On 11/23/11 10:07, Ralf Schmitt wrote:
Oscar Benjamin<[email protected]> writes:
Would it be slightly better to test just for the existence of the LIBM
configuration variable rather than its value? I don't know of an
example, but I guess a system could have libm but use a compiler with a
different linker argument format.
e.g.
if 'libm' in sysconfig.get_config_vars()
No, the following is from OS X:
,----
|>>> from distutils import sysconfig
|>>> sysconfig.get_config_var("LIBM")
| ''
`----
It may not matter. On my Mac (Snow Leopard), it wants to use built-in
functions provided by gcc for everything that I've tried that is in -lm on
other machines. There is a /usr/lib/libm.dylib, but a little searching (/bin,
/usr/bin, my own custom python install) did not find anything on my machine
that actually uses it.
"cc c.c" and "cc c.c -lm" produce identical a.out files.
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