diff --git a/core/config.mk b/core/config.mk
index a3bcbf1..f8bee80 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -267,6 +267,12 @@
 HOST_JDK_TOOLS_JAR:= $(shell $(BUILD_SYSTEM)/find-jdk-tools-jar.sh)
 endif
 
+# Is the host JDK 64-bit version?
+HOST_JDK_IS_64BIT_VERSION :=
+ifneq ($(filter 64-Bit, $(shell java -version 2>&1)),)
+HOST_JDK_IS_64BIT_VERSION := true
+endif
+
 # It's called md5 on Mac OS and md5sum on Linux
 ifeq ($(HOST_OS),darwin)
 MD5SUM:=md5 -q
diff --git a/core/main.mk b/core/main.mk
index b288080..3da0648 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -70,17 +70,6 @@
 
 $(info Checking build tools versions...)
 
-ifeq ($(BUILD_OS),linux)
-build_arch := $(shell uname -m)
-ifneq (64,$(findstring 64,$(build_arch)))
-$(warning ************************************************************)
-$(warning You are attempting to build on a 32-bit system.)
-$(warning Only 64-bit build environments are supported beyond froyo/2.2.)
-$(warning ************************************************************)
-$(error stop)
-endif
-endif
-
 ifneq ($(HOST_OS),windows)
 ifneq ($(HOST_OS)-$(HOST_ARCH),darwin-ppc)
 # check for a case sensitive file system