add a variable LIBRPC to refer to the external librpc if used

[openwrt.git] / include / subdir.mk

diff --git a/include/subdir.mk b/include/subdir.mk
index afc95a4..a8a87b5 100644 (file)
--- a/include/subdir.mk
+++ b/include/subdir.mk
@@ -5,7 +5,7 @@
 # See /LICENSE for more information.
 #
 
-SUBTARGETS:=clean download prepare compile install update refresh prereq dist distcheck
+SUBTARGETS:=clean download prepare compile install update refresh prereq dist distcheck configure
 
 subtarget-default = $(filter-out ., \
        $(if $($(1)/builddirs-$(2)),$($(1)/builddirs-$(2)), \
@@ -35,7 +35,7 @@ define subdir
       )
       $(call warn_eval,$(1)/$(bd),t,T,$(1)/$(bd)/$(target): $(if $(QUILT),,$($(1)/$(bd)/$(target)) $(call $(1)//$(target),$(1)/$(bd))))
                $(if $(BUILD_LOG),@mkdir -p $(BUILD_LOG_DIR)/$(1)/$(bd))
-        $(foreach variant,$(if $(BUILD_VARIANT),$(BUILD_VARIANT),$(if $($(1)/$(bd)/variants),$($(1)/$(bd)/variants),__default)),
+        $(foreach variant,$(if $(BUILD_VARIANT),$(BUILD_VARIANT),$(if $(strip $($(1)/$(bd)/variants)),$($(1)/$(bd)/variants),$(if $($(1)/$(bd)/default-variant),$($(1)/$(bd)/default-variant),__default))),
                        +$(if $(BUILD_LOG),set -o pipefail;) $$(SUBMAKE) -C $(1)/$(bd) $(target) BUILD_VARIANT="$(filter-out __default,$(variant))" $(if $(BUILD_LOG),SILENT= 2>&1 | tee $(BUILD_LOG_DIR)/$(1)/$(bd)/$(target).txt) $(if $(findstring $(bd),$($(1)/builddirs-ignore-$(target))), || $(call MESSAGE,   ERROR: $(1)/$(bd) failed to build$(if $(filter-out __default,$(variant)), (build variant: $(variant))).))
         )
         $$(if $(call debug,$(1)/$(bd),v),,.SILENT: $(1)/$(bd)/$(target))