[Octave-bug-tracker] [bug #38091] image-2.0.0 install failure on Ubuntu 12.04 - diagnosed, outline fix

[Mike Miller]

Follow-up Comment #1, bug #38091 (project octave):

A few comments:

1. You should use CPPFLAGS (preprocessor flags) instead of CXXFLAGS for things
like include paths. By using CXXFLAGS you probably disabled the default code
optimization (-O2).

2. A possible workaround might be to set CXXFLAGS in your environment to match
how you built Octave:


octave:1> putenv ("CXXFLAGS", "-I/usr/include/openmpi");
octave:2> pkg install ...


3. This exact problem is worked around in Debian and Ubuntu with the following
patch to mkoctfile:

http://anonscm.debian.org/gitweb/?p=pkg-octave/octave.git;a=blob;f=debian/patches/mkoctfile-mpi.diff

All that being said, a similar issue with mkoctfile was recently brought up on
the maintainers list, so someone may already be working on a fix that applies
here.

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