# objdump -p /usr/lib/libfftw.so | grep -A20 Version
Version References:
[...]
required from libm.so.6:
0x0d696910 0x00 02 GLIBC_2.0
Is there a reason why under 32bit FC5 and 64bit FC3 the library
references libm, while it doesn't under 64bit FC5? It doesn't look like
the most predictable behaviour to me. Which of the two is considered
more proper?
it's entirely possible that gcc on 64 bit has all the math operations
inlined, while on 32 bit a few are external (eg libm)..