[libvirt] --with-xen=foo

So, when I merged my changes up yesterday to some of the developments going on, it would seem that one of the changesets I pulled in had a bit of a reduction in configure flexibility. I'm not yet sure what changeset caused it...but I used to be able to specify an external xen tree with the following line in a Makefile... ./autogen.sh --prefix=/usr --with-xen=$(XEN_SRC)/dist/install/usr This now seems to fail to find that xen tree, as I error out with: gcc -DHAVE_CONFIG_H -I. -I. -I.. -I../gnulib/lib -I../gnulib/lib -I../include -I../include -I../qemud -I/usr/include/libxml2 -DBINDIR=\"/usr/libexec\" -DSBINDIR=\"/usr/sbin\" -DSYSCONF_DIR=\"/etc\" -DLOCALEBASEDIR=\"/usr/share/locale\" -DLOCAL_STATE_DIR=\"/var\" -DGETTEXT_PACKAGE=\"libvirt\" -Wall -Wformat -Wformat-security -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wextra -Wshadow -Wcast-align -Wwrite-strings -Waggregate-return -Wstrict-prototypes -Winline -Wredundant-decls -Wno-sign-compare -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fasynchronous-unwind-tables -g -O2 -MT stats_linux.lo -MD -MP -MF .deps/stats_linux.Tpo -c stats_linux.c -fPIC -DPIC -o .libs/stats_linux.o stats_linux.c:24:16: error: xs.h: No such file or directory stats_linux.c: In function 'check_bd_connected': stats_linux.c:154: warning: implicit declaration of function 'xs_read' stats_linux.c:154: warning: nested extern declaration of 'xs_read' stats_linux.c:154: warning: assignment makes pointer from integer without a cast I assume this has something to do with Daniel B's changes to configure scripts recently. Could you give me a pointer as to where I should be looking? Ben