--- ed-1.22.5.orig/configure	2026-02-06 22:08:05.000000000 +0100
+++ ed-1.22.5/configure	2026-05-17 13:40:19.635717072 +0200
@@ -21,9 +21,9 @@ datarootdir='$(prefix)/share'
 infodir='$(datarootdir)/info'
 mandir='$(datarootdir)/man'
 program_prefix=
-CC=gcc
+CC?=gcc
 CPPFLAGS=
-CFLAGS='-Wall -W -O2'
+CFLAGS?='-Wall -W -O2'
 LDFLAGS=
 MAKEINFO=makeinfo
 
