linux-azure-edge headers are broken after change to support scripted rebases

[Marcelo Cerri]

Starting with linux-azure-edge 4.15.0-1006.6~16.04.1, the kernel headers are not properly installed what causes DKMS package installations to fail.

Example:

DKMS make.log for flashcache-3.1.3+git20150701 for kernel 4.15.0-1006-azure (x86_64)
Fri May 18 04:33:44 UTC 2018
make -C /lib/modules/4.15.0-1006-azure/build M=/var/lib/dkms/flashcache/3.1.3+git20150701/build modules V=0
make[1]: Entering directory '/usr/src/linux-headers-4.15.0-1006-azure'
make[1]: Makefile: No such file or directory
make[1]: *** No rule to make target 'Makefile'. Stop.
make[1]: Leaving directory '/usr/src/linux-headers-4.15.0-1006-azure'
Makefile:35: recipe for target 'modules' failed
make: *** [modules] Error 2

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-azure-edge - 4.15.0-1012.12~16.04.2

---------------
linux-azure-edge (4.15.0-1012.12~16.04.2) xenial; urgency=medium

  * linux-azure-edge headers are broken after change to support scripted
    rebases (LP: #1772058)
    - [Packaging]: azure-edge: Fix headers packages after switching to scripted
      rebase

linux-azure-edge (4.15.0-1012.12~16.04.1) xenial; urgency=medium

  * linux-image-4.15.0-20-generic install after upgrade from xenial breaks
    (LP: #1767133)
    - Packaging: Add versioned dependency for linux-base

  [ Ubuntu: 4.15.0-22.24 ]

  * CVE-2018-3639 (powerpc)
    - powerpc/64s: Add support for a store forwarding barrier at kernel entry/exit
    - stf-barrier: set eieio instruction bit 6 for future optimisations
  * CVE-2018-3639 (x86)
    - x86/nospec: Simplify alternative_msr_write()
    - x86/bugs: Concentrate bug detection into a separate function
    - x86/bugs: Concentrate bug reporting into a separate function
    - x86/bugs: Read SPEC_CTRL MSR during boot and re-use reserved bits
    - x86/bugs, KVM: Support the combination of guest and host IBRS
    - x86/bugs: Expose /sys/../spec_store_bypass
    - x86/cpufeatures: Add X86_FEATURE_RDS
    - x86/bugs: Provide boot parameters for the spec_store_bypass_disable
      mitigation
    - x86/bugs/intel: Set proper CPU features and setup RDS
    - x86/bugs: Whitelist allowed SPEC_CTRL MSR values
    - x86/bugs/AMD: Add support to disable RDS on Fam[15,16,17]h if requested
    - x86/KVM/VMX: Expose SPEC_CTRL Bit(2) to the guest
    - x86/speculation: Create spec-ctrl.h to avoid include hell
    - prctl: Add speculation control prctls
    - x86/process: Allow runtime control of Speculative Store Bypass
    - x86/speculation: Add prctl for Speculative Store Bypass mitigation
    - nospec: Allow getting/setting on non-current task
    - proc: Provide details on speculation flaw mitigations
    - seccomp: Enable speculation flaw mitigations
    - x86/bugs: Make boot modes __ro_after_init
    - prctl: Add force disable speculation
    - seccomp: Use PR_SPEC_FORCE_DISABLE
    - seccomp: Add filter flag to opt-out of SSB mitigation
    - seccomp: Move speculation migitation control to arch code
    - x86/speculation: Make "seccomp" the default mode for Speculative Store
      Bypass
    - x86/bugs: Rename _RDS to _SSBD
    - proc: Use underscores for SSBD in 'status'
    - Documentation/spec_ctrl: Do some minor cleanups
    - x86/bugs: Fix __ssb_select_mitigation() return type
    - x86/bugs: Make cpu_show_common() static
  * LSM Stacking prctl values should be redefined as to not collide with
    upstream prctls (LP: #1769263) // CVE-2018-3639
    - SAUCE: LSM stacking: adjust prctl values

  [ Ubuntu: 4.15.0-21.22 ]

  * linux: 4.15.0-21.22 -proposed tracker (LP: #1767397)
  * initramfs-tools exception during pm.DoInstall with do-release-upgrade from
    16.04 to 18.04 (LP: #1766727)
    - Add linux-image-* Breaks on s390-tools (<< 2.3.0-0ubuntu3)
  * linux-image-4.15.0-20-generic install after upgrade from xenial breaks
    (LP: #1767133)
    - Packaging: Depends on linux-base that provides the necessary tools
  * linux-image packages ...