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From: Didier Raboud <odyx@debian.org>
Date: Sat, 1 Dec 2018 01:39:17 +0100
Subject: Mirror doc/developer/cleanwarnings.pl from upstream
Taken from upstream's master; it is needed to rebuild the doc PDFs from source
---
doc/developer/cleanwarnings.pl | 41 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
create mode 100644 doc/developer/cleanwarnings.pl
diff --git a/doc/developer/cleanwarnings.pl b/doc/developer/cleanwarnings.pl
new file mode 100644
index 0000000..42df778
--- /dev/null
+++ b/doc/developer/cleanwarnings.pl
@@ -0,0 +1,41 @@
+# -*- Mode: Perl -*-
+## Copyright (C) 2013 Robert Krawitz
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2, or (at your option)
+## any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+# Remove annoying TeX warnings from db2pdf.
+
+$nc="";
+while (<>) {
+ next if /^$/;
+ chomp;
+ LINE:
+ if (/^Overfull \\hbox|^LaTeX Font Warning:|^LaTeX Warning: Reference.*undefined on input line|^Package hyperref Warning:/) {
+ $nc=" ";
+ $_=<>;
+ $_=<>;
+ while (<>) {
+ if (! /^ *$/) {
+ chomp;
+ goto LINE;
+ }
+ }
+ } else {
+ print "${nc}$_";
+ $nc="\n";
+ }
+}
+if ($nc ne "") {
+ print "\n";
+}
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