ok? mostly shows up in vendored libffi, but it's in autoconf-archive
so other things might pick it up.

Index: config.no-gsed
===================================================================
RCS file: /cvs/ports/infrastructure/db/config.no-gsed,v
diff -u -p -r1.3 config.no-gsed
--- config.no-gsed	16 Apr 2013 12:09:36 -0000	1.3
+++ config.no-gsed	4 Mar 2025 14:15:12 -0000
@@ -3,6 +3,7 @@
 ac_cv_path_SED=${ac_cv_path_SED=/usr/bin/sed}
 ac_cv_prog_SED=${ac_cv_prog_SED=/usr/bin/sed}
 lt_cv_path_SED=${lt_cv_path_SED=/usr/bin/sed}
+ax_enable_builddir_sed=${ax_enable_builddir_sed=/usr/bin/sed}
 # workaround bug in common autoconf fragment, SED is only set
 # if lt_cv_path_SED is not set.
 SED=${SED=/usr/bin/sed}