Index: databases/db48/Makefile
===================================================================
--- databases/db48/Makefile
+++ databases/db48/Makefile
@@ -35,7 +35,7 @@
 
 .include <bsd.port.options.mk>
 
-.if ${ARCH} == "armv6"
+.if ${ARCH} == "aarch64" || ${ARCH} == "armv6"
 # db48 uses a deprecated instruction for mutexes on ARM, fbsd bug#197227
 CONFIGURE_ARGS+=	--enable-posixmutexes
 .endif
Index: databases/db5/Makefile
===================================================================
--- databases/db5/Makefile
+++ databases/db5/Makefile
@@ -39,7 +39,7 @@
 
 .include <bsd.port.options.mk>
 
-.if ${ARCH} == "armv6"
+.if ${ARCH} == "aarch64" || ${ARCH} == "armv6"
 # db5 uses a deprecated instruction for mutexes on ARM, fbsd bug#197227
 CONFIGURE_ARGS+=	--enable-posixmutexes
 .endif
Index: databases/db6/Makefile
===================================================================
--- databases/db6/Makefile
+++ databases/db6/Makefile
@@ -40,7 +40,7 @@
 
 .include <bsd.port.options.mk>
 
-.if ${ARCH} == "armv6"
+.if ${ARCH} == "aarch64" || ${ARCH} == "armv6"
 # db6 uses a deprecated instruction for mutexes on ARM, fbsd bug#197227
 CONFIGURE_ARGS+=	--enable-posixmutexes
 .endif