builddep; etc.
The command is:
urpmi –buildrequires <package.src.rpm>
Remember, there are two hyphens in buildrequires option. You must to substitute <package.src.rpm> for the src.rpm package address. For example, to download Choqok build requires you uses::
urpmi –buildrequires ftp://mageia.c3sl.ufpr.br/mageia/distrib/cauldron/SRPMS/core/release/choqok-1.3-5.mga3.src.rpm
To find the SRPM package you must visit a repository of your distro and copy the complete package name. For example, there is a Tier 1 repository to Mageia in C3SL, the link is http://mageia.c3sl.ufpr.br/mageia/distrib/cauldron/SRPMS/.