py27-numpy: ld: library not found for -lgfortran

[rrykim@…]

I'm using 2011 Macbook Pro (i5 2.3GHz) Xcode 3.2.6 installed.

py27-numpy failed to build with a message

Building py27-numpy
Error: Target org.macports.build returned: shell command failed (see log for details)
Log for py27-numpy is at: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_ports_python_py27-numpy/main.log

Please see the attached file.

[ryandesign (Ryan Carsten Schmidt)]

Has duplicate #29781.

[ryandesign (Ryan Carsten Schmidt)]

The relevant error seems to be:

ld: library not found for -lgfortran

libgfortran.dylib is supposed to be provided by the gcc port applicable to the gcc variant you selected. For example if you selected (or MacPorts automatically selected) the gcc44 variant, then it should be using the libgfortran.dylib in /opt/local/lib/gcc44.

What's peculiar about your log is that it shows it found and used /usr/bin/gfortran as the fortran compiler. Where did /usr/bin/gfortran come from? It is not a part of Mac OS X or Xcode and no MacPorts port provides it. You should remove it, and anything else that went along with it. Then clean py27-numpy and try again.

[ryandesign (Ryan Carsten Schmidt)]

Looks like a duplicate of #28966, also mentioned in #26719.

[rrykim@…]

Removed gfortran as ryandesign suggested and it works. I am still curious about where the gfortran came from?

[skymoo (Adam Mercer)]

I've seen multiple instances of /usr/bin/gfortran causing problems and have no idea where it comes from. It would be useful to find where this is coming from...