Make it build with QEMU 2.0, too

Also begin to work on rpms

test-build-el7.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+# Cheatsheet for CentOS 7 packaging (not a build script)
+
+set -e
+rm -f /etc/yum.repos.d/CentOS-Media.repo
+yum -y --enablerepo=extras install centos-release-scl epel-release
+yum -y --enablerepo='*' install devtoolset-9-gcc-c++ devtoolset-9-libatomic-devel gperftools-devel
+yumdownloader --source qemu
+yumdownloader --source fio
+yum-builddep -y --enablerepo='*' qemu
+yum -y install rpm-build
+. /opt/rh/devtoolset-9/enable
+rpm --nomd5 -i qemu*.src.rpm
+rpm --nomd5 -i fio*.src.rpm
+cd ~/rpmbuild/SPECS
+rpmbuild -bp fio.spec
+perl -i -pe 's/^make V=1/exit 1; make V=1/' qemu.spec
+rpmbuild -bc qemu.spec
+perl -i -pe 's/^exit 1; make V=1/make V=1/' qemu.spec
+cd ~/rpmbuild/BUILD/qemu*/
+make qapi-types.h
+mkdir -p ~/vitastor/qemu/b/qemu
+cp config-host.h ~/vitastor/qemu/b/qemu 
+cp qapi-types.h ~/vitastor/qemu/b/qemu
+cp -r include ~/vitastor/qemu
+cd ~/vitastor
+sh copy-qemu-includes.sh
+mv qemu qemu-old
+mv qemu-copy qemu
+ln -s ~/rpmbuild/BUILD/fio*/ fio
+sh copy-fio-includes.sh
+rm fio
+mv fio-copy fio