Skip building the test programs in parallel/threadingbuildingblocks

[Charlotte Koch <charlotte%netbsd.org@localhost>]

Hi,

The CMake in parallel/threadingbuildingblocks says to build the test 
programs by default. But PKGSRC_RUN_TEST is NOT enabled by default. The 
end result is: in the default configuration, we're building dozens of 
executables which aren't even installed.

So, I think we can speed up the build significantly in the typical use
case by building the test programs iff we want to run the tests in the
first place. What do we think of my diff (attached) ?

I wonder if there are other, similar opportunities to take advantage of
situations like this when PKGSRC_RUN_TEST is disabled. Maybe we could
even automate it somewhat.

Charlotte

Index: Makefile
===================================================================
RCS file: /cvsroot/pkgsrc/parallel/threadingbuildingblocks/Makefile,v
retrieving revision 1.13
diff -b -u -r1.13 Makefile
--- Makefile	1 Jul 2022 16:21:08 -0000	1.13
+++ Makefile	11 Aug 2022 06:52:43 -0000
@@ -2,6 +2,7 @@
 
 DISTNAME=	oneTBB-2021.5.0
 PKGNAME=	${DISTNAME:S/oneTBB-/threadingbuildingblocks-/}
+PKGREVISION=	1
 CATEGORIES=	parallel
 MASTER_SITES=	${MASTER_SITE_GITHUB:=oneapi-src/}
 GITHUB_PROJECT=	oneTBB
@@ -17,7 +18,13 @@
 # Use one build directory across platforms.
 CMAKE_ARGS+=	-DTBB_OUTPUT_DIR_BASE=pkgsrc
 CMAKE_ARGS+=	-DTBB_STRICT=OFF
+
+.if !empty(PKGSRC_RUN_TEST:M[Yy][Ee][Ss])
 TEST_TARGET=	test
+.else
+CMAKE_ARGS+=	-DTBB_TEST=OFF
+.endif
+
 # For Darwin
 TEST_ENV+=	DYLD_LIBRARY_PATH=${WRKSRC}/pkgsrc_relwithdebinfo