gc: add full include directory
gc: add full include directory

Required e.g. for building asymptote.

Closes #390.

Signed-off-by: Enno Boland <00f63b104cc192f7f01eceab27b343d9965c9f26@voidlinux.eu>

necrophcodr/void-packages,necrophcodr/void-packages,necrophcodr/void-packages,necrophcodr/void-packages,necrophcodr/void-packages