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rewrite fallthrough to HEIM_FALLTHROUGH to deal with new Apple SDKs

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Apple clang version 14.0.0 (clang-1400.0.17.3.1) fails the build
because stds.h defines `fallthrough` as a macro which is then
expanded when base.h evaluates

  # if __has_attribute(fallthrough) && __clang_major__ >= 5

The macOS SDK defines `DISPATCH_FALLTHROUGH` as the macro instead
of `fallthrough`.

This change replaces the use of `fallthrough` in the tree with
`HEIM_FALLTHROUGH` and updates the declaration in configure logic
to define `HEIM_FALLTHROUGH` based upon existing definitions
(if any) of `fallthrough` or `DISPATCH_FALLTHROUGH`.
This commit is contained in:
Daria Phoebe Brashear
2022-09-16 09:57:24 -04:00
committed by Jeffrey Altman
parent f6d26bce66
commit 133f517482
21 changed files with 48 additions and 44 deletions
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2
lib/asn1/gen_copy.c
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@@ -62,7 +62,7 @@ copy_type (const char *from, const char *to, const Type *t, int preserve)
copy_primitive ("heim_integer", from, to);
break;
}
fallthrough;
HEIM_FALLTHROUGH;
case TBoolean:
case TEnumerated :
fprintf(codefile, "*(%s) = *(%s);\n", to, from);