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xen-devel
Re: [Xen-devel] xen 4.1.0 rc1 build problem for local CONFIG_QEMU direct
On Fri, 14 Jan 2011, Ian Campbell wrote:
The problem is that (in tools/Makefile) if CONFIG_QEMU is a directory
(when tested from tools) then QEMU_ROOT is set to this. Then the script
goes into the ioemu-dir directory and runs $(QEMU_ROOT)/xen-setup .
Unfortunately QEMU_ROOT is relative to tools not tools/ioemu-dir and
things break. If you hack around this by adding and extra ../ to QEMU_ROOT
it fails later because symbolic links created later on such as
ioemu-dir/i386-dm/Makefile don't work.
So far the only way I have found to get it to work properly is to set
CONFIG_QEMU to an absolute directory (because I know what it will be)
which isn't portable.
Perhaps you could/should use $(XEN_ROOT) and specify the path relative
to it?
Unfortunately XEN_ROOT often gets reset to a relative location, and
stubdom/Makefile requires it to be relative. The best way I have found so
far is to add
export XEN_ROOT_ABS=$(CURDIR)
to the bottom level Makefile and then set
CONFIG_QEMU ?= $(XEN_ROOT_ABS)/qemu-xen.git
in Config.mk
Michael Young
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