Re: [libvirt] [PATCH] build: hoist system-specific checks before library checks

Commit f92c7e3 fixed a regression for native builds, but introduced a regression for cross-compilation builds; in particular, ./autobuild.sh on a Fedora system with mingw cross-compiler fails with: checking for qemu-kvm... /usr/bin/qemu-kvm checking for yajl_parse_complete in -lyajl... no checking for yajl_tree_parse in -lyajl... no configure: error: You must install the libyajl library & headers to compile libvirt Since we default $with_qemu to 'yes' rather than 'check', and then flip that default based on platform-specific checks, those platform specifics need to come prior to any library checks that depend on the value of $with_qemu. * configure.ac: Ensure system defaults are sane before checking for things that make decisions based on system default. Signed-off-by: Eric Blake <eblake(a)redhat.com&gt; --- I'm tempted to push this under the build-breaker rule, so that I can get a successful ./autobuild.sh run.