It is indeed an FC7 box :
[EMAIL PROTECTED] sage-2.9.1.1]$ uname -a
Linux localhost.localdomain 2.6.23.8-34.fc7 #1 SMP Thu Nov 22 23:05:33
EST 2007 i686 i686 i386 GNU/Linux

On Jan 2, 9:16 pm, Joshua Kantor <[EMAIL PROTECTED]> wrote:
> Hmm. That is very weird that it saw your system as posix and not
> linux.
> Out of curiosity what does uname -a output on your system.
>
> On Jan 2, 5:34 pm, Johannct <[EMAIL PROTECTED]> wrote:
>
> > hi,
> > I downloaded sage-2-9-1-1 and I am running on the following system :
> >    UNAME    : Linux localhost.localdomain 2.6.23.1-21.fc7 #1 SMP Thu
> > Nov 1 21:09:24 EDT 2007 i686 i686 i386 GNU/Linux
> >    INSTFLG  : -1 0 -a 1
> >    ARCHDEFS : -DATL_OS_Linux -DATL_ARCH_CoreDuo -DATL_CPUMHZ=2000 -
> > DATL_SSE3 -DATL_SSE2 -DATL_SSE1 -DATL_GAS_x8632
> >    F2CDEFS  : -DAdd_ -DF77_INTEGER=int -DStringSunStyle
> >    CACHEEDGE: 1048576
> >    F77      : gfortran, version GNU Fortran (GCC) 4.1.2 20070925 (Red
> > Hat 4.1.2-27)
> >    F77FLAGS : -O -fPIC -m32
> >    SMC      : gcc, version gcc (GCC) 4.1.2 20070925 (Red Hat 4.1.2-27)
> >    SMCFLAGS : -fomit-frame-pointer -O3 -mfpmath=387 -fPIC -m32
> >    SKC      : gcc, version gcc (GCC) 4.1.2 20070925 (Red Hat 4.1.2-27)
> >    SKCFLAGS : -fomit-frame-pointer -O3 -mfpmath=387 -fPIC -m32
>
> > make fails with the following message :
>
> > building extension "numpy.core.multiarray" sources
> > Generating build/src.linux-i686-2.5/numpy/core/config.h
> > error: don't know how to compile Fortran code on platform 'posix' with
> > 'gfortran' compiler. Supported compilers are:
> > intelem,absoft,compaq,ibm,sun,lahey,sage_fortran,pg,hpux,intele,gnu95,intelv,g95,compaqv,mips,vast,nag,none,intel,f,gnu,intelev)
> > Error building numpy.
> > Try setting SAGE_ATLAS to the directory that contains lib/libatlas.a ?
>
> > This last comment about SAGE_ATLAS does nothing different, and I do
> > not see why it would be related to an error about gfortran not been
> > accpeted. I did sage -sh and went to the numpy distro inside sage,
> > issued a python setup.py config command and got :
> > customize Sage_FCompiler
> > Couldn't match compiler version for 'GNU Fortran (GCC) 4.1.2 20070925
> > (Red Hat 4.1.2-27)\nCopyright (C) 2007 Free Software Foundation, Inc.\n
> > \nGNU Fortran comes with NO WARRANTY, to the extent permitted by law.
> > \nYou may redistribute copies of GNU Fortran\nunder the terms of the
> > GNU General Public License.\nFor more information about these matters,
> > see the file named COPYING\n'
> > customize G95FCompiler
> > 'linker_exe'
> > customize GnuFCompiler
> > Couldn't match compiler version for 'GNU Fortran (GCC) 4.1.2 20070925
> > (Red Hat 4.1.2-27)\nCopyright (C) 2007 Free Software Foundation, Inc.\n
> > \nGNU Fortran comes with NO WARRANTY, to the extent permitted by law.
> > \nYou may redistribute copies of GNU Fortran\nunder the terms of the
> > GNU General Public License.\nFor more information about these matters,
> > see the file named COPYING\n'
> > customize Gnu95FCompiler
> > customize Gnu95FCompiler
> > customize Gnu95FCompiler using config
> > compiling '_configtest.c':
>
> > and then same failure with command build. The weird thing is that I
> > build numpy SVN version fine on my system. Also the last 2.8 version
> > of sage did not seem to cause this trouble
> > Thanks for your help,
> > Johann
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