[LU-13209] SUSE 15 SP2 client build fix

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.14.0
• Severity: 3
• Assignee: Shaun Tancheff
• Reporter: Shaun Tancheff

Description

SUSE 15 SP2 kernel is based on 5.3.18

This linux kernel change v5.2-rc4-45-g051f278e9d81

KBUILD_SRC := $(abs_srctree)
   to
building_out_of_srctree := 1

breaks module building post configuration.

While embedded in autoMakefile.am is:

 .... $(if $$(KBUILD_SRC),-Iinclude2 -I$$(srctree)/include) ...
This should now be
 .... $(if $$(KBUILDSRC)$$(building_out_of_srctree),-Iinclude2 -I$$(srctree)/include) ...

To cover both pre and post 5.3 kernels.