Since the author switched to use autoconf to maintain it, the entire
build system changed quite a bit. In order to get it to use the
correct tools (avr-gcc etc.) instead of the default C compiler, the
package now contains wrapper scripts to configure and build it, so a
good part of our ports framework doesn't apply anymore very well. As
a side-effect, i can't get it to honor ${PREFIX} in any way right now.
Maybe i'll switch away from the shipped scripts, and redo all their
stuff within that Makefile in future.
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