On Wed, Jul 14, 2010 at 1:21 PM, Dr. David Kirkby
<david.kir...@onetel.net> wrote:
> Peter Jeremy asked me if I'd look at the cephes package, as he was having
> trouble with it. It's only installed on CYGWIN, so 99% of people are not
> going to see that cephes is broken.
>
> I hacked the package so that it would try to build on any operating system -
> not just Cygwin.
>
> Anyway, it has a few serious problems.
Do you have any better suggestions for c99 support on Cygwin?
- Robert
> 1) It is missing a file, so 'make' exits with an error
>
> gcc -I. -g -O2 -Wall -c -o mtstf.o mtstf.c
> gcc -o mtstf mtstf.o cmplxf.o clogf.o cgammaf.o stubs.o -lm
> gcc -I. -g -O2 -Wall -c -o whitebxf.o whitebxf.c
> gcc -I. -g -O2 -Wall -o whitebxf whitebxf.o libmc.a stubs.o -lm
> make: *** No rule to make target `whitebx.c', needed by `whitebx.o'. Stop.
>
> real 0m9.743s
> user 0m7.635s
> sys 0m1.679s
> Successfully installed cephes-2.8.p1
>
> That file 'whitebx.c' does not exist in the source code at all, and it does
> not look like it is supposed to be generated.
>
> 2) As you can see above, it reports its successfully installed, even though
> 'make' failed. If we look at the spkg-install, we can see that it has near
> the bottom
> ########################################
> function build {
> make_complex_h
> make_single
> make_double
> make_ldouble
> make_c9x_complex
> }
>
> patch
> build
> #########################################
>
> In other words, no error checking is performed, so it is not obvious that it
> failed to install on Cygwin.
>
> http://trac.sagemath.org/sage_trac/ticket/8780
>
> is marked as closed and fixed in sage-4.4.3.alpha0, but I can't possibly see
> how cephes can build on Cygwin. In the event it does build on Cygwin (which
> I doubt), there is no error checking, which is asking for trouble.
>
> I did find this file with a google search
>
> http://code.google.com/p/pbsa/source/browse/trunk/src/c9x-complex/whitebxf.c?spec=svn30&r=30
>
> so it may be possible to implement some sort of repair of this package, but
> I'd be very suspicious of how it is now.
>
> Dave
>
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