SyntaxAttrAlternate

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alternate (attribute)

The alternate attribute allows a check to test with different compiler flags, link flags and headers.

alternate { <attribute-statements> }

The alternate attribute is used with a check statement.

Repeatable: yes

Examples

check_function statfs {
  alternate {
    # linux
    name _header_sys_vfs;
    header sys/vfs.h;
  }
  alternate {
    # macos, freebsd
    name _header_sys_mount;
    header sys/mount.h;
  }
}

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