Currently, ncurses's include files are installed into two separate subdirectories, "install/ncurses" and "install/ncursesw". The second level of subdirectories ("ncurses" and "ncursesw") are non-standard. I checked several systems to confirm this, and ncurses examples on the web also simply contain "#include <ncurses.h>" instead of "#include <ncurses/ncurses.h>", which would be necessary to use the currently installed ncurses packages. For example, this also breaks llvm, which uses ncurses, but does not expect the second level of subdirectories.
I am now using the option "--enable-overwrite", which installs the header files directly in to ".../include". I also enable "widec" support all the time. These options are e.g. similar to the ones used by MacPorts, and I confirm that they make the llvm package build (which didn't build before).
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