From 93dc7ae4a419e444e1a0daa4686552fdab7f3357 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Thu, 30 Nov 2017 15:22:46 -0800
Subject: [PATCH] Port better to QNX
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Problem reported by Elad Lahav on emacs-devel.
* configure.ac: On QNX, default CC to qcc (a GCC wrapper),
and default LDFLAGS to -N2MB so that the initial stack size
is not too small.  Also, fix misspelling of ‘qnxnto’.
---
 configure.ac | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index f1ca7cc81b7..2df5679f1d5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -702,7 +702,9 @@ case "${canonical}" in
   ## QNX Neutrino
   *-nto-qnx* )
     opsys=qnxnto
+    test -z "$CC" && CC=qcc
     CFLAGS="$CFLAGS -D__NO_EXT_QNX"
+    LDFLAGS="-N2MB $LDFLAGS"
   ;;
 
   ## Intel 386 machines where we don't care about the manufacturer.
@@ -2218,7 +2220,7 @@ test "$CANNOT_DUMP" = yes ||
 case "$opsys" in
   ## darwin ld insists on the use of malloc routines in the System framework.
   darwin | mingw32 | nacl | sol2-10) ;;
-  cygwin | qnxto | freebsd)
+  cygwin | qnxnto | freebsd)
 	  hybrid_malloc=yes
           system_malloc= ;;
   *) test "$ac_cv_func_sbrk" = yes && system_malloc=$emacs_cv_sanitize_address;;
-- 
2.39.2