compilation problem with -Werror=implicit-function-declaration

[limbo127]

hello,
when i'm trying to comile KVMGT-kernel, i see an error :
KVMGT>make
make[1]: Nothing to be done for all'. make[1]: Nothing to be done forrelocs'.
CHK include/config/kernel.release
CHK include/generated/uapi/linux/version.h
CHK include/generated/utsrelease.h
CALL scripts/checksyscalls.sh
CHK include/generated/compile.h
make[3]: `arch/x86/realmode/rm/realmode.bin' is up to date.
CC drivers/gpu/drm/i915/i915_irq.o
drivers/gpu/drm/i915/i915_irq.c: In function ‘vgt_irq_uninstall’:
drivers/gpu/drm/i915/i915_irq.c:3875:2: error: implicit declaration of
function ‘vgt_uninstall_irq’ [-Werror=implicit-function-declaration]
drivers/gpu/drm/i915/i915_irq.c: In function ‘intel_irq_init’:
drivers/gpu/drm/i915/i915_irq.c:3968:30: error: ‘vgt_interrupt’
undeclared (first use in this function)
drivers/gpu/drm/i915/i915_irq.c:3968:30: note: each undeclared
identifier is reported only once for each function it appears in
drivers/gpu/drm/i915/i915_irq.c:3969:3: error: implicit declaration of
function ‘vgt_install_irq’ [-Werror=implicit-function-declaration]
drivers/gpu/drm/i915/i915_irq.c:3969:17: warning: assignment makes
pointer from integer without a cast [enabled by default]
drivers/gpu/drm/i915/i915_irq.c:3975:38: error: ‘i915_isr_wrapper’
undeclared (first use in this function)
cc1: some warnings being treated as errors
make[4]: *** [drivers/gpu/drm/i915/i915_irq.o] Error 1
make[3]: *** [drivers/gpu/drm/i915] Error 2
make[2]: *** [drivers/gpu/drm] Error 2
make[1]: *** [drivers/gpu] Error 2
make: *** [drivers] Error 2

[l1viathan]

Did you have CONFIG_KVMGT enabled in .config? Please also have a try with config-3.14.1-host.

[limbo127]

Yes CONFIG_KVMGT is enabled in .config .
With your config-3.14.1-host, compilation is done.

[limbo127]

Kernel Xen option must be set.