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Re: [Libguestfs] How to build virt-v2v



On Mon, Dec 14, 2020 at 02:01:58PM +0300, Andrey Shinkevich wrote:
> Hello Richard!
> 
> Would you please advise how to build virt-v2v?
> 
> I cloned it as 'git clone https://github.com/libguestfs/virt-v2v.git'
> Then I ran commands similar to building libguesfs:
> git submodule update --init
> CFLAGS=-fPIC ./autogen.sh
> 
> and got the error message:
> 
> checking for LIBGUESTFS... no
> configure: error: Package requirements (libguestfs >= 1.40) were not met:
> 
> No package 'libguestfs' found
> 
> Consider adjusting the PKG_CONFIG_PATH environment variable if you
> installed software in a non-standard prefix.
> 
> Alternatively, you may set the environment variables LIBGUESTFS_CFLAGS
> and LIBGUESTFS_LIBS to avoid the need to call pkg-config.
> See the pkg-config man page for more details.

The error message comes from this line:

https://github.com/libguestfs/virt-v2v/blob/b4d737364d858959421e788a5eddd45ddcab6cde/m4/guestfs-libraries.m4#L21

The PKG_CHECK_MODULES macro is described in the pkg-config(1) man
page, and also there's this description:

https://autotools.io/pkgconfig/pkg_check_modules.html

> But I do have the libguestfs installed and met the version requirement:
> 
> yum info libguestfs
> Loaded plugins: auto-update-debuginfo, fastestmirror, langpacks,
> priorities, product-id, rhsm-auto-add-pools, search-disabled-repos,
> va, virtuozzo, vzlinux, yum-plugin-readykernel
> Loading mirror speeds from cached hostfile
> Trying to discover and attach new pools
> 266 packages excluded due to repository priority protections
> Installed Packages
> Name        : libguestfs
> Arch        : x86_64
> Epoch       : 1
> Version     : 1.40.2
> Release     : 9.vz7.9
> Size        : 2.3 M
> Repo        : installed
> From repo   : virtuozzo-os

You probably also need libguestfs-devel, since the macro is really
looking for libguestfs.pc (probably /usr/lib64/pkgconfig/libguestfs.pc).

Rich.

> 
> Then I specified the path to the library like
> 
> LIBGUESTFS_LIBS=/usr/lib64/libguestfs.so.0 CFLAGS=-fPIC ./autogen.sh
> 
> and got the same error message.
> 
> I found no instraction for building virt-v2v at
> https://libguestfs.org/virt-v2v.1.html
> 
> I moved the virt-v2v project directory into my libguestfs one like
> .../libguestfs/virt-v2v and ran the autogen.sh from there but it has
> not helped either.
> 
> I will appreciate your boost with an advice how to build the
> virt-v2v correctly. Analyzing the config can take pretty time and
> the time matters for me.
> 
> Thank you.
> 
> Andrey Shinkevich

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
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