autotools

I've already read the thread about the autogen.sh: "read what is inside an do it the port way" I'm trying to do so: GNU_CONFIGURE= yes CONFIGURE_ARGS= --enable-sdl2 USE_AUTOTOOLS= aclocal autoheader automake autoconf AUTOMAKE_ARGS= --include-deps --add-missing --copy...

I'm trying to run autoreconf -fi but I'm getting a error that forces the script to exit. configure.ac:54: error: possibly undefined macro: AS_IF If this token and others are legitimate, please use m4_pattern_allow. See the Autoconf documentation. configure.ac:56: error: possibly...