When compiling programs in Solaris you may find you recieve the following error (or something along the same lines) complaining about grep.

checking for grep that handles long lines and -e... ./configure: line 3859: 13085 Killed                 
"$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' <"conftest.nl" >"conftest.out" 2>/dev/null
./configure: line 3859: 13092 Killed                  "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' <"conftest.nl" >"conftest.out" 2>/dev/null
configure: error: no acceptable grep could be found in /usr/sbin:/usr/bin:/usr/local/bin:/usr/local/bin:/usr/xpg4/bin

The easiest way I found to get around this issue is to link grep to egrep. You can do think by using the following commands :

find / -name grep -exec rm {} \;
for i in `find / -name egrep` ; do echo ln -s $i `echo $i | sed 's/egrep/grep/g'` ; done

These commands will create a soft link (grep) to your egrep binary.