am 7a772619: Merge "core: support make 4.00"

* commit '7a77261988354b13996e5ba84b87351b571a5a52':
  core: support make 4.00
diff --git a/core/main.mk b/core/main.mk
index b49b969..511d19e 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -40,17 +40,15 @@
 # Check for broken versions of make.
 # (Allow any version under Cygwin since we don't actually build the platform there.)
 ifeq (,$(findstring CYGWIN,$(shell uname -sm)))
-ifeq (0,$(shell expr $$(echo $(MAKE_VERSION) | sed "s/[^0-9\.].*//") = 3.81))
-ifeq (0,$(shell expr $$(echo $(MAKE_VERSION) | sed "s/[^0-9\.].*//") = 3.82))
+ifneq (1,$(strip $(shell expr $(MAKE_VERSION) \>= 3.81)))
 $(warning ********************************************************************************)
 $(warning *  You are using version $(MAKE_VERSION) of make.)
-$(warning *  Android can only be built by versions 3.81 and 3.82.)
+$(warning *  Android can only be built by versions 3.81 and higher.)
 $(warning *  see https://source.android.com/source/download.html)
 $(warning ********************************************************************************)
 $(error stopping)
 endif
 endif
-endif
 
 # Absolute path of the present working direcotry.
 # This overrides the shell variable $PWD, which does not necessarily points to