PR d/87799 Fix D build on windows hosts

PR d/87799
* d-system.h (_mkdir): Forward _mkdir on MinGW to mkdir in system.h.
* configure.ac: Remove d from unsupported languages on mingw and cygwin.
* configure: Regenerate.

From-SVN: r270349

1 files changed, 1 insertions, 1 deletions

diff --git a/configure b/configure
index 1bb0a13..abd93a9 100755
--- a/configure
+++ b/configure
@@ -3396,7 +3396,7 @@ case ,${enable_languages}, in
     ;;
   *)
     case "${target}" in
-      *-*-darwin* | *-*-cygwin* | *-*-mingw*)
+      *-*-darwin*)
 	unsupported_languages="$unsupported_languages d"
 	;;
     esac