- cmake: enable Apple-specific `-Werror=partial-availability` to match
autotools.
- autotools: enable `-pedantic-errors` with llvm/clang to match gcc and
CMake.
- autotools: enable `-Werror-implicit-function-declaration` for
llvm/clang to match gcc.
- cmake: enable `-Werror-implicit-function-declaration` to match
autotools.
- move `-Wpointer-bool-conversion` from autotools to the local file
(`sectransp.c`) it was meant to apply. This way it applies to all
build methods.
- autotoos: show `CURL_CFLAG_EXTRAS` in the `./configure` summary.
(it may contain `-Werror` and/or `-pedentic-errors`.)
Cherry-picked from #14097Closes#14128
59cadacfcc