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Fix detection of required RBD version

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If building libvirt against Ubuntu precise, the librbd.h is lacking
many functions that libvirt expects. We have no version check, so
we were enabling RBD even though it cannot compile. This configure
check uses existance of 'rbd_get_features' as an identifier for the
min required version.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange 2017-04-07 15:12:08 +01:00
parent 6f37cb80df
commit 354191c5f1
1 changed files with 14 additions and 2 deletions
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16
m4/virt-storage-rbd.m4
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@ -28,12 +28,24 @@ AC_DEFUN([LIBVIRT_STORAGE_CHECK_RBD], [
AC_CHECK_HEADER([rbd/librbd.h], [LIBRBD_FOUND=yes; break;])
if test "$LIBRBD_FOUND" = "yes"; then
with_storage_rbd=yes
LIBRBD_LIBS="-lrbd -lrados"
old_LIBS="$LIBS"
LIBS="$LIBS $LIBRBD_LIBS"
AC_CHECK_FUNCS([rbd_get_features],[],[LIBRBD_FOUND=no])
LIBS="$old_LIBS"
fi
if test "$LIBRDB_FOUND" = "yes"; then
with_storage_rbd=yes
AC_DEFINE_UNQUOTED([WITH_STORAGE_RBD], [1],
[whether RBD backend for storage driver is enabled])
else
with_storage_rbd=no
if test "$with_storage_rbd" = "yes"; then
AC_MSG_ERROR([You must install the librbd library & headers to compile libvirt])
else
with_storage_rbd=no
fi
fi
fi
AM_CONDITIONAL([WITH_STORAGE_RBD], [test "$with_storage_rbd" = "yes"])