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@@ -195,8 +195,9 @@ PKG_CHECK_MODULES([LIBUSB], [libusb-1.0],[
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if test "x$libusb" = xyes; then
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AC_CHECK_DECL([libusb_init],[
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],[
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+ AC_PROG_CPP
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AC_MSG_CHECKING([whether libusb_init is declared in subdirectory])
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- libusb_include_path=`echo '#include <libusb-1.0/libusb.h>' | cpp -M 2>/dev/null | sed 's/^[^[:space:]]\+[[:space:]]\+\([^[:space:]]\+\)\/.*$/\1/;t;d'`
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+ libusb_include_path=`echo '#include <libusb-1.0/libusb.h>' | ${CPP} -M - 2>/dev/null | sed 's/^[^[:space:]]\+[[:space:]]\+\([^[:space:]]\+\)\/.*$/\1/;t;d'`
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if test "x$libusb_include_path" != "x"; then
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USB_LIBS="-l$usb_lib"
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USB_CFLAGS="-I$libusb_include_path"
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Luke Dashjr