Don't compile loclass

Makefile.am

@@ -1,6 +1,6 @@
 AM_CFLAGS = $(LIBNFC_CFLAGS)
 
-SUBDIRS = loclass/loclass src
+SUBDIRS = src
 
 style:
 	find . -path ./loclass -prune -o -name "*.[ch]" -exec perl -pi -e 's/[ \t]+$$//' {} \;

README.md

@@ -7,8 +7,12 @@ A CLI tool for reading and writing HID iClass (Picopass) Access Control cards.
 
 ```
 git submodule update --init
+# There is a spurious .o committed in loclass, we need to remove it:
+( cd loclass/loclass && make clean )
 autoreconf -vis
-./configure
+rm -rf build && mkdir build
+cd build
+../configure
 make
 sudo make install
 ```

src/Makefile.am

@@ -1,16 +1,10 @@
 AM_CFLAGS  = @libnfc_CFLAGS@
-AM_CPPFLAGS = $(all_includes) -I ../loclass/loclass
+AM_CPPFLAGS = $(all_includes) -I @srcdir@/../loclass/loclass
 
 bin_PROGRAMS = nfc-iclass
-
-nfc_iclass_SOURCES = nfc-iclass.c iclass.c iclass.h nfc-utils.c nfc-utils.h
-nfc_iclass_LDADD = ../loclass/loclass/ikeys.o \
-                   ../loclass/loclass/cipher.o \
-                   ../loclass/loclass/optimized_cipher.o \
-                   ../loclass/loclass/cipherutils.o \
-                   ../loclass/loclass/elite_crack.o \
-                   ../loclass/loclass/des.o \
-                   ../loclass/loclass/fileutils.o\
-		   @libnfc_LIBS@
+VPATH = @srcdir@:@srcdir@/../loclass/loclass
+nfc_iclass_SOURCES = nfc-iclass.c iclass.c iclass.h nfc-utils.c nfc-utils.h \
+                     ikeys.c cipher.c optimized_cipher.c cipherutils.c elite_crack.c des.c fileutils.c
+nfc_iclass_LDADD = @libnfc_LIBS@
 
 dist_man_MANS = nfc-iclass.1