X-Git-Url: http://git.rohieb.name/openwrt.git/blobdiff_plain/60004bec44cf9fc351d4fcee9063e8f64e2d03e2..e1fe0dfb0cd882eafabcca3fc72675fb8ae744d5:/rules.mk

diff --git a/rules.mk b/rules.mk
index 49044c8cf..d3521649a 100644
--- a/rules.mk
+++ b/rules.mk
@@ -47,6 +47,8 @@ else
   FPIC:=-fpic
 endif
 
+HOST_FPIC:=-fPIC
+
 ARCH_SUFFIX:=
 ifneq ($(findstring -mips32r2,$(TARGET_OPTIMIZATION)),)
   ARCH_SUFFIX:=_r2
@@ -247,6 +249,16 @@ define include_mk
 $(eval -include $(if $(DUMP),,$(STAGING_DIR)/mk/$(strip $(1))))
 endef
 
+# Execute commands under flock
+# $(1) => The shell expression.
+# $(2) => The lock name. If not given, the global lock will be used.
+define locked
+	SHELL= \
+	$(STAGING_DIR_HOST)/bin/flock \
+		$(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock \
+		-c '$(subst ','\'',$(1))'
+endef
+
 # file extension
 ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
 
@@ -254,4 +266,16 @@ all:
 FORCE: ;
 .PHONY: FORCE
 
+val.%:
+	@$(if $(filter undefined,$(origin $*)),\
+		echo "$* undefined" >&2, \
+		echo '$(subst ','"'"',$($*))' \
+	)
+
+var.%:
+	@$(if $(filter undefined,$(origin $*)),\
+		echo "$* undefined" >&2, \
+		echo "$*='"'$(subst ','"'\"'\"'"',$($*))'"'" \
+	)
+
 endif #__rules_inc