From 954f4e2ab3d28b1bc6021bce7cf5c919f54d5e18 Mon Sep 17 00:00:00 2001
From: Rob Landley <rob@landley.net>
Date: Fri, 1 May 2020 10:14:12 -0500
Subject: Fix and document make run_root.

---
 Makefile         | 3 +--
 scripts/help.txt | 3 ++-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 316df2f8..3ee66ea6 100644
--- a/Makefile
+++ b/Makefile
@@ -80,8 +80,7 @@ root:
 	scripts/mkroot.sh $(MAKEFLAGS)
 
 run_root:
-	C=$$(basename "$$CROSS_COMPILE" | sed 's/-.*//'); \
-        cd root/"$${C:-host}" && ./qemu-*.sh $(MAKEFLAGS) || exit 1
+	cd root/"$${CROSS:-host}" && ./qemu-*.sh
 
 help::
 	@cat scripts/help.txt
diff --git a/scripts/help.txt b/scripts/help.txt
index 4d07370e..5bf0d613 100644
--- a/scripts/help.txt
+++ b/scripts/help.txt
@@ -20,7 +20,8 @@
   root            - Build/package root filesystem under root/ controlled by
                     CROSS= cross compile (see scripts/mcm-buildall.sh)
                     LINUX= build kernel from this source, configured for qemu
+  run_root        - boot toyroot under qemu, I.E. cd root/$CROSS && ./qemu-*.sh
 
 example: make defconfig toybox install CFLAGS="--static" CROSS_COMPILE=armv5l-
-or     : make root CROSS=sh4 LINUX=~/linux && (cd root/sh4; ./qemu-*.sh)
+or     : make root run_root CROSS=sh4 LINUX=~/linux
 
-- 
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