As per the discussion at https://github.com/mxcl/homebrew/pull/20831#discussion_r4917643
The required macro MAC_OS_X_VERSION_MAX_ALLOWED requires AvailabilityMacros.h to be defined. This diff is all that's required upstream, the rest is brew specific: diff --git a/src/os_unix.c b/src/os_unix.c index bb4c10e..00d9728 100644 --- a/src/os_unix.c +++ b/src/os_unix.c @@ -18,6 +18,10 @@ * changed beyond recognition. */ +#if defined(__APPLE__) +#include <AvailabilityMacros.h> +#endif + /* * Some systems have a prototype for select() that has (int *) instead of * (fd_set *), which is wrong. This define removes that prototype. We define -- -- You received this message from the "vim_mac" maillist. Do not top-post! Type your reply below the text you are replying to. For more information, visit http://www.vim.org/maillist.php --- You received this message because you are subscribed to the Google Groups "vim_mac" group. To unsubscribe from this group and stop receiving emails from it, send an email to vim_mac+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.