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Problem finding GCAL on ubuntu/precise

 

I've a problem finding (enabling) CGAL with dolfin using the latest dorsal
on ubuntu 12.04. Not sure if it's a dorsal thing, or if it's something in
the cmake files (in dolfin).

The relevant output is:
  -- Checking for package 'CGAL'
  -- Performing Test CGAL_TEST_RUNS
  -- Performing Test CGAL_TEST_RUNS - Failed
  -- CGAL could not be found. Be sure to set CGAL_DIR (missing:
 CGAL_TEST_RUNS) (Required is at least version "3.8")

In CMakeFiles/CMakeError.log, this seems to be the error message of the
failing test:
  make[1]: *** No rule to make target `/usr/lib/libgmpxx.so', needed by
`cmTryCompileExec'.  Stop.

I have libgmp-dev installed, in /usr/lib/x86_64-linux-gnu/libgmpxx.so,
but no /usr/lib/libgmpxx.so.

-j.

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