diff -Naur mandoc-1.14.5.orig/configure mandoc-1.14.5/configure
--- mandoc-1.14.5.orig/configure	2019-03-10 05:56:43.000000000 -0400
+++ mandoc-1.14.5/configure	2020-06-04 00:58:11.869164648 -0400
@@ -41,7 +41,7 @@
 OSNAME=
 UTF8_LOCALE=
 
-CC=`printf "all:\\n\\t@echo \\\$(CC)\\n" | env -i make -sf -`
+CC=gcc
 CFLAGS=
 LDADD=
 LDFLAGS=