there is a problem when compiling ffmpeg on solaris.
solaris up to (incl) 9 does NOT have:
roundf()
i work around that issue by using:
echo "#define roundf(a) ((fmod(a,1)<0.5)?floor(a):ceil(a))" >> config.h
after i've run configure.
could you include a test in configure for roundf()?
niki