--- Makefile.orig	2009-09-20 11:00:57 UTC
+++ Makefile
@@ -2,9 +2,9 @@
 # Makefile,v 1.7 2005/12/07 02:57:18 kuniaki Exp
 
 PROGS		= aslookup
-VERSION		= beta0.13c
+VERSION		= beta0.13d
 DISTNAME	= $(PROGS)-$(VERSION)
-CVSTAG		= b013c
+CVSTAG		= b013d
 CVS_COMMAND	= cvs
 INSTALLCMD	= /usr/bin/install
 
@@ -22,7 +22,7 @@ TARCMD	=/usr/bin/tar
 SHELL	=/bin/sh
 .SUFFIXES: .c .o
 
-CC	= gcc
+CC	?= gcc
 
 BINDIR	=/usr/local/bin
 
@@ -34,12 +34,12 @@ MANDIR	=/usr/local/man/man1
 # if you have radb mirror server (trawhois), you specify RALOCAL flag.
 # Because aslookup will use local radb server.
 # AND, If you are using solaris, Please add option "-DSOLARIS".
-# CFLAGS  =
-# CFLAGS  = -DJPIXDB -DJPNICDB -DAPNICDB -g -O
-CFLAGS  = -DRALOCAL -DJPNICDB -DAPNICDB -g -O
-# CFLAGS  = -DJPNICDB -DAPNICDB -DLOG -DSOLARIS -g -O
-# CFLAGS  = -DARINDB -DJPNICDB -DAPNICDB -DLOG -DDEBUG -g -O
-# CFLAGS  = -DARINDB -DJPNICDB -DAPNICDB -g -O
+# CFLAGS  +=
+# CFLAGS  += -DJPIXDB -DJPNICDB -DAPNICDB -g -O
+# CFLAGS  += -DRALOCAL -DJPNICDB -DAPNICDB -g -O
+# CFLAGS  += -DJPNICDB -DAPNICDB -DLOG -DSOLARIS -g -O
+# CFLAGS  += -DARINDB -DJPNICDB -DAPNICDB -DLOG -DDEBUG -g -O
+# CFLAGS  += -DARINDB -DJPNICDB -DAPNICDB -g -O
 INCDIR	= -I./
 
 # This line is for solaris.