added 64bit check for -fPIC for .so file generation. also removed optimization, better debugging is now more important than speed i would say.

Makefile

@@ -28,11 +28,13 @@ export INCLUDEDIR
 LIBDIR=/usr/lib
 export LIBDIR
 
-CFLAGS:= -g -Wall -O2 -I $(INCLUDEDIR) -I $(MISDNINCLUDEDIR)
+CFLAGS:= -g -Wall -I $(INCLUDEDIR) -I $(MISDNINCLUDEDIR)
 CFLAGS+= -D CLOSE_REPORT=1
 
 #disable this if your system does not support PIC (position independent code)
-#CFLAGS+=-fPIC
+ifeq ($(shell uname -m),x86_64)
+CFLAGS         += -fPIC
+endif
 
 export CFLAGS
 

i4lnet/Makefile

@@ -14,6 +14,11 @@ ISDNNET_OBJ = net_if.o isdn_debug.o isdn_msg.o fsm.o net_l2.o tei.o net_l3.o \
 		manager.o tone.o bchannel.o g711.o
 ISDNNET_PICOBJ = $(ISDNNET_OBJ:%.o=%.lo)
 
+ifeq ($(shell uname -m),x86_64)
+CFLAGS         += -fPIC
+endif
+
+
 libisdnnet_pic.a: $(ISDNNET_PICOBJ)
 	$(AR) cru $@ $^
 	$(RANLIB) $@
@@ -23,7 +28,7 @@ libisdnnet.a: $(ISDNNET_OBJ)
 	$(RANLIB) $@
 
 libisdnnet.so: $(ISDNNET_OBJ)
-	$(CC) -fPIC -shared -Xlinker -x -o $@ $^
+	$(CC) $(CFLAGS) -shared -Xlinker -x -o $@ $^
 
 .c.o:
 	$(CC) $(CFLAGS) -o $@ -c $<

lib/Makefile

@@ -12,6 +12,10 @@ install:
 LIBMISDN_OBJS = device.o layer.o stack.o status.o
 LIBMISDN_PICOBJS = $(LIBMISDN_OBJS:%.o=%.lo)
 
+ifeq ($(shell uname -m),x86_64)
+CFLAGS         += -fPIC
+endif
+
 libmISDN_pic.a: $(LIBMISDN_PICOBJS)
 	$(AR) cru $@ $^
 	$(RANLIB) $@
@@ -21,7 +25,7 @@ libmISDN.a: $(LIBMISDN_OBJS)
 	$(RANLIB) $@
 
 libmISDN.so: $(LIBMISDN_OBJS)
-	$(CC) -fPIC -shared -Xlinker -x -o $@ $^
+	$(CC) $(CFLAGS) -shared -Xlinker -x -o $@ $^
 
 .c.o:
 	$(CC) $(CFLAGS) -o $@ -c $<