On Oct 4, 2013, at 9:39 PM, Craig Treleaven <ctrelea...@cogeco.ca> wrote:

> I actually don't know how the test _can succeed_ with XCode 5?  There is no 
> '-L' flag to indicate that the library is under /opt/local/lib.

MacPorts sets the LIBRARY_PATH environment variable in the configure phase, 
which sufficiently recent compilers take into account when linking. I don't 
know exactly when Clang started respecting it.

vq
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