make/common/MakeBase.gmk

@@ -43,10 +43,15 @@
 
 ##############################
 # Functions
 ##############################
 
+### Debug functions
+
+# Prints the name and value of a variable
+PrintVar = \
+    $(info $(strip $1) >$($(strip $1))<)
 
 ### Functions for timers
 
 # Store the build times in this directory.
 BUILDTIMESDIR=$(OUTPUT_ROOT)/make-support/build-times

@@ -556,10 +561,17 @@
 # String equals
 equals = \
     $(and $(findstring $(strip $1),$(strip $2)),\
         $(findstring $(strip $2),$(strip $1)))
 
+# Remove a whole list of prefixes
+# $1 - List of prefixes
+# $2 - List of elements to process
+remove-prefixes = \
+    $(strip $(if $1,$(patsubst $(firstword $1)%,%,\
+      $(call remove-prefixes,$(filter-out $(firstword $1),$1),$2)),$2))
+
 ################################################################################
 
 ifneq ($(DISABLE_CACHE_FIND), true)
   # In Cygwin, finds are very costly, both because of expensive forks and because
   # of bad file system caching. Find is used extensively in $(shell) commands to