Description https://github.com/JuliaLang/julia/pull/31399/files
--- a/Make.inc
+++ b/Make.inc
@@ -850,6 +850,7 @@
 ifneq (,$(findstring aarch64,$(ARCH)))
 OPENBLAS_DYNAMIC_ARCH:=0
 OPENBLAS_TARGET_ARCH:=ARMV8
+BINARY:=64
 endif
 
 # Set MARCH-specific flags
