large improvement for parallel builds. works without V=99 now and without warnings...

[openwrt-10.03/.git] / include / subdir.mk

diff --git a/include/subdir.mk b/include/subdir.mk
index 40a06ed9e13ab33533bb0af35d86463f99d9ff43..e12799b475f01918e162ffe346f81f1840009d5e 100644 (file)
--- a/include/subdir.mk
+++ b/include/subdir.mk
@@ -17,6 +17,10 @@ define subtarget
 
 endef
 
+
+lastdir=$(word $(words $(subst /, ,$(1))),$(subst /, ,$(1)))
+diralias=$(if $(findstring $(1),$(call lastdir,$(1))),,$(call lastdir,$(1)))
+
 # Parameters: <subdir>
 define subdir
   $(call warn,$(1),d,D $(1))
@@ -24,20 +28,23 @@ define subdir
     $(call warn,$(1),d,BD $(1)/$(bd))
     $(foreach target,$(SUBTARGETS),
       $(call warn_eval,$(1)/$(bd),t,T,$(1)/$(bd)/$(target): $(if $(QUILT),,$($(1)/$(bd)/$(target)) $(call $(1)//$(target),$(1)/$(bd))))
-               +$$(MAKE) -j1 -C $(1)/$(bd) $(target)
+               $(if $(findstring $(bd),$($(1)/builddirs-parallel)),$$(SUBMAKE),$$(_SINGLE)$$(SUBMAKE) -j1) \
+                       -C $(1)/$(bd) $(target) $(if $(findstring $(bd),$($(1)/builddirs-ignore-$(target))), || $(call MESSAGE,   ERROR: $(1)/$(bd) failed to build.))
         $$(if $(call debug,$(1)/$(bd),v),,.SILENT: $(1)/$(bd)/$(target))
 
       # legacy targets
       $(call warn_eval,$(1)/$(bd),l,T,$(1)/$(bd)-$(target): $(1)/$(bd)/$(target))
+      # aliases
+      $(if $(call diralias,$(bd)),$(call warn_eval,$(1)/$(bd),l,T,$(1)/$(call diralias,$(bd))/$(target): $(1)/$(bd)/$(target)))
        )
   )
   $(foreach target,$(SUBTARGETS),$(call subtarget,$(1),$(target)))
 endef
 
-# Parameters: <subdir> <name> <target>
+# Parameters: <subdir> <name> <target> <depends>
 define stampfile
   $(1)/stamp-$(3):=$(STAGING_DIR)/stamp/.$(2)_$(3)
-  $$($(1)/stamp-$(3)): $(TMP_DIR)/.build
+  $$($(1)/stamp-$(3)): $(TMP_DIR)/.build $(4)
        @+$(SCRIPT_DIR)/timestamp.pl -n $$($(1)/stamp-$(3)) $(1) $(4) || \
                $(MAKE) $$($(1)/flags-$(3)) $(1)/$(3)
        @mkdir -p $$$$(dirname $$($(1)/stamp-$(3)))