From: Glenn Morris <rgm@gnu.org>
Date: Fri, 2 Feb 2018 23:44:36 +0000 (-0500)
Subject: * autogen.sh: Add some temporary debug statements, for hydra.nixos.org.
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* autogen.sh: Add some temporary debug statements, for hydra.nixos.org.
---

diff --git a/autogen.sh b/autogen.sh
index acebc2381a3..3608b2a418c 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -137,6 +137,15 @@ if $do_autoconf; then
 
   if $do_check; then
 
+    if test -n "$NIX_STORE"; then
+       echo "DEBUG:"
+       ls -l /bin/sh
+       /bin/sh --version
+       type command
+       command -v ls
+       set -x
+    fi
+
     echo 'Checking whether you have the necessary tools...
 (Read INSTALL.REPO for more details on building Emacs)'