From da9d788a9059ee88240cbbcc5096abc553b1cf1f Mon Sep 17 00:00:00 2001
From: "P. J. McDermott" <pjm@nac.net>
Date: Sun, 22 Sep 2013 17:13:25 -0400
Subject: [PATCH] Set SCRIPT_FILENAME.

---
 src/ssic.pl | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/ssic.pl b/src/ssic.pl
index c12ff21..d678556 100644
--- a/src/ssic.pl
+++ b/src/ssic.pl
@@ -105,6 +105,7 @@ sub compile
 {
 	my ($input, $output, $vars, $root) = @_;
 	my $input_fh;
+	my $input_abs;
 	my $output_fh;
 	my $ssi;
 	my $var_name;
@@ -116,10 +117,12 @@ sub compile
 
 	if ($input eq "-") {
 		$input_fh = *STDIN;
+		$input_abs = File::Spec->rel2abs(".");
 	} else {
 		if (not open($input_fh, "<", $input)) {
 			error(4, "%s: %s\n", $input, $!);
 		}
+		$input_abs = File::Spec->rel2abs($input);
 	}
 	if ($output eq "-") {
 		$output_fh = *STDOUT;
@@ -129,10 +132,12 @@ sub compile
 		}
 	}
 
+	# CGI::SSI uses SCRIPT_FILENAME to determine the value of LAST_MODIFIED.
 	%ENV = (
 		"DOCUMENT_NAME" => $input,
 		"DOCUMENT_URI" => $input,
 		"DOCUMENT_ROOT" => $root,
+		"SCRIPT_FILENAME" => $input_abs,
 	);
 
 	$CGI::SSI::DEBUG = 0;
-- 
2.31.1