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tidy-up: delete, comment or scope C macros reported unused

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To reduce the number `-Wunused-macro` compiler warnings:
- delete unused macros.
- comment out unused macro that are part of a set.
- move macros into the scope they are used.

This may be useful to enable by default, but there are tricky cases that
I didn't manage to fix and paused the effort. E.g. internal features
checks in `openssl.c`. There is more, once those are fixed.

Closes #16279
This commit is contained in:
Viktor Szakats 2025-02-09 18:12:14 +01:00
parent edd013326d
commit 784a8ec2c1
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36 changed files with 86 additions and 131 deletions
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CMake/PickyWarnings.cmake
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@ -113,6 +113,7 @@ if(PICKY_COMPILER)
-Wtype-limits # clang 2.7 gcc 4.3
-Wunreachable-code # clang 2.7 gcc 4.1
# -Wunused-macros # clang 2.7 gcc 4.1 # Not practical
# -Wno-error=unused-macros # clang 2.7 gcc 4.1
-Wunused-parameter # clang 2.7 gcc 4.1
-Wvla # clang 2.8 gcc 4.3
)