From 1faff39592680be6155acd2833afe1f5e72d087a Mon Sep 17 00:00:00 2001
From: Paolo Giannozzi <p.giannozzi@gmail.com>
Date: Mon, 24 Apr 2023 12:28:51 +0200
Subject: [PATCH] [skip-CI] As suggested, configure option
 "--enable-exit-status"

---
 install/aclocal.m4           |  4 ++--
 install/configure            | 23 +++++++++++++++++++++++
 install/configure.ac         |  3 +++
 install/m4/x_ac_qe_signal.m4 | 18 ++++++++++++++++++
 4 files changed, 46 insertions(+), 2 deletions(-)

diff --git a/install/aclocal.m4 b/install/aclocal.m4
index ba05af402..fd6169598 100644
--- a/install/aclocal.m4
+++ b/install/aclocal.m4
@@ -1,6 +1,6 @@
-# generated automatically by aclocal 1.16.3 -*- Autoconf -*-
+# generated automatically by aclocal 1.15.1 -*- Autoconf -*-
 
-# Copyright (C) 1996-2020 Free Software Foundation, Inc.
+# Copyright (C) 1996-2017 Free Software Foundation, Inc.
 
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
diff --git a/install/configure b/install/configure
index 66cb43887..4f93c02cb 100755
--- a/install/configure
+++ b/install/configure
@@ -786,6 +786,7 @@ with_hdf5_include
 with_environ
 enable_legacy_plugins
 enable_signals
+enable_exit_status
 '
       ac_precious_vars='build_alias
 host_alias
@@ -1433,6 +1434,7 @@ Optional Features:
   --enable-nvtx           Enable compilation for NVTX [default=no]
  --enable-legacy_plugins    Enables use of legacy plugins in PW and CP.
   --enable-signals        enable signal trapping (default: no)
+  --enable-exit-status    enable Unix status on exit (default: no)
 
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
@@ -7332,6 +7334,27 @@ fi
 
 
 
+# Checking STATUS...
+
+
+   # Check whether --enable-exit-status was given.
+if test "${enable_exit_status+set}" = set; then :
+  enableval=$enable_exit_status; if   test "$enableval" = "yes" ; then
+        use_status=1
+     else
+        use_status=0
+     fi
+else
+  use_status=0
+fi
+
+
+  # preprocessing flag for returning Unix status on exit (experimental)
+  if test "$use_status" -eq 1 ; then try_dflags="$try_dflags -D__RETURN_EXIT_STATUS" ; fi
+
+
+
+
 # Checking for ranlib...
 
 
diff --git a/install/configure.ac b/install/configure.ac
index ed4ebe96b..d6ae17d7c 100644
--- a/install/configure.ac
+++ b/install/configure.ac
@@ -101,6 +101,9 @@ X_AC_QE_PLUGINS()
 # Checking SIGNAL...
 X_AC_QE_SIGNAL()
 
+# Checking STATUS...
+X_AC_QE_STATUS()
+
 # Checking for ranlib...
 X_AC_QE_RANLIB()
 
diff --git a/install/m4/x_ac_qe_signal.m4 b/install/m4/x_ac_qe_signal.m4
index 67a1f2105..1ba3d9003 100644
--- a/install/m4/x_ac_qe_signal.m4
+++ b/install/m4/x_ac_qe_signal.m4
@@ -17,3 +17,21 @@ AC_DEFUN([X_AC_QE_SIGNAL], [
   
   ]
 )
+
+AC_DEFUN([X_AC_QE_STATUS], [
+
+   AC_ARG_ENABLE(exit-status,
+     [AS_HELP_STRING([--enable-exit-status],
+         [enable Unix status on exit (default: no)])],
+     [if   test "$enableval" = "yes" ; then
+        use_status=1
+     else
+        use_status=0
+     fi],
+     [use_status=0])
+   
+  # preprocessing flag for returning Unix status on exit (experimental)
+  if test "$use_status" -eq 1 ; then try_dflags="$try_dflags -D__RETURN_EXIT_STATUS" ; fi
+  
+  ]
+)