From 7299a38ef7a6eced22b9506e0f68416fdb06986b Mon Sep 17 00:00:00 2001
From: Ken Brown <kbrown@cornell.edu>
Date: Fri, 8 Oct 2021 14:29:08 -0400
Subject: [PATCH] Drop support for native compilation on 32-bit Cygwin

* configure.ac [i686-pc-cygwin]: Don't allow native compilation
unless ENABLE_NATIVE=yes.  (Bug#50666)
---
 configure.ac | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/configure.ac b/configure.ac
index e6ffea0637..0ddf917de2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3814,6 +3814,13 @@ AC_DEFUN
 HAVE_NATIVE_COMP=no
 LIBGCCJIT_LIBS=
 LIBGCCJIT_CFLAGS=
+if test "$canonical" = i686-pc-cygwin && \
+  test "${with_native_compilation}" != no && \
+  test "x${NATIVE_ENABLED}" != xyes; then
+    AC_MSG_ERROR([Native compilation is not supported on 32-bit Cygwin.
+If you want to try it anyway, reconfigure with NATIVE_ENABLED=yes.])
+fi
+
 if test "${with_native_compilation}" != "no"; then
     if test "${HAVE_PDUMPER}" = no; then
        AC_MSG_ERROR(['--with-native-compilation' requires '--with-dumping=pdumper'])
-- 
2.33.0