gcc and j0,j1,jn, y0, y1, yn

[mgi@vt.edu]

It appears that the bessel functions j0, j1, jn, and y0, y1, yn are
included in the libc as documented in the man page.

However, it appears that gcc needs some option flags for these
functions to be found in the include file bits/mathcall.h

Any suggestions which flag would do the trick?

Matthias