On 2014-09-30, 4:57 PM, nitin.a.kam...@intel.com wrote:
From: Nitin A Kamble <nitin.a.kam...@intel.com>

To build external modules, the link /lib/modules/<kernel-version>/build
must exist, and point to the proper kernel source area.

The kernel-dev package already provides the needed source files. Now
putting a link in place to unblock the external module building.

This description is not entirely accurate, at least from my point of
view.

You can build external modules on the target without this link .. it is
that many scripts and utilities look in this location for the kernel
source.

We are fixing that case, not the general case of building an external
module.

Cheers,

Bruce


Fixes Bug:
[YOCTO #2968]

Signed-off-by: Nitin A Kamble <nitin.a.kam...@intel.com>
---
  meta/classes/kernel.bbclass | 3 ++-
  1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index 78b33ce..5ac4ff4 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -213,6 +213,7 @@ kernel_do_install() {
        #
        kerneldir=${D}${KERNEL_SRC_PATH}
        install -d $kerneldir
+       ln -sf ${KERNEL_SRC_PATH} "${D}/lib/modules/${KERNEL_VERSION}/build"

        #
        # Store the kernel version in sysroots for module-base.bbclass
@@ -346,7 +347,7 @@ PACKAGES = "kernel kernel-base kernel-vmlinux kernel-image 
kernel-dev kernel-mod
  FILES_${PN} = ""
  FILES_kernel-base = "/lib/modules/${KERNEL_VERSION}/modules.order 
/lib/modules/${KERNEL_VERSION}/modules.builtin"
  FILES_kernel-image = "/boot/${KERNEL_IMAGETYPE}*"
-FILES_kernel-dev = "/boot/System.map* /boot/Module.symvers* /boot/config* 
${KERNEL_SRC_PATH}"
+FILES_kernel-dev = "/boot/System.map* /boot/Module.symvers* /boot/config* 
${KERNEL_SRC_PATH} /lib/modules/${KERNEL_VERSION}/build"
  FILES_kernel-vmlinux = "/boot/vmlinux*"
  FILES_kernel-modules = ""
  RDEPENDS_kernel = "kernel-base"


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