<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><pre><blockquote type="cite"><font face="UICTFontTextStyleTallBody"><span style="white-space: normal; background-color: rgba(255, 255, 255, 0);"># define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS \
__attribute__((availability(macosx,strict,introduced=10.14))) \
__attribute__((availability(ios,strict,introduced=12.0))) \
__attribute__((availability(tvos,strict,introduced=12.0))) \
__attribute__((availability(watchos,strict,introduced=5.0)</span></font></blockquote></pre><pre><br></pre><pre>I went ahead and patched our installed __config header to change this to introduced 10.13.</pre><pre><br></pre><pre>Ken</pre><div></div></body></html>