LIBTOOL = /bin/sh /usr/local/apache20/build/libtool --silent SH_LIBTOOL = /bin/sh /usr/local/apache20/build/libtool --silent
I don't know where it came up with that nonsense... APR & APR-UTIL are installed in /usr/local/apr, httpd in /usr/local/apache20. It seems like config_vars.mk is imagining something, we use apr's libtool.