Use -z,muldefs on arm,x86

Pull in changes from upstream PR#18197:

Assume that the linker can make sense of us passing in the -z,muldefs
option to tell it to ignore symbol-multiply-defined errors triggered by
golang/go#9510.  We should be able to stop
doing this once we move to Go 1.6.

Signed-off-by: Nalin Dahyabhai <nalin@redhat.com> (github: nalind)

hack/make/binary

@@ -19,6 +19,22 @@ if [ "$(go env GOOS)/$(go env GOARCH)" != "$(go env GOHOSTOS)/$(go env GOHOSTARC
  esac
 fi
 
+if [ "$(go env GOOS)" == "linux" ] ; then
+ case "$(go env GOARCH)" in
+ arm*|386)
+ # linking for Linux on arm or x86 needs external linking to avoid
+ # https://github.com/golang/go/issues/9510 until we move to Go 1.6
+ if [ "$IAMSTATIC" == "true" ] ; then
+ export EXTLDFLAGS_STATIC="$EXTLDFLAGS_STATIC -zmuldefs"
+ export LDFLAGS_STATIC_DOCKER="$LDFLAGS_STATIC -extldflags \"$EXTLDFLAGS_STATIC\""
+
+ else
+ export LDFLAGS="$LDFLAGS -extldflags -zmuldefs"
+ fi
+ ;;
+ esac
+fi
+
 echo "Building: $DEST/$BINARY_FULLNAME"
 go build \
  -o "$DEST/$BINARY_FULLNAME" \