[rtg] build issues on FreeBSD 6.x

[Jens Nykær]

Been a while since I worked with RTG, and a lot of changes have happen 
since last time I checked out the CVS version.
So of course I ran into problems straight away. :-)

# uname 
-a                                                                                                                      

FreeBSD jny.iux.netdesign.dk 6.0-RELEASE-p5 FreeBSD 6.0-RELEASE-p5 #1: 
Wed Mar  8 10:40:09 CET 2006     root@:/usr/obj/usr/src/sys/JNY_KERNEL  i386

Running make gives this output.

#make
Making all in cgilib-0.4
Making all in src
make  all-am
/bin/bash ../libtool --mode=link gcc  -g -O2   -L/usr/local/ssl/lib 
-L/usr/local/lib -L/usr/local/lib/mysql -L/usr/local/lib 
-L/usr/local/lib -L/usr/local/lib -o rtgpoll -rpath '/usr/local/rtg/lib' 
rtgsnmp.o rtgdbi.o  rtgpoll.o rtgutil.o rtgtarg.o  rtggram.o rtghash.o 
-lfl -lnetsnmp -lcrypto -lmysqlclient_r -lgd -lpng -lltdl -lz -lpthread 
-lm  -pthread
libtool: link: cannot find the library `' (libcrypt.la: -pthread)
*** Error code 1

Stop in /root/CVS_RTG/rtg/src.
*** Error code 1

Stop in /root/CVS_RTG/rtg/src.
*** Error code 1

Stop in /root/CVS_RTG/rtg.

This is straight from CVS, except a small change in libtool to get more 
verbosity.