rewrite fallthrough to HEIM_FALLTHROUGH to deal with new Apple SDKs

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

View File

@@ -148,7 +148,7 @@ int teardown_test(void)
strcmp(dirname + len + 1 - sizeof(TESTDIR)/sizeof(char), TESTDIR) == 0) {
fallthrough;
HEIM_FALLTHROUGH;
} else {
/* did we create the directory? */
@@ -162,7 +162,7 @@ int teardown_test(void)
fprintf(stderr, "Can't change to test directory. Aborting cleanup.\n");
return -1;
} else {
fallthrough;
HEIM_FALLTHROUGH;
}
} else {
return -1;