I was adding gcc printf attributes to more functions in obscure places,
and now I'm seeing this in pg_upgrade:
relfilenode.c:72:2: warning: zero-length gnu_printf format string
[-Wformat-zero-length]
So the options I can see are either adding the compiler option
-Wno-format-zero-length (with configure check and all), or hack up the
code to do something like this instead: Before:
prep_status("");
After:
prep_status("%s", "");
Comments?
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