[MacPorts] #46392: gfortran-mp-4.[89] internal compiler error when building scipy-0.14.1 on a PPC

[MacPorts]

#46392: gfortran-mp-4.[89] internal compiler error when building scipy-0.14.1 on a
PPC
----------------------------------+--------------------------------
 Reporter:  drjesacco@…           |      Owner:  macports-tickets@…
     Type:  defect                |     Status:  new
 Priority:  Normal                |  Milestone:
Component:  ports                 |    Version:  2.3.3
 Keywords:  PPC, scipy, gfortran  |       Port:  gcc48, gcc49
----------------------------------+--------------------------------
 System: dual G4 powerMac running OS X 10.5.8

 gfortran-mp-4.[89] fails to compile scipy/fftpack/src/fftpack/cfftb1.f
 when optimization is set to '-O3'. Reducing the optimization level to
 '-O2' allows the compilation to succeed.  The attached file contains the
 relevant portion of the build log and a copy of cfftb1.f.

 py(27|34)-scipy-0.14.0 built without incident with an earlier version of
 gcc-mp-4.8.

 A quick workaround to get scipy to build is to modify the numpy file that
 sets the optimization level for the fortran compiler.

 --- site-packages/numpy/distutils/fcompiler/gnu.py-     2015-01-04
 12:14:16.000000000 -0500
 +++ site-packages/numpy/distutils/fcompiler/gnu.py      2015-01-04
 12:14:29.000000000 -0500
 @@ -200,7 +200,7 @@
              # with -O3 caused failures in lib.lapack heevr,syevr tests.
              opt = ['-O2']
          else:
 -            opt = ['-O3']
 +            opt = ['-O2']
          opt.append('-funroll-loops')
          return opt

-- 
Ticket URL: <https://trac.macports.org/ticket/46392>
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