http://webglimpse.net/developers/macos-notes.txt
I was working on building Mozilla on OS X and kept getting jammed on this error:
ld: can’t locate file for: -ldl
The libdl.dylib and libdl.a libraries can be downloaded as a package from
http://star.mfn.unipmn.it/osxgnu/Libraries/dlcompat-10505X.pkg.sit
Double-click on the icon and the libraries will install in /usr/local/lib
Glimpse then installs and runs without incident.
That solved it. I thought dlcompat was part of fink’s base files, but evidently something else is wrong.