From 579e9620c659883a1af1b94014587cc0086b3d92 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Wed, 20 Jan 2016 21:31:38 +0000
Subject: [PATCH] rules.mk: make the locked template available even if flock
 has not been built yet (fall back to unlocked shell command)

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48414
---
 rules.mk | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/rules.mk b/rules.mk
index f0c813620a..11ed80950a 100644
--- a/rules.mk
+++ b/rules.mk
@@ -333,12 +333,16 @@ endef
 # Execute commands under flock
 # $(1) => The shell expression.
 # $(2) => The lock name. If not given, the global lock will be used.
-define locked
+ifneq ($(wildcard $(STAGING_DIR_HOST)/bin/flock),)
+  define locked
 	SHELL= \
-	$(STAGING_DIR_HOST)/bin/flock \
+	flock \
 		$(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock \
 		-c '$(subst ','\'',$(1))'
-endef
+  endef
+else
+  locked=$(1)
+endif
 
 # Recursively copy paths into another directory, purge dangling
 # symlinks before.