libxl: Use libxentoollog in preference to libxenctrl if available.

Upstream Xen is in the process of splitting the (stable API) xtl_*
interfaces out from the (unstable API) libxenctrl library and into a
new (stable API) libxentoollog.

In order to be compatible with Xen both before and after this
transition check for xtl_createlogger_stdiostream in a libxentoollog
library and use it if present. If it is not present assume it is in
libxenctrl.

Compile tested on Xen 4.6 and a development tree with the split in
place.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
This commit is contained in:
Ian Campbell 2015-12-10 11:38:36 +00:00 committed by Jim Fehlig
parent b7b439196c
commit 716be2570a

View File

@ -883,7 +883,6 @@ if test "$with_libxl" != "no" ; then
PKG_CHECK_MODULES([LIBXL], [xenlight], [
LIBXL_FIRMWARE_DIR=`$PKG_CONFIG --variable xenfirmwaredir xenlight`
LIBXL_EXECBIN_DIR=`$PKG_CONFIG --variable libexec_bin xenlight`
LIBXL_LIBS="$LIBXL_LIBS -lxenctrl"
with_libxl=yes
], [LIBXL_FOUND=no])
if test "$LIBXL_FOUND" = "no"; then
@ -896,7 +895,7 @@ if test "$with_libxl" != "no" ; then
LIBS="$LIBS $LIBXL_LIBS"
AC_CHECK_LIB([xenlight], [libxl_ctx_alloc], [
with_libxl=yes
LIBXL_LIBS="$LIBXL_LIBS -lxenlight -lxenctrl"
LIBXL_LIBS="$LIBXL_LIBS -lxenlight"
],[
if test "$with_libxl" = "yes"; then
fail=1
@ -924,6 +923,14 @@ if test "$with_libxl" = "yes"; then
if test "x$LIBXL_EXECBIN_DIR" != "x"; then
AC_DEFINE_UNQUOTED([LIBXL_EXECBIN_DIR], ["$LIBXL_EXECBIN_DIR"], [directory containing Xen libexec binaries])
fi
dnl Check if the xtl_* infrastructure is in libxentoollog
dnl (since Xen 4.7) if not then assume it is in libxenctrl
dnl (as it was for 4.6 and earler)
AC_CHECK_LIB([xentoollog], [xtl_createlogger_stdiostream], [
LIBXL_LIBS="$LIBXL_LIBS -lxentoollog"
],[
LIBXL_LIBS="$LIBXL_LIBS -lxenctrl"
])
fi
AM_CONDITIONAL([WITH_LIBXL], [test "$with_libxl" = "yes"])