aclocal fails with: configure.ac:18: error: AC_LANG_CONFTEST: unknown language: RC ../../lib/autoconf/lang.m4:214: AC_LANG_CONFTEST is expanded from... ax_misc.m4:73: AX_LANG_CONFTEST is expanded from... ax_prog_rc.m4:56: AC_PROG_RC is expanded from... configure.ac:18: the top level
should be fixed now