$NetBSD: patch-is__utf8_Makefile,v 1.3 2023/12/02 19:57:28 schmonz Exp $

Don't forcibly override CC.

--- is_utf8/Makefile.orig	2023-12-02 19:55:52.485584012 +0000
+++ is_utf8/Makefile
@@ -37,7 +37,7 @@ LINKERNAME = lib$(NAME).so
 SONAME = $(LINKERNAME).$(VERSION)
 REALNAME = $(SONAME).$(MINOR).$(RELEASE)
 
-CC = gcc
+CC ?= gcc
 CFLAGS ?= -O3 -Wextra -Wall -ansi -Wstrict-prototypes
 
 $(NAME): $(OBJ)