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.
Pkgsrc changes:
o Add a patch so that our PowerPC-based ports are properly detected
by the dtoa configuration logic, by also recognizing __powerpc__
to indicate big-endian float format.
This should fix PR#40624.
ECMAScript is a standardized language also known variously as JavaScript,
JScript, and LiveScript. SEE is a library that provides a parser and runtime
environment for this language. It conforms to ECMAScript Edition 3, and to
JavaScript 1.5, with some compatibility switches for earlier versions of
JavaScript and Microsoft's JScript.
