xen/common/Makefile: introduce HAS_{CPUFREQ,PCI,PASSTHROUGH,NS16550,KEXEC}

- make the compilation of ns16550.c depend upon HAS_NS16550;

- make the compilation of cpufreq depend upon HAS_CPUFREQ;

- make the compilation of pci depend upon HAS_PCI;

- make the compilation of passthrough depend upon HAS_PASSTHROUGH;

- make the compilation of kexec depend upon HAS_KEXEC.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com>
Acked-by: Keir Fraser <keir@xen.org>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
---
 xen/arch/ia64/Rules.mk        |    5 +++++
 xen/arch/x86/Rules.mk         |    5 +++++
 xen/common/Makefile           |    2 +-
 xen/common/shutdown.c         |    4 ++++
 xen/drivers/Makefile          |    6 +++---
 xen/drivers/char/Makefile     |    2 +-
 xen/drivers/char/console.c    |    4 ++++
 xen/include/asm-ia64/config.h |    1 +
 xen/include/asm-x86/config.h  |    1 +
 9 files changed, 25 insertions(+), 5 deletions(-)

1 files changed, 1 insertions, 1 deletions

diff --git a/xen/common/Makefile b/xen/common/Makefile
index 1d85e6586f..9249845832 100644
--- a/xen/common/Makefile
+++ b/xen/common/Makefile
@@ -8,7 +8,7 @@ obj-y += grant_table.o
 obj-y += irq.o
 obj-y += kernel.o
 obj-y += keyhandler.o
-obj-y += kexec.o
+obj-$(HAS_KEXEC) += kexec.o
 obj-y += lib.o
 obj-y += memory.o
 obj-y += multicall.o