Skip Montanaro <[EMAIL PROTECTED]> added the comment:
Mark> 1. What happens if you build with the '-ffloat-store' option to
Mark> gcc?
Doesn't quite work:
% ./python
Python 3.0 (r30:67503, Dec 5 2008, 09:48:42)
[GCC 4.2.2] on sunos5
Type "help", "copyright", "credits" or "license" for more information.
>>> import cmath
>>> cmath.exp(complex(710.0, 1.5))
Segmentation Fault (core dumped)
:-/
Mark> 2. It looks as though the configure script isn't finding 'isinf'
Mark> on Solaris 10. Any ideas why? Is there some replacement for
Mark> isinf that's spelt differently? I suspect that if we were
Mark> using the system lib's test for infinity instead of the
Mark> Py_IS_INFINITY workaround then this problem wouldn't have come
Mark> up.
Thanks for the tip. The configure script doesn't #include <math.h> so
isinf() is not mapped to __builtin_isinf(). Consequently the conftest link
fails:
configure:21401: checking for isinf
configure:21457: gcc -o conftest -g -O2 conftest.c -lresolv -lsocket -lnsl
-lrt -ldl -lm >&5
conftest.c:252: warning: conflicting types for built-in function 'isinf'
Undefined first referenced
symbol in file
isinf /var/tmp//ccmTAet6.o
ld: fatal: Symbol referencing errors. No output written to conftest
collect2: ld returned 1 exit status
I found this code in /usr/include/iso/math_c99.h, included by <math.h>:
#undef isinf
#define isinf(x) __builtin_isinf(x)
Skip
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<http://bugs.python.org/issue4506>
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