Explicitly add nsl to libswanted on Solaris

7e19816 removed it from the default
list, but it is apparently still necessary on Solaris so we add it back
in the hints file.

Author: Leont

hints/solaris_2.sh

@@ -63,6 +63,10 @@ esac
 set `echo " $libswanted " | sed -e 's@ ld @ @' -e 's@ malloc @ @' -e 's@ ucb @ @' -e 's@ sec @ @' -e 's@ crypt @ @'`
 libswanted="$*"
 
+# Add libnsl for networking support
+set `echo " $libswanted " | sed -e 's@ inet @ inet nsl @'`
+libswanted="$*"
+
 # Look for architecture name.  We want to suggest a useful default.
 case "$archname" in
 '')