Makefile: fix block.mk support when running outside of ORFS folder

block.mk, as is used in designs/asap7/aes-blocks/ didn't work
for source folders outside of ORFS:

cd myfolder
. ~/OpenROAD-flow-scripts/env.sh
make -f ~/OpenROAD-flow-scripts/flow/Makefile DESIGN_CONFIG=config.mk

Signed-off-by: Øyvind Harboe <[email protected]>

Author: oharboe

flow/Makefile

@@ -377,7 +377,7 @@ ifeq ($(wildcard $(3)),)
 # each macro.
 block := $(patsubst ./designs/$(PLATFORM)/$(DESIGN_NICKNAME)/%,%,$(dir $(3)))
 $(1) $(2) &:
-	$$(UNSET_AND_MAKE) DESIGN_NAME=${block} DESIGN_NICKNAME=$$(DESIGN_NICKNAME)_${block} DESIGN_CONFIG=./designs/$$(PLATFORM)/$$(DESIGN_NICKNAME)/block.mk generate_abstract
+	$$(UNSET_AND_MAKE) DESIGN_NAME=${block} DESIGN_NICKNAME=$$(DESIGN_NICKNAME)_${block} DESIGN_CONFIG=$$(shell dirname $$(DESIGN_CONFIG))/block.mk generate_abstract
 else
 # There is a unique config.mk for this Verilog module
 $(1) $(2) &: