Index: src/Makefile
--- src/Makefile.orig	2020-04-15 15:00:29.000000000 +0200
+++ src/Makefile	2020-07-01 15:28:09.403488000 +0200
@@ -20,10 +20,10 @@
 SYSLDFLAGS=
 SYSLIBS=
 
-MYCFLAGS=
-MYLDFLAGS=
-MYLIBS=
-MYOBJS=
+MYCFLAGS?=
+MYLDFLAGS?=
+MYLIBS?=
+MYOBJS?=
 
 # Special flags for compiler modules; -Os reduces code size.
 CMCFLAGS= -Os
@@ -111,20 +111,20 @@
 	@echo ''
 
 FreeBSD NetBSD OpenBSD freebsd:
-	$(MAKE) $(ALL) SYSCFLAGS="-DLUA_USE_LINUX -DLUA_USE_READLINE -I/usr/include/edit" SYSLIBS="-Wl,-E -ledit" CC="cc"
+	$(MAKE) $(ALL) SYSCFLAGS="-DLUA_USE_LINUX"
 
 generic: $(ALL)
 
 Linux linux:	linux-noreadline
 
 linux-noreadline:
-	$(MAKE) $(ALL) SYSCFLAGS="-DLUA_USE_LINUX" SYSLIBS="-Wl,-E -ldl"
+	$(MAKE) $(ALL) SYSCFLAGS="-DLUA_USE_LINUX"
 
 linux-readline:
 	$(MAKE) $(ALL) SYSCFLAGS="-DLUA_USE_LINUX -DLUA_USE_READLINE" SYSLIBS="-Wl,-E -ldl -lreadline"
 
 Darwin macos macosx:
-	$(MAKE) $(ALL) SYSCFLAGS="-DLUA_USE_MACOSX -DLUA_USE_READLINE" SYSLIBS="-lreadline"
+	$(MAKE) $(ALL) SYSCFLAGS="-DLUA_USE_MACOSX"
 
 mingw:
 	$(MAKE) "LUA_A=lua54.dll" "LUA_T=lua.exe" \