Allow reconfiguration. This can be useful if some source update

requires that you configure again, but you don't want to reenter all
those configuration arguments again.

Configure

@@ -429,16 +429,37 @@ $perl=$ENV{'PERL'} or $perl=&which("perl5") or $perl=&which("perl")
 
 &usage if ($#ARGV < 0);
 
-my $flags="";
-my $depflags="";
-my $openssl_algorithm_defines="";
-my $openssl_thread_defines="";
-my $openssl_other_defines="";
-my $libs="";
-my $target="";
-my $options="";
-my $symlink=1;
-foreach (@ARGV)
+my $flags;
+my $depflags;
+my $openssl_algorithm_defines;
+my $openssl_thread_defines;
+my $openssl_other_defines;
+my $libs;
+my $target;
+my $options;
+my $symlink;
+
+my @argvcopy=@ARGV;
+my $argvstring="";
+my $argv_unprocessed=1;
+
+while($argv_unprocessed)
+	{
+	$flags="";
+	$depflags="";
+	$openssl_algorithm_defines="";
+	$openssl_thread_defines="";
+	$openssl_other_defines="";
+	$libs="";
+	$target="";
+	$options="";
+	$symlink=1;
+
+	$argv_unprocessed=0;
+	$argvstring=join(' ',@argvcopy);
+
+PROCESS_ARGS:
+	foreach (@argvcopy)
 		{
 		s /^-no-/no-/; # some people just can't read the instructions
 		if (/^no-asm$/)
@@ -476,6 +497,29 @@ foreach (@ARGV)
 				$openssl_algorithm_defines .= "#define NO_MDC2\n";
 				}
 			}
+		elsif (/^reconfigure/ || /^reconf/)
+			{
+			if (open(IN,"<$Makefile"))
+				{
+				while (<IN>)
+					{
+					chop;
+					if (/^CONFIGURE_ARGS=(.*)/)
+						{
+						$argvstring=$1;
+						@argvcopy=split(' ',$argvstring);
+						die "Incorrect data to reconfigure, please do a normal configuration\n"
+							if (grep(/^reconf/,@argvcopy));
+						print "Reconfiguring with: $argvstring\n";
+						$argv_unprocessed=1;
+						close(IN);
+						last PROCESS_ARGS;
+						}
+					}
+				close(IN);
+				}
+			die "Insufficient data to reconfigure, please do a normal configuration\n";
+			}
 		elsif (/^386$/)
 			{ $processor=386; }
 		elsif (/^rsaref$/)
@@ -530,6 +574,7 @@ foreach (@ARGV)
 			}
 		}
 	}
+}
 
 if ($target eq "TABLE") {
 	foreach $target (sort keys %table) {
@@ -546,6 +591,8 @@ if ($target eq "LIST") {
 	exit 0;
 }
 
+print "Configuring for $target\n";
+
 &usage if (!defined($table{$target}));
 
 my $IsWindows=scalar grep /^$target$/,@WinTargets;
@@ -736,6 +783,7 @@ while (<IN>)
 	s/^INSTALL_PREFIX=.*$/INSTALL_PREFIX=$install_prefix/;
 	s/^PLATFORM=.*$/PLATFORM=$target/;
 	s/^OPTIONS=.*$/OPTIONS=$options/;
+	s/^CONFIGURE_ARGS=.*$/CONFIGURE_ARGS=$argvstring/;
 	s/^CC=.*$/CC= $cc/;
 	s/^CFLAG=.*$/CFLAG= $cflags/;
 	s/^DEPFLAG=.*$/DEPFLAG= $depflags/;

Makefile.org

@@ -11,6 +11,7 @@ SHLIB_MAJOR=
 SHLIB_MINOR=
 PLATFORM=dist
 OPTIONS=
+CONFIGURE_ARGS=
 SHLIB_TARGET=
 
 # INSTALL_PREFIX is for package builders so that they can configure

config

@@ -559,7 +559,7 @@ OUT="$PREFIX$OUT"
 
 $PERL ./Configure LIST | grep "$OUT" > /dev/null
 if [ $? = "0" ]; then
-  echo Configuring for $OUT
+  #echo Configuring for $OUT
 
   if [ "$TEST" = "true" ]; then
     echo $PERL ./Configure $OUT $options