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Re: [libvirt] [PATCH] build: avoid build failure without polkit



On 07/02/2013 08:01 AM, Daniel P. Berrange wrote:
> On Tue, Jul 02, 2013 at 07:49:50AM -0600, Eric Blake wrote:
>> On 07/02/2013 03:43 AM, Daniel P. Berrange wrote:
>>> On Mon, Jul 01, 2013 at 02:10:29PM -0600, Eric Blake wrote:
>>>> rpmbuild of mingw-libvirt.spec failed with:
>>>>
>>>>   GEN      libvirt.syms
>>>>   GEN      libvirt_qemu.def
>>>> cat: libvirt_access.syms: No such file or directory
>>>> cat: libvirt_access_qemu.syms: No such file or directory
>>>> cat: libvirt_access_lxc.syms: No such file or directory
>>>>

> Oh, is it a race condition in generating the .def file. The
> libvirt_access*.sym files are all auto-generated files. The
> .def file is also auto-generated, and there is no dep from
> the .def file onto the libvirt_acces*sym files to control
> execution order.

The problem is not the def file, but the libvirt.syms file.  But the
Makefile dependency is:

libvirt.syms: libvirt_public.syms $(USED_SYM_FILES) \
		$(top_builddir)/config.status

which includes libvirt_access.syms, yet a verbose make shows that the
failure is:

...
printf 'global:\n\n' >>libvirt.syms-tmp && \
cat ../../src/libvirt_private.syms libvirt_access.syms
libvirt_access_qemu.syms libvirt_access_lxc.syms
../../src/libvirt_esx.syms   ../../src/libvirt_vmx.syms
../../src/libvirt_libssh2.syms  >>libvirt.syms-tmp && \
printf '\n\nlocal:\n*;\n\n};' >>libvirt.syms-tmp && \
chmod a-w libvirt.syms-tmp && \
mv libvirt.syms-tmp libvirt.syms
cat: libvirt_access.syms: No such file or directory
cat: libvirt_access_qemu.syms: No such file or directory
cat: libvirt_access_lxc.syms: No such file or directory

so it may be a VPATH problem.  In fact, looking at that line, look at
how libvirt_access.syms is listed locally, while
../../src/libvirt_esx.syms is listed in another directory.  I'm still
playing with it...

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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