From d1d3dc0235c1300c16cd2ad0438ea234f4090a42 Mon Sep 17 00:00:00 2001
From: Werner Lemberg <wl@gnu.org>
Date: Thu, 2 Sep 2021 22:12:07 -0700
Subject: [PATCH] autogen.sh: Make it work with old Solaris 10 shell.

---
 autogen.sh | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/autogen.sh b/autogen.sh
index 6503975d1..ee9257659 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -110,7 +110,10 @@ check_tool_version ()
   fi
 }
 
-if test ! -f ./builds/unix/configure.raw; then
+# Solaris 10's shell doesn't like the `!` operator to negate the exit status.
+if test -f ./builds/unix/configure.raw; then
+  :
+else
   echo "You must be in the same directory as \`autogen.sh'."
   echo "Bootstrapping doesn't work if srcdir != builddir."
   exit 1
@@ -182,7 +185,9 @@ copy_submodule_files ()
 DLG_INC_DIR=subprojects/dlg/include/dlg
 DLG_SRC_DIR=subprojects/dlg/src/dlg
 
-if ! test -d "$DLG_INC_DIR"; then
+if test -d "$DLG_INC_DIR"; then
+  :
+else
   echo "Checking out submodule in \`subprojects/dlg':"
   git submodule init
   git submodule update