Add Remove All Whitespace in Gnu Make (TheRenegadeCoder#4995)

Author: rzuckerm

archive/g/gnu-make/remove-all-whitespace.mk

@@ -0,0 +1,31 @@
+USAGE := Usage: please provide a string
+
+# Constants
+EMPTY :=
+SPACE := $(EMPTY) $(EMPTY)
+
+# Note that this is non-portable, but it's the only way I could get a carriage return
+# assigned to a variable
+CR := $(shell printf '\r')
+
+# Remove all whitespace
+#
+# Note that GNU Make automatically converts tab and newline ('\n') to a space and
+# that leading and trailing whitespace are ignore, so all that needs to be done
+# is to remove carriage return (`\r') and space.
+#
+# Arg 1: The string
+# Return: The string without whitespace
+REMOVE_ALL_WHITESPACE = $(subst $(CR),,$(subst $(SPACE),,$(1)))
+
+# If string not provided, display usage statement
+# Else display string without whitespace
+ifeq (,$(ARGV1))
+$(info $(USAGE))
+else
+NUMBER := $(call CONVERT_NUMBER,$(strip $(ARGV1)))
+$(info $(call REMOVE_ALL_WHITESPACE,$(ARGV1)))
+endif
+
+.PHONY:
+all: ;@: