When cleaning up legacy hotspot settings in JDK-8170651, a bit too much
was removed. Now we can't cross compile certain arm platforms.
Bug: https://bugs.openjdk.java.net/browse/JDK-8170784
Patch:
diff -r 9475c1488d29 common/autoconf/buildjdk-spec.gmk.in
--- a/common/autoconf/buildjdk-spec.gmk.in
+++ b/common/autoconf/buildjdk-spec.gmk.in
@@ -89,4 +89,10 @@
# Control wether Hotspot builds gtest tests
BUILD_GTEST := false
JVM_VARIANTS := server
+
+# Some users still set EXTRA_*FLAGS on the make command line. Must
+# make sure to override that when building buildjdk.
+override EXTRA_CFLAGS :=
+override EXTRA_CXXFLAGS :=
+override EXTRA_LDFLAGS :=
/Erik
