From 7517e9fe05613930cb7cd307a70071c4ebb1f468 Mon Sep 17 00:00:00 2001
From: Michael Gernoth <michael@gernoth.net>
Date: Sat, 26 May 2007 23:07:08 +0200
Subject: [PATCH] add lib32 target to build a 32 bit library on 64 bit systems

---
 Makefile | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index bd63135..1681706 100644
--- a/Makefile
+++ b/Makefile
@@ -2,6 +2,13 @@
 #a Parallel Cable III
 CFLAGS=-Wall -fPIC -DUSB_DRIVER_VERSION="\"$(shell stat -c '%y' usb-driver.c |cut -d\. -f1)\"" #-DFORCE_PC3_IDENT
 
+MARCH := $(shell uname -m)
+ifeq ($(MARCH),x86_64)
+CFLAGS += -m64
+else
+CFLAGS += -m32
+endif
+
 FTDI := $(shell libftdi-config --libs 2>/dev/null)
 ifneq ($(FTDI),)
 JTAGKEYSRC = jtagkey.c
@@ -11,12 +18,18 @@ endif
 SOBJECTS=libusb-driver.so libusb-driver-DEBUG.so
 
 all: $(SOBJECTS)
+ifeq ($(MARCH),x86_64)
+	@echo Built library is 64 bit. Run \`make lib32\' to build a 32 bit version
+endif
 
 libusb-driver.so: usb-driver.c parport.c jtagkey.c config.c jtagmon.c usb-driver.h parport.h jtagkey.h config.h jtagmon.h Makefile
-	gcc $(CFLAGS) usb-driver.c parport.c config.c jtagmon.c $(JTAGKEYSRC) -o $@ -ldl -lusb -lpthread $(FTDI) -shared
+	$(CC) $(CFLAGS) usb-driver.c parport.c config.c jtagmon.c $(JTAGKEYSRC) -o $@ -ldl -lusb -lpthread $(FTDI) -shared
 
 libusb-driver-DEBUG.so: usb-driver.c parport.c jtagkey.c config.c jtagmon.c usb-driver.h parport.h jtagkey.h config.h jtagmon.h Makefile
-	gcc -DDEBUG $(CFLAGS) usb-driver.c parport.c config.c jtagmon.c $(JTAGKEYSRC) -o $@ -ldl -lusb -lpthread $(FTDI) -shared
+	$(CC) -DDEBUG $(CFLAGS) usb-driver.c parport.c config.c jtagmon.c $(JTAGKEYSRC) -o $@ -ldl -lusb -lpthread $(FTDI) -shared
+
+lib32:
+	$(MAKE) MARCH=i386 clean all
 
 clean:
 	rm -f $(SOBJECTS)
-- 
2.39.2