Index: hamlib-1.2.15.3/configure.ac
===================================================================
--- hamlib-1.2.15.3.orig/configure.ac	2012-11-01 22:27:27.000000000 +0100
+++ hamlib-1.2.15.3/configure.ac	2014-06-15 09:34:25.557966205 +0200
@@ -234,12 +234,12 @@
 		"You need a C99 compliant C compiler that supports struct/array intializers."
 		"Have you considered GCC lately?.")]);
 
-dnl libxml2 required rigmem xml support
-PKG_CHECK_MODULES([LIBXML2], [libxml-2.0],
-	[AC_DEFINE(HAVE_XML2,[1],[Define if libxml2 is available])],
-	[AC_MSG_WARN([libxml-2.0 pkg-config not found, XML support will be disabled])])
+#dnl libxml2 required rigmem xml support
+#PKG_CHECK_MODULES([LIBXML2], [libxml-2.0],
+#	[AC_DEFINE(HAVE_XML2,[1],[Define if libxml2 is available])],
+#	[AC_MSG_WARN([libxml-2.0 pkg-config not found, XML support will be disabled])])
 AC_SUBST(LIBXML2_LIBS)
 AC_SUBST(LIBXML2_CFLAGS)
 
 dnl Check if libgd-dev is installed, so we can enable rigmatrix
 
@@ -406,7 +406,7 @@
 AM_CONDITIONAL(HAVE_USRP, test x"${cf_with_usrp}" = "xyes")
 
 
-PKG_CHECK_MODULES(LIBUSB, libusb >= 0.1, ,
+PKG_CHECK_MODULES(LIBUSB, libusb >= 1.0, ,
 		  [AC_MSG_WARN([libusb pkg-config not found, USB backends will be disabled])])
 CFLAGS="${CFLAGS} ${LIBUSB_CFLAGS}"
 CXXFLAGS="${CXXFLAGS} ${LIBUSB_CFLAGS}"