GCC 5.0, with its new -Wformat-signedness, warns about the sign being different between a type and the format string in printf-format messages, and udisks enables -Wformat=2 as part of its default warnings (which eventually causes the build to fail).
Created attachment 113331 [details] [review] proposed patch This fixes the build for me. Sometimes it was sufficient to change the format string, but sometimes a cast was necessary.
Very nice, thank you! Applied.
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