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I figured out how to get the redirect to work. The attached txt file contains the error messages.
/usr/local/apache-2.0.45/build/libtool --silent --mode=link gcc -o mod_auth_pam.so -lpam -rpath /usr/local/apache-2.0.45/modules -module -avoid-version mod_auth_pam.lo
On my system, 'head /usr/lib/httpd/build/libtool' indicates that the script was "Generated automatically by (GNU libtool 1.4.3)". What version of libtool appears to have generated yours?