Comment 6 for bug 1349386

this is the first patch I sent to the debian maintainer
From 8f2a7c8d8b017463390964c2f3f50a73f3b40359 Mon Sep 17 00:00:00 2001
From: Gianfranco Costamagna <email address hidden>
Date: Fri, 1 Aug 2014 10:42:25 +0200
Subject: [PATCH 1/2] Use --without-png configure flag, instead of the
 build-conflict

---
 debian/changelog | 5 +++++
 debian/control | 2 --
 debian/rules | 2 +-
 3 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/debian/changelog b/debian/changelog
index ab2e62d..91bf9f2 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,9 +1,14 @@
 libvncserver (0.9.9+dfsg-6) UNRELEASED; urgency=medium

+ [ Luca Falavigna ]
   * debian/control:
     - (Build-)depends on libgnutls28-dev and libgcrypt20-dev instead of
       libgnutls-dev and libgcrypt11-dev (Closes: #753126).

+ [ Gianfranco Costamagna ]
+ * Drop the libpng12-dev build conflict, relying instead on a better
+ --without-png configure flag
+
  -- Luca Falavigna <email address hidden> Tue, 01 Jul 2014 21:05:18 +0200

 libvncserver (0.9.9+dfsg-5) unstable; urgency=medium
diff --git a/debian/control b/debian/control
index ba38482..9331f47 100644
--- a/debian/control
+++ b/debian/control
@@ -9,8 +9,6 @@ Build-Depends: debhelper (>= 9),
                pkg-config,
                libgcrypt20-dev,
                zlib1g-dev
-Build-Conflicts: libpng12-0,
- libpng12-dev
 Standards-Version: 3.9.5
 Homepage: http://libvncserver.sourceforge.net
 Vcs-Git: git://anonscm.debian.org/collab-maint/libvncserver.git
diff --git a/debian/rules b/debian/rules
index 05d7707..dd16884 100755
--- a/debian/rules
+++ b/debian/rules
@@ -10,7 +10,7 @@ ifneq ($(DEB_HOST_ARCH_OS), linux)
 endif

 %:
- dh $@ $(EXTRA_DH_ARG) --with autoreconf
+ dh $@ $(EXTRA_DH_ARG) --with autoreconf --without-png

 override_dh_auto_configure:
  dh_auto_configure -- --disable-silent-rules
--
1.9.1