--- gnattools/configure.orig	2020-03-04 19:30:02.000000000 +1100
+++ gnattools/configure	2020-09-07 17:06:02.554937000 +1000
@@ -2047,6 +2047,11 @@
     mlib-tgt-specific.adb<mlib-tgt-specific-linux.adb \
     indepsw.adb<indepsw-gnu.adb"
     ;;
+  *-*-bsdsunix*)
+    TOOLS_TARGET_PAIRS="\
+    mlib-tgt-specific.adb<mlib-tgt-specific-linux.adb \
+    indepsw.adb<indepsw-gnu.adb"
+    ;;
   *-*-freebsd*)
     TOOLS_TARGET_PAIRS="\
     mlib-tgt-specific.adb<mlib-tgt-specific-linux.adb \