diff --git a/Makefile.am b/Makefile.am
index e7d31c6..0d087f4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,22 +1,16 @@
 AUTOMAKE_OPTIONS = foreign dist-bzip2 1.6
 
+include $(top_srcdir)/Makefile.flags.am
+
 SUBDIRS = etc include src
 
-DEFAULT_AM_CFLAGS = -std=gnu99
+if ENABLE_FIRMWARE
+else
+SUBDIRS += utils
+endif
 
 if ENABLE_WIN32
 SUBDIRS += win32
-LINKOPTS = -mno-cygwin
-AM_CFLAGS = $(DEFAULT_AM_CFLAGS) -mno-cygwin
-else
-LINKOPTS = -lusb
-AM_CFLAGS = $(DEFAULT_AM_CFLAGS)
-endif
-
-if ENABLE_FIRMWARE
-AM_CFLAGS += -DLIBRFID_FIRMWARE
-else
-SUBDIRS += utils
 endif
 
 EXTRA_DIST = LICENSING librfid.spec openct-cm5121-librfid.patch
diff --git a/Makefile.flags.am b/Makefile.flags.am
new file mode 100644
index 0000000..c6c4844
--- /dev/null
+++ b/Makefile.flags.am
@@ -0,0 +1,18 @@
+LIBVERSION= 0:0:0
+
+AM_CFLAGS = -std=gnu99
+INCLUDES = $(all_includes) -I$(top_srcdir)/include
+
+if ENABLE_WIN32
+AM_LDFLAGS = -mno-cygwin
+AM_CFLAGS += -mno-cygwin
+else
+if HAVE_LIBUSB
+AM_LDFLAGS = -lusb
+AM_CFLAGS += -DHAVE_LIBUSB
+endif
+endif
+
+if ENABLE_FIRMWARE
+AM_CFLAGS += -DLIBRFID_FIRMWARE
+endif
diff --git a/configure.in b/configure.in
index e65cdbd..3199c1b 100644
--- a/configure.in
+++ b/configure.in
@@ -37,6 +37,11 @@ AC_ARG_ENABLE(openct,
         [ENABLE_OPENCT="${enableval}"],
         [ENABLE_OPENCT="no"])
 
+AC_ARG_ENABLE(spidev,
+	[  --enable-spidev      Enable spidev reader],
+	[ENABLE_SPIDEV=1], [ENABLE_SPIDEV=0])
+AM_CONDITIONAL(ENABLE_SPIDEV, test "$ENABLE_SPIDEV" == "1")
+
 OPENCT_MSG=no
 if test "x${ENABLE_OPENCT}" = "xyes"; then
         PKG_CHECK_MODULES(OPENCT, [libopenct], [
@@ -63,8 +68,8 @@ AM_CONDITIONAL(ENABLE_STATIC, test "$ENABLE_STATIC" == "1")
 
 AC_ARG_WITH()
 
-AC_CHECK_LIB(usb, usb_close,,)
-AM_CONDITIONAL(HAVE_LIBUSB, test "x$have_libusb" = "xyes")
+AC_CHECK_LIB(usb, usb_close, [HAVE_LIBUSB=1], [HAVE_LIBUSB=0])
+AM_CONDITIONAL(HAVE_LIBUSB, test "$HAVE_LIBUSB" == "1")
 
 dnl Output the makefile
 AC_OUTPUT(Makefile etc/Makefile etc/udev/Makefile src/Makefile include/Makefile include/librfid/Makefile utils/Makefile src/librfid.pc win32/Makefile)
diff --git a/etc/Makefile.am b/etc/Makefile.am
index 9f94de1..92618ac 100644
--- a/etc/Makefile.am
+++ b/etc/Makefile.am
@@ -1,2 +1,3 @@
+include $(top_srcdir)/Makefile.flags.am
 
 SUBDIRS = udev
diff --git a/etc/udev/Makefile.am b/etc/udev/Makefile.am
index 215cd34..e266e50 100644
--- a/etc/udev/Makefile.am
+++ b/etc/udev/Makefile.am
@@ -1,2 +1,3 @@
+include $(top_srcdir)/Makefile.flags.am
 
 EXTRA_DIST = librfid.rules
diff --git a/include/Makefile.am b/include/Makefile.am
index dfaa277..d78be8d 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -1,2 +1,3 @@
+include $(top_srcdir)/Makefile.flags.am
 
 SUBDIRS = librfid
diff --git a/include/librfid/Makefile.am b/include/librfid/Makefile.am
index 9af455b..63c997c 100644
--- a/include/librfid/Makefile.am
+++ b/include/librfid/Makefile.am
@@ -1,3 +1,4 @@
+include $(top_srcdir)/Makefile.flags.am
 
 pkginclude_HEADERS = rfid.h rfid_scan.h rfid_asic.h rfid_asic_rc632.h \
 			rfid_layer2.h rfid_layer2_iso14443a.h \
diff --git a/include/librfid/rfid_reader.h b/include/librfid/rfid_reader.h
index af2f4be..21b740d 100644
--- a/include/librfid/rfid_reader.h
+++ b/include/librfid/rfid_reader.h
@@ -67,6 +67,7 @@ enum rfid_reader_id {
 	RFID_READER_CM5121,
 	RFID_READER_PEGODA,
 	RFID_READER_OPENPCD,
+	RFID_READER_SPIDEV,
 };
 
 struct rfid_reader_handle {
diff --git a/src/Makefile.am b/src/Makefile.am
index b3c1c24..1e132db 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,12 +1,15 @@
-LIBVERSION= 0:0:0
+include $(top_srcdir)/Makefile.flags.am
+
+AM_CFLAGS += -D__LIBRFID__ 
+INCLUDES += @OPENCT_CFLAGS@
 
 if ENABLE_FIRMWARE
-INCLUDES_FIRMWARE = -I$(FIRMWARE_PATH)/include -I$(FIRMWARE_PATH)/src -I$(GNUARM_PATH)/arm-elf/include
-AM_CFLAGS_FIRMWARE = -DLIBRFID_FIRMWARE -DLIBRFID_STATIC -D__MS_types__
+INCLUDES += -I$(FIRMWARE_PATH)/include -I$(FIRMWARE_PATH)/src -I$(GNUARM_PATH)/arm-elf/include
+AM_CFLAGS += -DLIBRFID_FIRMWARE -DLIBRFID_STATIC -D__MS_types__
 endif
 
 if ENABLE_STATIC
-AM_CFLAGS_STATIC = -DLIBRFID_STATIC
+AM_CFLAGS += -DLIBRFID_STATIC
 endif
 
 noinst_HEADERS=rfid_iso14443_common.h rc632.h libusb_dyn.h usleep.h
@@ -15,38 +18,40 @@ CORE=rfid.c rfid_layer2.c rfid_protocol.c rfid_reader.c rfid_scan.c
 L2=rfid_layer2_iso14443a.c rfid_layer2_iso14443b.c rfid_layer2_iso15693.c rfid_iso14443_common.c
 PROTO=rfid_proto_tcl.c rfid_proto_mifare_ul.c rfid_proto_mifare_classic.c
 ASIC=rfid_asic_rc632.c
-READER=rfid_reader_openpcd.c
 MISC=rfid_access_mifare_classic.c
 
 if ENABLE_WIN32
 WIN32=usleep.c libusb_dyn.c
 AM_LDLAGS_WIN32=-mno-cygwin -lwinmm
 AM_CFLAGS_WIN32=-mno-cygwin
+librfid_la_LIBADD = -lwinmm
+endif
+
+if HAVE_LIBUSB
+READER_OPENPCD=rfid_reader_openpcd.c
+AM_CFLAGS += -DENABLE_OPENPCD
+endif
+
+if ENABLE_SPIDEV
+READER_SPIDEV=rfid_reader_spidev.c
+AM_CFLAGS += -DENABLE_SPIDEV
 endif
 
 if ENABLE_CCID
 READER_CM5121=rfid_reader_cm5121.c ccid/rfid_reader_cm5121_ccid_direct.c ccid/ccid-driver.c
-AM_CFLAGS_CM5121= -DENABLE_CM5121
+AM_CFLAGS += -DENABLE_CM5121
 endif
 
 if HAVE_OPENCT
 READER_CM5121=rfid_reader_cm5121.c rfid_reader_cm5121_openct.c
-AM_CFLAGS_CM5121= -DENABLE_CM5121
+AM_CFLAGS += -DENABLE_CM5121
 endif
 
-INCLUDES = $(all_includes) -I$(top_srcdir)/include $(INCLUDES_FIRMWARE) \
-	   $(INCLUDES_STATIC) @OPENCT_CFLAGS@
-AM_CFLAGS = -std=gnu99 -D__LIBRFID__ $(AM_CFLAGS_FIRMWARE) $(AM_CFLAGS_STATIC) \
-	    $(AM_CFLAGS_CM5121) $(AM_CFLAGS_WIN32)
 
 lib_LTLIBRARIES = librfid.la
 librfid_la_LDFLAGS = -Wc,-nostartfiles -version-info $(LIBVERSION) $(AM_LDFLAGS_WIN32) @OPENCT_LIBS@
-librfid_la_SOURCES = $(CORE) $(L2) $(PROTO) $(ASIC) $(MISC) \
-		     $(READER) $(READER_CM5121) $(WIN32)
-
-if ENABLE_WIN32
-librfid_la_LIBADD = -lwinmm
-endif
+librfid_la_SOURCES = $(CORE) $(L2) $(PROTO) $(ASIC) $(MISC) $(WIN32) \
+		     $(READER_OPENPCD) $(READER_CM5121) $(READER_SPIDEV)
 
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = librfid.pc
diff --git a/src/rfid_reader.c b/src/rfid_reader.c
index e0f0d3d..39a4a07 100644
--- a/src/rfid_reader.c
+++ b/src/rfid_reader.c
@@ -24,12 +24,18 @@
 #include <librfid/rfid_reader.h>
 #include <librfid/rfid_reader_cm5121.h>
 #include <librfid/rfid_reader_openpcd.h>
+#include <librfid/rfid_reader_spidev.h>
 
 static const struct rfid_reader *rfid_readers[] = {
+#ifdef HAVE_LIBUSB
 #ifdef ENABLE_CM5121
 	[RFID_READER_CM5121]	= &rfid_reader_cm5121,
 #endif
 	[RFID_READER_OPENPCD]	= &rfid_reader_openpcd,
+#endif
+#ifdef ENABLE_SPIDEV
+	[RFID_READER_SPIDEV]	= &rfid_reader_spidev,
+#endif
 };
 
 struct rfid_reader_handle *
diff --git a/utils/Makefile.am b/utils/Makefile.am
index cd4adbc..3cdf089 100644
--- a/utils/Makefile.am
+++ b/utils/Makefile.am
@@ -1,7 +1,4 @@
-INCLUDES = $(all_includes) -I$(top_srcdir)/include
-
-if ENABLE_FIRMWARE
-else
+include $(top_srcdir)/Makefile.flags.am
 
 man_MANS = librfid-tool.1 mifare-tool.1 librfid-send_script.1
 
@@ -26,5 +23,3 @@ librfid_send_script_LDFLAGS = $(LINKOPTS)
 librfid_tool_LDFLAGS = $(LINKOPTS)
 mifare_tool_LDFLAGS = $(LINKOPTS)
 endif
-
-endif
diff --git a/win32/Makefile.am b/win32/Makefile.am
index f565f1f..0821168 100644
--- a/win32/Makefile.am
+++ b/win32/Makefile.am
@@ -1,9 +1,8 @@
-LIBVERSION= 0:0:0
+include $(top_srcdir)/Makefile.flags.am
 
 noinst_HEADERS = openpcd.h
 noinst_DATA = openpcd.dll
 
-INCLUDES = -I$(top_srcdir)/include
 LIBRFID_DIR = $(top_builddir)/src/.libs/
 CLEANFILES = $(noinst_DATA)