--- /dev/null
+---
+ configure.in | 35 +++++++++++------------------------
+ 1 file changed, 11 insertions(+), 24 deletions(-)
+
+--- a/configure.in
++++ b/configure.in
+@@ -8,30 +8,17 @@
+ AM_PROG_LIBTOOL
+ AC_PROG_CXX
+
+-dnl check for libusb-config
+-AC_CHECK_TOOL(HAVELIBUSB, libusb-config)
+-
+-if test ! -z "$HAVELIBUSB"; then
+- LIBUSB_CFLAGS=`$HAVELIBUSB --cflags`
+- LIBUSB_LIBS=`$HAVELIBUSB --libs`
+-
+- CFLAGS="$CFLAGS $LIBUSB_CFLAGS"
+- LIBS="$LIBS $LIBUSB_LIBS"
+-else
+- AC_MSG_ERROR([*** libusb-config not found. You need a working libusb installation.])
+-fi
+-
+-dnl check for version of libusb
+-AC_MSG_CHECKING([if libusb version is >= 0.1.7])
+-libusb_version_needed="1007"
+-libusb_version=`$HAVELIBUSB --version | sed -e "s/libusb //" | awk 'BEGIN { FS = "."; } { printf "%d", ($''1 * 1000 + $''2) * 1000 + $''3;}'`
++dnl check for libusb
++PKG_CHECK_MODULES(LIBUSB, libusb >= 0.1.11)
++CFLAGS="$CFLAGS $LIBUSB_CFLAGS"
++LIBS="$LIBS $LIBUSB_LIBS"
+
+-if test $libusb_version -lt $libusb_version_needed; then
+- AC_MSG_RESULT(no)
+- AC_MSG_ERROR([*** libusb is too old ($libusb_version). You need a libusb installation newer or equal to 0.1.7.])
+-else
+- AC_MSG_RESULT(yes)
+-fi
++dnl Check for recent pkg-config which supports Requires.private
++case `$PKG_CONFIG --version` in
++0.?|0.1[0-7]) PKGCONFIG_REQUIRES="Requires"; ;;
++*) PKGCONFIG_REQUIRES="Requires.private"; ;;
++esac
++AC_SUBST(PKGCONFIG_REQUIRES)
+
+ ENABLE_ASYNC_MODE=0
+ AC_ARG_WITH(async-mode,
+++ /dev/null
----
- configure.in | 35 +++++++++++------------------------
- 1 file changed, 11 insertions(+), 24 deletions(-)
-
---- a/configure.in
-+++ b/configure.in
-@@ -8,30 +8,17 @@
- AM_PROG_LIBTOOL
- AC_PROG_CXX
-
--dnl check for libusb-config
--AC_CHECK_TOOL(HAVELIBUSB, libusb-config)
--
--if test ! -z "$HAVELIBUSB"; then
-- LIBUSB_CFLAGS=`$HAVELIBUSB --cflags`
-- LIBUSB_LIBS=`$HAVELIBUSB --libs`
--
-- CFLAGS="$CFLAGS $LIBUSB_CFLAGS"
-- LIBS="$LIBS $LIBUSB_LIBS"
--else
-- AC_MSG_ERROR([*** libusb-config not found. You need a working libusb installation.])
--fi
--
--dnl check for version of libusb
--AC_MSG_CHECKING([if libusb version is >= 0.1.7])
--libusb_version_needed="1007"
--libusb_version=`$HAVELIBUSB --version | sed -e "s/libusb //" | awk 'BEGIN { FS = "."; } { printf "%d", ($''1 * 1000 + $''2) * 1000 + $''3;}'`
-+dnl check for libusb
-+PKG_CHECK_MODULES(LIBUSB, libusb >= 0.1.11)
-+CFLAGS="$CFLAGS $LIBUSB_CFLAGS"
-+LIBS="$LIBS $LIBUSB_LIBS"
-
--if test $libusb_version -lt $libusb_version_needed; then
-- AC_MSG_RESULT(no)
-- AC_MSG_ERROR([*** libusb is too old ($libusb_version). You need a libusb installation newer or equal to 0.1.7.])
--else
-- AC_MSG_RESULT(yes)
--fi
-+dnl Check for recent pkg-config which supports Requires.private
-+case `$PKG_CONFIG --version` in
-+0.?|0.1[0-7]) PKGCONFIG_REQUIRES="Requires"; ;;
-+*) PKGCONFIG_REQUIRES="Requires.private"; ;;
-+esac
-+AC_SUBST(PKGCONFIG_REQUIRES)
-
- ENABLE_ASYNC_MODE=0
- AC_ARG_WITH(async-mode,