Hi,

Does anybody reading this message use gfan in Sage?   Maybe gfan
shouldn't be included in Sage.   I would be OK with removing it if
there isn't any support for it.  That it never gets updated is
suggestive.

William

On Mon, Jan 4, 2010 at 7:47 PM, Dr. David Kirkby
<david.kir...@onetel.net> wrote:
> I note that gfan hard-codes the compiler names gcc/g++. Trying to fix that, I
> soon discovered the Sun compiler thinks there is an error in the code, with
> something supposed to return a value, but not doing so.
>
> gfan-0.3.p6/patches/
> gfan-0.3.p6/patches/Makefile
> Finished extraction
> ****************************************************
> Host system
> uname -a:
> SunOS hawk 5.11 snv_111b i86pc i386 i86pc
> ****************************************************
> ****************************************************
> CC Version
> /opt/sunstudio12.1/bin/cc -v
> usage: cc [ options] files.  Use 'cc -flags' for details
> ****************************************************
> Copying a more portable Makefile, which has less GNUisms.
> /opt/sunstudio12.1/bin/CC -m64 -library=stlport4
> -I/export/home/drkirkby/cc/sage-4.3.1.alpha0/local/include -O2 -DGMPRATIONAL
> -m64 -c lp_cdd.cpp
> "field.h", line 108: Error: "FieldElementImplementation::operator=(const
> Field&)" is expected to return a value.
> "printer.h", line 24: Warning: f hides Printer::f.
> 1 Error(s) and 1 Warning(s) detected.
> make: *** [lp_cdd.o] Error 1
> Error building gfan
>
> I'm not a C++ programmer, so don't know if this is right or not.
>
> However, I did not from
>
> http://www.math.tu-berlin.de/~jensen/software/gfan/gfan.html
>
> that the version in Sage was released in 2007 and that there was a new release
> less than 3 months ago.
>
> It would be good if this could be updated, so that is respects the values of 
> CC,
> CXX, CFLAGS and CXXFLAGS.
>
>
> Then it would have some hope of building with Sun's compiler. If not, any
> problems can be reported upstream. But I'm not overkeen to report bugs about a
> version more than 2 years old.
>
> Dave
>
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-- 
William Stein
Associate Professor of Mathematics
University of Washington
http://wstein.org

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