Add Solaris support. Avoid kshisms.

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@2222 d4fa192b-c00b-0410-8231-f00ffab90ce4

autogen.sh

@@ -17,12 +17,15 @@ FreeBSD)
 Linux)
     LIBTOOLIZE=libtoolize
     ;;
+SunOS)
+    LIBTOOLIZE=libtoolize
+    ;;
 *)
     warn "unrecognized platform:" `uname -s`
     LIBTOOLIZE=libtoolize
 esac
 
-automake_version=$(automake --version | tr ' ' '\n' | egrep '^[0-9]\.[0-9a-z.-]+')
+automake_version=`automake --version | tr ' ' '\n' | egrep '^[0-9]\.[0-9a-z.-]+'`
 if [ -z "$automake_version" ] ; then
     warn "unable to determine automake version"
 else