Performance Release causes link failure with undefined ref to `__sincos'

Question

I noticed while building a shared library with performance release for the C compiler that linking to the library has problems due to an undefined reference to __sincos. This is a mixed fortran and c library. The fortran is fine being compiled with performance release. Everything works with the library compiled with Release for the C portion and Performance Release for the Fortran portion.
Is there anything I can do to find out if this is my problem or a problem with the compiler?

Answer 1

I discussed this problem with an engineer from the C
compiler team. He pointed out that the likely cause of
the problem is that the option -xlibmopt is being
specified on the command line for compilation, but not
on the command line for linking. If the option -xlibmopt
is used for any of the compilations, it must also be used
for linking.
The option -xlibmopt causes the library libmopt to be added
to the link line. The library libmopt includes the entry point
__sincos. The reason the program links successfully on
Solaris is that the Solaris libraries include another version
of the routine __sincos in another library. That version of
__sincos is not as efficient as the version in libmopt.
Bob Corbett