autoconf 2.13 question

[Grosch, Scott]

Where do I send questions about autoconf?  Is there a mailing list or
newsgroup somewhere?  I have two questions:

1) How do I add -I, -L and -R flags to the compile and link lines
   when searching for libs?  For example, I have AFS installed but
   those libraries are in /usr/afsws/lib....not a normal search path
2) How do I check for OS type?  I want to say:  If on solaris, add
   the following LIBS and CFLAGS