--- unix/configure.orig	2021-11-04 15:04:06 UTC
+++ unix/configure
@@ -7323,6 +7323,10 @@ fi
 
 	    case $system in
 	    DragonFly-*|FreeBSD-*)
+		SHLIB_LD_LIBS="${SHLIB_LD_LIBS} -Wl,-soname,\$@"
+		UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
+		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so.1'
+		TCL_LIB_VERSIONS_OK=nodots
 		if test "${TCL_THREADS}" = "1"; then
 
 		    # The -pthread needs to go in the LDFLAGS, not LIBS