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e64f2fab92
LIBVIRT_ARG_WITH_ALT is more generic than LIBVIRT_ARG_WITH, which is tailored at switching features on and off. Rename the macros according to their intended purpose, and add some documentation to help developers pick between the two.
98 lines
3.3 KiB
Plaintext
98 lines
3.3 KiB
Plaintext
dnl The libxl driver
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dnl
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dnl Copyright (C) 2016 Red Hat, Inc.
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dnl
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dnl This library is free software; you can redistribute it and/or
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dnl modify it under the terms of the GNU Lesser General Public
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dnl License as published by the Free Software Foundation; either
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dnl version 2.1 of the License, or (at your option) any later version.
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dnl
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dnl This library is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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dnl Lesser General Public License for more details.
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dnl
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dnl You should have received a copy of the GNU Lesser General Public
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dnl License along with this library. If not, see
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dnl <http://www.gnu.org/licenses/>.
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dnl
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AC_DEFUN([LIBVIRT_DRIVER_ARG_LIBXL], [
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LIBVIRT_ARG_WITH_FEATURE([LIBXL], [libxenlight], [check])
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])
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AC_DEFUN([LIBVIRT_DRIVER_CHECK_LIBXL], [
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LIBXL_LIBS=""
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LIBXL_CFLAGS=""
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LIBXL_FIRMWARE_DIR=""
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LIBXL_EXECBIN_DIR=""
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LIBXL_API_VERSION="-DLIBXL_API_VERSION=0x040400"
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dnl search for libxl, aka libxenlight
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dnl Xen > 4.5 introduced a pkgconfig file, check for it first
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old_with_libxl="$with_libxl"
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LIBVIRT_CHECK_PKG([LIBXL], [xenlight], [4.4.0], [true])
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if test "x$with_libxl" = "xyes" ; then
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LIBXL_FIRMWARE_DIR=$($PKG_CONFIG --variable xenfirmwaredir xenlight)
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LIBXL_EXECBIN_DIR=$($PKG_CONFIG --variable libexec_bin xenlight)
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fi
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dnl pkgconfig file not found, fallback to lib probe
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if test "x$with_libxl" = "xno" ; then
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with_libxl="$old_with_libxl"
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dnl LIBXL_API_VERSION 4.4.0 introduced a new parameter to
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dnl libxl_domain_create_restore for specifying restore parameters.
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dnl The libxl driver will make use of this new parameter for specifying
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dnl the Xen migration stream version. Specify LIBXL_API_VERSION to trigger
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dnl an error if there is too old xenlight
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old_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS $LIBXL_API_VERSION"
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LIBVIRT_CHECK_LIB([LIBXL], [xenlight], [libxl_ctx_alloc], [libxl.h], [fail="1"])
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CFLAGS="$old_CFLAGS"
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if test $fail = 1; then
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AC_MSG_ERROR([You must install the libxl Library from Xen >= 4.4 to compile libxenlight driver with -lxl])
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fi
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fi
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if test "$with_libxl" = "yes"; then
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old_LIBS="$LIBS"
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old_CFLAGS="$CFLAGS"
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LIBXL_CFLAGS="$LIBXL_CFLAGS $LIBXL_API_VERSION"
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dnl If building with libxl, use the libxl utility header and lib too
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AC_CHECK_HEADERS([libxlutil.h])
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LIBXL_LIBS="$LIBXL_LIBS -lxlutil"
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if test "x$LIBXL_FIRMWARE_DIR" != "x"; then
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AC_DEFINE_UNQUOTED([LIBXL_FIRMWARE_DIR], ["$LIBXL_FIRMWARE_DIR"], [directory containing Xen firmware blobs])
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fi
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if test "x$LIBXL_EXECBIN_DIR" != "x"; then
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AC_DEFINE_UNQUOTED([LIBXL_EXECBIN_DIR], ["$LIBXL_EXECBIN_DIR"], [directory containing Xen libexec binaries])
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fi
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dnl Check if the xtl_* infrastructure is in libxentoollog
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dnl (since Xen 4.7) if not then assume it is in libxenctrl
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dnl (as it was for 4.6 and earler)
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AC_CHECK_LIB([xentoollog], [xtl_createlogger_stdiostream], [
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LIBXL_LIBS="$LIBXL_LIBS -lxentoollog"
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],[
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LIBXL_LIBS="$LIBXL_LIBS -lxenctrl"
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])
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CFLAGS="$old_CFLAGS"
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LIBS="$old_LIBS"
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fi
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AC_SUBST([LIBXL_CFLAGS])
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AC_SUBST([LIBXL_LIBS])
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])
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AC_DEFUN([LIBVIRT_RESULT_LIBXL], [
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LIBVIRT_RESULT_LIB([LIBXL])
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])
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AC_DEFUN([LIBVIRT_DRIVER_RESULT_LIBXL], [
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LIBVIRT_RESULT([libxl], [$with_libxl])
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])
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