HOST_JDK_TOOLS_JAR :=
else
HOST_JDK_TOOLS_JAR:= $(shell $(BUILD_SYSTEM)/find-jdk-tools-jar.sh)
+ifeq ($(wildcard $(HOST_JDK_TOOLS_JAR)),)
+$(error Error: could not find jdk tools.jar, please install JDK6, \
+ which you can download from java.sun.com)
+endif
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