PR109836 is a request to have -Wpointer-sign enabled by default. There were points of disagreement raised in the bug report, so I figured that maybe as a compromise, the warning could just be enabled by -Wextra, as well (I have in fact seen some projects that enable -Wextra but not -Wall). This patch would implement my suggestion of adding it to -Wextra, but it's not ready to commit yet, as it still needs testing, documentation, and a ChangeLog entry. I'm just posting it here as an RFC; what do people think?
patch-gcc_c-family_c.opt.diff
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