On 14.2.2015 09:20, Marco Atzeri wrote: > I am trying to upgrade proftpd and also build the 64bit version. > However when building the 64bit one, I catch: > > /pub/devel/proftpd/proftpd-1.3.5-1.x86_64/build/lib/pr_fnmatch_loop.c:1142: > undefined reference to `__mempcpy' > > I see this difference in exported symbols for the the two archs > > 32bit > $ nm /usr/lib/libcygwin.a |grep " T " |sort | grep mempcpy > 00000000 T ___mempcpy > 00000000 T _mempcpy > > 64bit > $ nm /usr/lib/libcygwin.a |grep " T " |sort | grep mempcpy > 0000000000000000 T mempcpy > > > any idea ?
`__memcpy()` is their invention:
~~~~
#ifndef HAVE_MEMPCPY
/* Copy N bytes of SRC to DEST, return pointer to bytes after the
last written byte. */
static void *
__mempcpy (void *dest, const void *src, size_t n)
{
return (char *) memcpy (dest, src, n) + n;
}
#endif
~~~~
Since Cygwin has memcpy(), it should be defined. I guess you need to
find out why its tests are failing and `HAVE_MEMCPY` is not defined.
-- VZ
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