From 43d2b6f2aa59a79a1f2d4e4638c7a8142a6a9773 Mon Sep 17 00:00:00 2001
From: =?utf8?q?J=C3=A1n=20Tomko?= <jtomko@redhat.com>
Date: Wed, 22 Jun 2016 22:27:43 +0200
Subject: [PATCH] prohibit-duplicate-header: print file name and line

This way :make syntax-check in ViM will point you at the offending line.
---
 build-aux/prohibit-duplicate-header.pl | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/build-aux/prohibit-duplicate-header.pl b/build-aux/prohibit-duplicate-header.pl
index f9ab3f58a6..f0539aeca5 100644
--- a/build-aux/prohibit-duplicate-header.pl
+++ b/build-aux/prohibit-duplicate-header.pl
@@ -5,17 +5,21 @@ use strict;
 my $file = " ";
 my $ret = 0;
 my %includes = ( );
+my $lineno = 0;
 
 while (<>) {
     if (not $file eq $ARGV) {
         %includes = ( );
         $file = $ARGV;
+        $lineno = 0;
     }
+    $lineno++;
     if (/^# *include *[<"]([^>"]*\.h)[">]/) {
         $includes{$1}++;
         if ($includes{$1} == 2) {
             $ret = 1;
-            print STDERR "$1 included multiple times in $ARGV\n";
+            print STDERR "$ARGV:$lineno: $_";
+            print STDERR "Do not include a header more than once per file\n";
         }
     }
 }
-- 
2.39.5