ld: cannot find -lltdl

When I build a package, linking fails with

/usr/bin/ld: cannot find -lltdl
collect2: ld returned 1 exit status

This happens because a symbolic link is absent

/usr/lib/libltdl.so -> /usr/lib/libltdl.so.7.x

This is solved by

yum install libtool-ltdl-devel