Bug#893433: libegl1-mesa-dev: File conflicts with libwayland-dev:amd64 1.14.91-1

[Lisandro Damián Nicanor Pérez Meyer <lisandro@debian.org>]

Package: libegl1-mesa-dev
Version: 18.0.0~rc4-1
Severity: serious
Justification: File conflicts

Hi! While trying to build qtwayland I ran across:

dpkg: error processing archive /tmp/apt-dpkg-install-VBKAMl/062-libegl1-mesa-dev_18.0.0~rc4-1_amd64.deb (--unpack):
trying to overwrite '/usr/lib/x86_64-linux-gnu/pkgconfig/wayland-egl.pc', which is also in package libwayland-dev:amd64 1.14.91-1

Admitedly I'm using a build against experimental using aspcud as dep resolver, as I need to build Qt in experimental, so maybe this is related.

Thanks, Lisandro.

-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (990, 'unstable'), (500, 'unstable-debug'), (500, 'testing-debug'), (500, 'buildd-unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental-debug'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.15.0-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=es_AR.UTF-8, LC_CTYPE=es_AR.UTF-8 (charmap=UTF-8), LANGUAGE=es_AR:es (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libegl1-mesa-dev depends on:
ii  libdrm-dev            2.4.91-1
ii  libglvnd-dev          1.0.0-2
pn  libwayland-dev        <none>
ii  libwayland-egl1-mesa  17.3.6-1
ii  libx11-dev            2:1.6.4-3
ii  libx11-xcb-dev        2:1.6.4-3
ii  libxcb-dri2-0-dev     1.13-1
ii  libxcb-dri3-dev       1.13-1
ii  libxcb-glx0-dev       1.13-1
ii  libxcb-present-dev    1.13-1
ii  libxcb-sync-dev       1.13-1
ii  libxdamage-dev        1:1.1.4-3
ii  libxext-dev           2:1.3.3-1+b2
ii  libxfixes-dev         1:5.0.3-1
ii  libxshmfence-dev      1.2-1+b2
ii  libxxf86vm-dev        1:1.1.4-1+b2
ii  x11proto-dri2-dev     2.8-2
ii  x11proto-gl-dev       1.4.17-1

libegl1-mesa-dev recommends no packages.

libegl1-mesa-dev suggests no packages.