Problems building mesagl on FreeBSD4.8-RELEASE

[Sean Welch]

I would file a PR, but as none of my FreeBSD systems
are set up to mail directly I can't use send-pr (using
webmail currently), and the web interface at freebsd.org
is still not available.

I had to apply the following patch (to a patch) in
order to get it to compile:

--- patch-aa.orig       Sat May 10 15:33:00 2003
+++ patch-aa    Mon May 12 14:59:31 2003
@@ -32,6 +32,6 @@
  echo "${ECHO_T}yes" >&6
 -    CFLAGS="$CFLAGS -D_REENTRANT -DPTHREADS"
 +    CFLAGS="$CFLAGS -D_THREAD_SAFE -D_REENTRANT -DPTHREADS"
-     THREAD_LIBS="$THREAD_LIBS -lc_r"
+     THREAD_LIBS="$THREAD_LIBS -pthread"
  else
    echo "$as_me: failed program was:" >&5