MAKE_JOBS.devel/cmake ineffective

[Paul Ripke <stix%stix.id.au@localhost>]

I've been making use of the per-package MAKE_JOBS for large c++/rust
packages to limit the build parallelism sufficiently to stop thrashing.
Today I got surprised by devel/cmake ignoring my config, and the
attached patch explains why. There seem to be quite a few of these
in the tree, perhaps "someone" can just fix all at once?

diff --git a/devel/cmake/Makefile b/devel/cmake/Makefile
index 732b189a8bc..bcb6d01db0e 100644
--- a/devel/cmake/Makefile
+++ b/devel/cmake/Makefile
@@ -14,7 +14,7 @@ BUILD_TARGET=		default_target
 CONFIGURE_HAS_MANDIR=	no
 CONFIGURE_ARGS+=	--mandir=/${PKGMANDIR}
 CONFIGURE_ARGS+=	--docdir=/share/doc/cmake-${CMAKE_API}
-CONFIGURE_ARGS+=	--parallel=${MAKE_JOBS:U1}
+CONFIGURE_ARGS+=	--parallel=${_MAKE_JOBS_N:U1}
 CONFIGURE_ARGS+=	--prefix=${PREFIX}
 CONFIGURE_ARGS+=	--system-libs
 # jsoncpp requires cmake to build, so use the one provided with cmake

-- 
Paul Ripke
"Great minds discuss ideas, average minds discuss events, small minds
 discuss people."
-- Disputed: Often attributed to Eleanor Roosevelt. 1948.