PowerPC (at least, the variants used on hardware typically supported by
pkgsrc) does not offer the gamut of hardware-backed atomic instructions
that relatively recent versions of SpiderMonkey demand. Fall back to
using GCC's libatomic, so this builds and runs on that architecture.
Don't inline push with more than 1 argument
A vulnerability where the JavaScript JIT compiler inlines Array.prototype.push with multiple arguments that results in the stack pointer being off by 8 bytes after a bailout. This leaks a memory address to the calling function which can be used as part of an exploit inside the sandboxed content process.
Bump PKGREVISION
This fixes a build failure for netbsd/i386, which defaults for -march=i486,
and thus lacks 8 byte atomics required by this package.
Reported & tested by Riccardo Mottola on current-users.
