From acc2cc1958eac5d09263a090dffe8a3dca007da6 Mon Sep 17 00:00:00 2001 From: brooks Date: Tue, 6 May 2014 14:38:03 +0000 Subject: MFC r265097: Merge from CheriBSD: commit 1d1b908107255ffdff4d17f015d8f057d73cc6cb Author: Brooks Davis Date: Fri Mar 28 16:24:45 2014 +0000 Add a long needed seatbelt. Exit with an error when make is called without a target at the top level rather than poluting the source tree and causing use confusion in future builds. commit a9d9aa341b2f4308a227ab460ba85f1f287ad028 Author: Brooks Davis Date: Tue Apr 29 16:06:12 2014 +0000 Simplify seatbelt added in 1d1b908 based in feedback. Discussed with: imp@FreeBSD.org Reviewed by: imp Sponsored by: DARPA, AFRL --- Makefile | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) (limited to 'Makefile') diff --git a/Makefile b/Makefile index ab8f6b1..98b33d3 100644 --- a/Makefile +++ b/Makefile @@ -252,8 +252,17 @@ tinderbox toolchains kernel-toolchains: .MAKE ${TGTS}: ${_+_}@cd ${.CURDIR}; ${_MAKE} ${.TARGET} -# Set a reasonable default -.MAIN: all +# The historic default "all" target creates files which may cause stale +# or (in the cross build case) unlinkable results. Fail with an error +# when no target is given. The users can explicitly specify "all" +# if they want the historic behavior. +.MAIN: _guard + +_guard: + @echo + @echo "Explicit target required (use \"all\" for historic behavior)" + @echo + @false STARTTIME!= LC_ALL=C date CHECK_TIME!= find ${.CURDIR}/sys/sys/param.h -mtime -0s ; echo -- cgit v1.1