add some triple for minix, patch by Kees van Reeuwijk from PR7582


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107785 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/raw_ostream.cpp b/lib/Support/raw_ostream.cpp
index bb72dfb..8054ae6 100644
--- a/lib/Support/raw_ostream.cpp
+++ b/lib/Support/raw_ostream.cpp
@@ -481,7 +481,7 @@
 }
 
 size_t raw_fd_ostream::preferred_buffer_size() const {
-#if !defined(_MSC_VER) && !defined(__MINGW32__) && !defined(_MINIX)
+#if !defined(_MSC_VER) && !defined(__MINGW32__) && !defined(__minix)
   // Windows and Minix have no st_blksize.
   assert(FD >= 0 && "File not yet open!");
   struct stat statbuf;