howto use /usr/include/iconv.h

[Johannes Hofmann <Johannes.Hofmann@xxxxxx>]

Hello,

what is the correct way to use iconv.h from /usr/include instead of 
/usr/pkg/include ?
As soon as I add -I/usr/pkg/include iconv.h is used from there.
Even adding -I/usr/include doesn't help.
On the other hand I need -I/usr/pkg/include e.g. for jpeglib.h.

 Johannes