lets not hozed libtool for Darwin

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4689 d0543943-73ff-0310-b7d9-9358b9ac24b2

build/fixlibtool.sh

@@ -4,7 +4,11 @@ cd fix_libtool
 wget http://mirrors.kernel.org/gnu/libtool/libtool-1.5.22.tar.gz
 tar -zxvf libtool-1.5.22.tar.gz
 cd libtool-1.5.22
+if test "`uname -s`" = "Darwin"; then
+./configure --prefix=/usr --program-prefix=g
+else
 ./configure --prefix=/usr
+fi
 make
 make install
 cd /tmp