For some reason all the necessary CFALGS are not returned by simply
querying the CFLAGS from apxs. We also need to query EXTRA_CPPFLAGS
apparently.
AC_SUBST([GSSAPI_CFLAGS])
AC_SUBST([GSSAPI_LIBS])
-MAG_CFLAGS="`${APXS} -q CFLAGS` `${APR} --cflags` ${GSSAPI_CFLAGS} ${OPENSSL_CFLAGS} -I`${APXS} -q INCLUDEDIR` `${APR} --includes`"
+MAG_CFLAGS="`${APXS} -q CFLAGS` `${APXS} -q EXTRA_CPPFLAGS` `${APR} --cflags` ${GSSAPI_CFLAGS} ${OPENSSL_CFLAGS} -I`${APXS} -q INCLUDEDIR` `${APR} --includes`"
MAG_LIBS="`${APR} --libs` ${GSSAPI_LIBS} ${OPENSSL_LIBS}"
LIBTOOL="`${APXS} -q LIBTOOL`"
MAG_LIBDIR="`${APXS} -q libexecdir`"