[Pkg-dkms-maint] Bug#840620: [patch] dkms: need more verbose error message

[Maksym Komar]

Package: dkms
Version: 2.2.1.0+git20160527-1
Severity: minor

Dear Maintainer,

    when dkms used to rebuild modules during package installation, it's
    not clear which module do not build if it masked by BUILD_EXCLUSIVE:
    
    For example:
======
Selecting previously unselected package linux-headers-4.8.1-radeon+.
(Reading database ... 375396 files and directories currently installed.)
Preparing to unpack linux-headers-4.8.1-radeon+_4.8.1-radeon+-10.00.Custom_amd64.deb ...
Unpacking linux-headers-4.8.1-radeon+ (4.8.1-radeon+-10.00.Custom) ...
Setting up linux-headers-4.8.1-radeon+ (4.8.1-radeon+-10.00.Custom) ...
Examining /etc/kernel/header_postinst.d.
run-parts: executing /etc/kernel/header_postinst.d/dkms 4.8.1-radeon+ /boot/vmlinuz-4.8.1-radeon+
Error!  The dkms.conf for this module includes a BUILD_EXCLUSIVE directive which
does not match this kernel/arch.  This indicates that it should not be built.
======

    There is not clear which module fail.

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

Kernel: Linux 4.8.1-radeon+ (SMP w/8 CPU cores)
Locale: LANG=ru_RU.UTF-8, LC_CTYPE=ru_RU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Init: systemd (via /run/systemd/system)

Versions of packages dkms depends on:
ii  build-essential  12.2
ii  coreutils        8.25-2
ii  dpkg-dev         1.18.10
ii  gcc              4:6.1.1-1
ii  kmod             22-1.1
ii  make             4.1-9
ii  patch            2.7.5-1

Versions of packages dkms recommends:
ii  fakeroot                                   1.21-2
ii  linux-headers-3.18.3 [linux-headers]       3.18.3-10.00.Custom
ii  linux-headers-4.6.0-komar+ [linux-headers  4.6.0-komar+-10.00.Custom
ii  linux-headers-4.6.0-radeon-debug+ [linux-  4.6.0-radeon-debug+-10.00.Custom
ii  linux-headers-4.6.4-radeon+ [linux-header  4.6.4-radeon+-10.00.Custom
ii  linux-headers-4.8.1-radeon+ [linux-header  4.8.1-radeon+-10.00.Custom
ii  menu                                       2.1.47
ii  sudo                                       1.8.17p1-2

Versions of packages dkms suggests:
ii  python3-apport  2.19.3-1

-- no debconf information
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