include/subdir: on build failure always print error

It is impossible to locate package that failed the build just from log
once more build is run in parallel (that is more than one make job). The
only way is to scout log files for failed package going back trough log.

This change makes it so error is printed for package that failed every
time.

Signed-off-by: Karel Kočí <[email protected]>

include/subdir.mk

@@ -23,7 +23,7 @@ define subtarget
 endef
 
 define ERROR
-	($(call MESSAGE, $(2)); $(if $(BUILD_LOG), echo "$(2)" >> $(BUILD_LOG_DIR)/$(1)/error.txt))
+	($(call MESSAGE, $(2)); $(if $(BUILD_LOG), echo "$(2)" >> $(BUILD_LOG_DIR)/$(1)/error.txt;) $(if $(3),, exit 1;))
 endef
 
 lastdir=$(word $(words $(subst /, ,$(1))),$(subst /, ,$(1)))
@@ -66,7 +66,7 @@ define subdir
       $(foreach btype,$(buildtypes-$(bd)),
         $(call warn_eval,$(1)/$(bd),t,T,$(1)/$(bd)/$(btype)/$(target): $(if $(NO_DEPS)$(QUILT),,$($(1)/$(bd)/$(btype)/$(target)) $(call $(1)//$(btype)/$(target),$(1)/$(bd)/$(btype))))
 		  $(call log_make,$(1)/$(bd),$(target),$(btype),$(filter-out __default,$(variant))) \
-			$(if $(findstring $(bd),$($(1)/builddirs-ignore-$(btype)-$(target))), || $(call ERROR,$(1),   ERROR: $(1)/$(bd) [$(btype)] failed to build.))
+			|| $(call ERROR,$(2),   ERROR: $(1)/$(bd) [$(btype)] failed to build.,$(findstring $(bd),$($(1)/builddirs-ignore-$(btype)-$(target))))
         $(if $(call diralias,$(bd)),$(call warn_eval,$(1)/$(bd),l,T,$(1)/$(call diralias,$(bd))/$(btype)/$(target): $(1)/$(bd)/$(btype)/$(target)))
       )
       $(call warn_eval,$(1)/$(bd),t,T,$(1)/$(bd)/$(target): $(if $(NO_DEPS)$(QUILT),,$($(1)/$(bd)/$(target)) $(call $(1)//$(target),$(1)/$(bd))))
@@ -74,7 +74,7 @@ define subdir
 			$(if $(BUILD_LOG),@mkdir -p $(BUILD_LOG_DIR)/$(1)/$(bd)/$(filter-out __default,$(variant)))
 			$(if $($(1)/autoremove),$(call rebuild_check,$(1)/$(bd),$(target),,$(filter-out __default,$(variant))))
 			$(call log_make,$(1)/$(bd),$(target),,$(filter-out __default,$(variant))) \
-				$(if $(findstring $(bd),$($(1)/builddirs-ignore-$(target))), || $(call ERROR,$(1),   ERROR: $(1)/$(bd) failed to build$(if $(filter-out __default,$(variant)), (build variant: $(variant))).))
+				|| $(call ERROR,$(1),   ERROR: $(1)/$(bd) failed to build$(if $(filter-out __default,$(variant)), (build variant: $(variant))).,$(findstring $(bd),$($(1)/builddirs-ignore-$(target)))) 
         )
       $(if $(PREREQ_ONLY)$(DUMP_TARGET_DB),,
         # aliases