+
+ AC_CHECK_LIB([acl], [acl_init], [:], AC_MSG_ERROR([libacl not found]))
+ AC_CHECK_HEADER([acl/libacl.h], [:], AC_MSG_ERROR([libacl header not found]))
+
+ PKG_CHECK_MODULES(LIBUSB, libusb >= 0.1.12)
+ AC_SUBST(LIBUSB_CFLAGS)
+ AC_SUBST(LIBUSB_LIBS)
+
+ PKG_CHECK_MODULES(USBUTILS, usbutils >= 0.82)
+ AC_SUBST([USB_DATABASE], [$($PKG_CONFIG --variable=usbids usbutils)])
+
+ if test "x$cross_compiling" = "xno" ; then
+ AC_CHECK_FILES([/usr/share/pci.ids], [pciids=/usr/share/pci.ids])
+ AC_CHECK_FILES([/usr/share/hwdata/pci.ids], [pciids=/usr/share/hwdata/pci.ids])
+ AC_CHECK_FILES([/usr/share/misc/pci.ids], [pciids=/usr/share/misc/pci.ids])
+ fi
+ AC_ARG_WITH(pci-ids-path,
+ [AS_HELP_STRING([--with-pci-ids-path=DIR], [Path to pci.ids file])],
+ [PCI_DATABASE=${withval}],
+ [if test -n "$pciids" ; then
+ PCI_DATABASE="$pciids"
+ else
+ AC_MSG_ERROR([pci.ids not found, try --with-pci-ids-path=])
+ fi])
+ AC_MSG_CHECKING([for PCI database location])
+ AC_MSG_RESULT([$PCI_DATABASE])
+ AC_SUBST(PCI_DATABASE)
+
+ AC_CHECK_HEADER([linux/input.h], [:], AC_MSG_ERROR([kernel headers not found]))
+ AC_SUBST([INCLUDE_PREFIX], [$(echo '#include <linux/input.h>' | eval $ac_cpp -E - | sed -n '/linux\/input.h/ {s:.*"\(.*\)/linux/input.h".*:\1:; p; q}')])