powl

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

pkgsrc's math/R fails to build with

gcc -std=gnu99 -export-dynamic -fopenmp  -L/usr/pkg/lib -L/usr/lib 
-Wl,-R/usr/lib -Wl,-R/usr/pkg/lib -L/usr/X11R7/lib -Wl,-R/usr/X11R7/lib 
-pthread -o R.bin Rmain.o  -L../../lib -Wl,-R/usr/pkg/lib/R/lib -lR 
../../lib/libR.so: undefined reference to `powl'


powl is declared in /usr/include/math.h but where is it defined?

Cheers,

Patrick