make chan_misdn build on x86-64

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@9123 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/misdn/Makefile

@@ -6,6 +6,9 @@
 
 # Verify those options with main Makefile
 CFLAGS		= -pipe -c -Wall
+ifeq ($(PROC),x86_64)
+CFLAGS	       += -fPIC
+endif
 SOURCES		= isdn_lib.c isdn_msg_parser.c 
 OBJDIR		= .
 OBJS		= isdn_lib.o isdn_msg_parser.o fac.o
@@ -16,7 +19,7 @@ all: chan_misdn_lib.a
 
 %.o: %.c
 	$(CC) $(CFLAGS) -o $@ $<
-	
+
 
 chan_misdn_lib.a:	$(OBJS)
 	ar crv $@ $(OBJS)
@@ -26,7 +29,7 @@ misdn:
 	cd lib ; cvs -d:pserver:anonymous:readonly@cvs.isdn4linux.de:/i4ldev co -r mqueue mISDN mISDNuser ; 
 	cd lib/mISDN ; make install
 	cd lib/mISDNuser ; make install
-	
+
 FORCE:
 
 clean: