--- configure.ac.orig	2023-03-25 20:10:06 UTC
+++ configure.ac
@@ -22,7 +22,7 @@ build_linux=no
 build_mac=no
 
 case "${host_os}" in
-    linux*)
+    linux*|freebsd*)
         build_linux=yes
         ;;
     cygwin*|mingw*)