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[Guru Prasath <guru98@xxxxxxxx>]

I added a extra [KBUILD_CFLAGS += -fno-pic] in the [/usr/src/linux-
headers-4.4.0-21-generic/arch/x86/Makefile] which seemed to make the
package compile. But still don't know of any side consequences.

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https://bugs.launchpad.net/bugs/1578455

Title:
  bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu8: bcmwl kernel module
  failed to build [code model kernel does not support PIC mode]

Status in bcmwl package in Ubuntu:
  New

Bug description:
  DKMS make.log for bcmwl-6.30.223.248+bdcom for kernel 4.4.0-21-generic (x86_64)
  Thu May  5 06:57:03 IST 2016
  make: Entering directory '/usr/src/linux-headers-4.4.0-21-generic'
  arch/x86/Makefile:133: stack-protector enabled but compiler support broken
  Makefile:670: Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: -fstack-protector-strong not supported by compiler
  CFG80211 API is prefered for this kernel version
  Using CFG80211 API
    LD      /var/lib/dkms/bcmwl/6.30.223.248+bdcom/build/built-in.o
    CC [M]  /var/lib/dkms/bcmwl/6.30.223.248+bdcom/build/src/shared/linux_osl.o
  /var/lib/dkms/bcmwl/6.30.223.248+bdcom/build/src/shared/linux_osl.c:1:0: error:  code model kernel does not support PIC mode
   /*
   ^
  scripts/Makefile.build:258: recipe for target '/var/lib/dkms/bcmwl/6.30.223.248+bdcom/build/src/shared/linux_osl.o' failed
  make[1]: *** [/var/lib/dkms/bcmwl/6.30.223.248+bdcom/build/src/shared/linux_osl.o] Error 1
  Makefile:1396: recipe for target '_module_/var/lib/dkms/bcmwl/6.30.223.248+bdcom/build' failed
  make: *** [_module_/var/lib/dkms/bcmwl/6.30.223.248+bdcom/build] Error 2

  This problem persists with the new linux kernel version 4.4.0.21

  ProblemType: Package
  DistroRelease: Ubuntu 16.10
  Package: bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu8
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
  Uname: Linux 4.4.0-21-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  DKMSKernelVersion: 4.4.0-21-generic
  Date: Thu May  5 06:57:07 2016
  DuplicateSignature: dkms:bcmwl-kernel-source:6.30.223.248+bdcom-0ubuntu8:/var/lib/dkms/bcmwl/6.30.223.248+bdcom/build/src/shared/linux_osl.c:1:0: error: code model kernel does not support PIC mode
  InstallationDate: Installed on 2016-05-04 (0 days ago)
  InstallationMedia: Ubuntu-GNOME 16.10 "Yakkety Yak" - Alpha amd64 (20160426)
  PackageVersion: 6.30.223.248+bdcom-0ubuntu8
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu2
   apt  1.2.11
  SourcePackage: bcmwl
  Title: bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu8: bcmwl kernel module failed to build
  UpgradeStatus: No upgrade log present (probably fresh install)

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