Author: markj
Date: Fri May 24 15:45:43 2019
New Revision: 348241
URL: https://svnweb.freebsd.org/changeset/base/348241

Log:
  Modernize the MAKE_JUST_KERNELS hint in the top-level makefile.
  
  It doesn't make sense to limit to -j12 anymore, build scalability
  is better than it used to be.  Fold the hint into the description
  of the universe target.
  
  Reviewed by:  imp
  MFC after:    1 week
  Differential Revision:        https://reviews.freebsd.org/D20342

Modified:
  head/Makefile

Modified: head/Makefile
==============================================================================
--- head/Makefile       Fri May 24 15:37:54 2019        (r348240)
+++ head/Makefile       Fri May 24 15:45:43 2019        (r348241)
@@ -4,7 +4,8 @@
 # The user-driven targets are:
 #
 # universe            - *Really* build *everything* (buildworld and
-#                       all kernels on all architectures).
+#                       all kernels on all architectures).  Define the
+#                       MAKE_JUST_KERNELS variable to only build kernels.
 # tinderbox           - Same as universe, but presents a list of failed build
 #                       targets and exits with an error if there were any.
 # buildworld          - Rebuild *everything*, including glue to help do
@@ -45,12 +46,6 @@
 # native-xtools-install
 #                     - Install the files to the given DESTDIR/NXTP where
 #                       NXTP defaults to /nxb-bin.
-# 
-# "quick" way to test all kernel builds:
-#      _jflag=`sysctl -n hw.ncpu`
-#      _jflag=$(($_jflag * 2))
-#      [ $_jflag -gt 12 ] && _jflag=12
-#      make universe -DMAKE_JUST_KERNELS JFLAG=-j${_jflag}
 #
 # This makefile is simple by design. The FreeBSD make automatically reads
 # the /usr/share/mk/sys.mk unless the -m argument is specified on the
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