This changes the buildlink3.mk files to use an include guard for the
recursive include. The use of BUILDLINK_DEPTH, BUILDLINK_DEPENDS,
BUILDLINK_PACKAGES and BUILDLINK_ORDER is handled by a single new
variable BUILDLINK_TREE. Each buildlink3.mk file adds a pair of
enter/exit marker, which can be used to reconstruct the tree and
to determine first level includes. Avoiding := for large variables
(BUILDLINK_ORDER) speeds up parse time as += has linear complexity.
The include guard reduces system time by avoiding reading files over and
over again. For complex packages this reduces both %user and %sys time to
half of the former time.
by neimal, with work by netcap, hoka_adam, bsadewitz and me.
libmtp is an implementation of Microsoft's Media Transfer Protocol
(MTP) in the form of a library suitable primarily for POSIX compliant
operating systems. We implement MTP Basic, the stuff proposed for
standardization.
It is used by:
* XNJB
* Gnomad2
* MTPdude
* AmaroK
