Non-zero error installing igraph on Redhat 6.1 with GCC 4.4.7-23

General
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1

I found this already discussed in April but the issue closed w/o resolution.

On RHEL 6.1 we have GCC 4.4.7 installed and checked for GCC Fortran as well. Get the same errors sequence:

In file included from bliss.cc:20:
bliss/graph.hh:326: error: ISO C++ forbids initialization of member 'refine_equal_to_first'
bliss/graph.hh:326: error: making 'refine_equal_to_first' static
bliss/graph.hh:326: error: ISO C++ forbids in-class initialization of non-const static member 'refine_equal_to_first'
make: *** [bliss.o] Error 1
ERROR: compilation failed for package 'igraph'

2

There is not much you can do other than install newer gcc. In no particular order:

  • Since you are on RH, install the devtoolset.
  • Compile it from source code. You will likely need to install newer versions of its dependencies.
  • Install conda. It could be brittle though and make a mess (happened to me more than once).
  • Install Nix. This is infinitely more robust than conda but the learning curve is steep. Nix is my current approach.
3

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