From bf01fbbf31a6a99e3eb60b70e05cd78d728421c7 Mon Sep 17 00:00:00 2001
From: Richard Levitte <levitte@openssl.org>
Date: Mon, 29 Jan 2018 23:17:43 +0100
Subject: [PATCH] Add a 'reconfigure' make target

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5197)
---
 Configurations/descrip.mms.tmpl      | 3 +++
 Configurations/unix-Makefile.tmpl    | 3 +++
 Configurations/windows-makefile.tmpl | 3 +++
 INSTALL                              | 5 +++++
 4 files changed, 14 insertions(+)

diff --git a/Configurations/descrip.mms.tmpl b/Configurations/descrip.mms.tmpl
index 8876d3c2d6..7d8b348687 100644
--- a/Configurations/descrip.mms.tmpl
+++ b/Configurations/descrip.mms.tmpl
@@ -553,6 +553,9 @@ configdata.pm : $(SRCDIR)Configure $(SRCDIR)config.com {- join(" ", @{$config{bu
         @ WRITE SYS$OUTPUT "*************************************************"
         @ PIPE ( EXIT %X10000000 )
 
+reconfigure reconf:
+	perl configdata.pm -r -v
+
 {-
   use File::Basename;
   use File::Spec::Functions qw/abs2rel rel2abs catfile catdir/;
diff --git a/Configurations/unix-Makefile.tmpl b/Configurations/unix-Makefile.tmpl
index 22e52634d1..3dd66b8baa 100644
--- a/Configurations/unix-Makefile.tmpl
+++ b/Configurations/unix-Makefile.tmpl
@@ -793,6 +793,9 @@ configdata.pm: $(SRCDIR)/Configure $(SRCDIR)/config {- join(" ", @{$config{build
 	@echo "**************************************************"
 	@false
 
+reconfigure reconf:
+	$(PERL) configdata.pm -r -v
+
 {-
   use File::Basename;
   use File::Spec::Functions qw/:DEFAULT abs2rel rel2abs/;
diff --git a/Configurations/windows-makefile.tmpl b/Configurations/windows-makefile.tmpl
index a14ab23ef9..b135502c52 100644
--- a/Configurations/windows-makefile.tmpl
+++ b/Configurations/windows-makefile.tmpl
@@ -378,6 +378,9 @@ configdata.pm: "$(SRCDIR)\Configure" {- join(" ", map { '"'.$_.'"' } @{$config{b
 	@echo "**************************************************"
 	@exit 1
 
+reconfigure reconf:
+	"$(PERL)" configdata.pm -r -v
+
 {-
  use File::Basename;
  use File::Spec::Functions qw/:DEFAULT abs2rel rel2abs/;
diff --git a/INSTALL b/INSTALL
index f8702e44a3..01b8056dd0 100644
--- a/INSTALL
+++ b/INSTALL
@@ -1039,6 +1039,11 @@
  uninstall
                 Uninstall all OpenSSL components.
 
+ reconfigure
+ reconf
+                Re-run the configuration process, as exactly as the last time
+                as possible.
+
  update
                 This is a developer option. If you are developing a patch for
                 OpenSSL you may need to use this if you want to update
-- 
2.25.1