Support defining C99 bool as the BOOL type #322
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davidchisnall
approved these changes
Dec 18, 2024
Whether to use C99 bool can be set at build time using -DOBJC_BOOL_IS_BOOL_MODE=auto/always/never. Default is to use C99 bool if __OBJC_BOOL_IS_BOOL is defined and set to 1, which is currently the case for Clang on newer Apple platforms. This matches the behavior of Apple's libobjc (especially when combined with STRICT_APPLE_COMPATIBILITY). (See https://www.jviotti.com/2024/01/05/is-objective-c-bool-a-boolean-type-it-depends.html for more information about the __OBJC_BOOL_IS_BOOL definition.)
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Whether to use C99 bool can be set at build time using
-DOBJC_BOOL_IS_BOOL_MODE=auto/always/never.
Default is to use C99 bool if __OBJC_BOOL_IS_BOOL is defined and
set to 1, which is currently the case for Clang on newer Apple
platforms. This matches the behavior of Apple's libobjc (especially
when combined with STRICT_APPLE_COMPATIBILITY).
(See
https://www.jviotti.com/2024/01/05/is-objective-c-bool-a-boolean-type-it-depends.html
for more information about the __OBJC_BOOL_IS_BOOL definition.)
Note turning this on with GNUstep currently breaks Gorm files written with a different BOOL type just like gnustep/libs-gui#318. Potentially needs this gnustep/libs-gui#318 (comment) to be usable.