Enable the glusterfs storage driver only on 64bit architectures

Newer versions of GlusterFS support only 64bit architectures [1];
hence, restrict the usage of GlusterFS to enable the storage driver
for it only on 64bit Linux architectures.

[1] https://tracker.debian.org/news/1444468/accepted-glusterfs-110-1-source-into-experimental/

Gbp-Dch: Short

debian/control

@@ -23,7 +23,7 @@ Build-Depends:
  libdevmapper-dev [linux-any],
  libfuse3-dev [linux-any],
  libglib2.0-dev,
- libglusterfs-dev [linux-any],
+ libglusterfs-dev [amd64 arm64 ia64 mips64el ppc64 ppc64el riscv64 s390x sparc64],
  libgnutls28-dev,
  libiscsi-dev [linux-any],
  libnl-3-dev [linux-any],
@@ -256,7 +256,7 @@ Description: Virtualization daemon Xen connection driver
 
 Package: libvirt-daemon-driver-storage-gluster
 Section: admin
-Architecture: linux-any
+Architecture: amd64 arm64 ia64 mips64el ppc64 ppc64el riscv64 s390x sparc64
 Multi-Arch: no
 Depends:
  libvirt-daemon (= ${binary:Version}),

debian/rules

@@ -17,6 +17,7 @@ DPKG_GENSYMBOLS_CHECK_LEVEL = 4
 export DPKG_GENSYMBOLS_CHECK_LEVEL
 
 ARCHES_CEPH = amd64 arm64 armel armhf i386 mips64el mipsel powerpc ppc64el riscv64 s390x
+ARCHES_GLUSTER = amd64 arm64 ia64 mips64el ppc64 ppc64el riscv64 s390x sparc64
 ARCHES_LXC  = alpha amd64 arm64 armel armhf hppa i386 m68k mips64el mipsel powerpc ppc64 ppc64el riscv64 s390x sh4 sparc64 x32
 ARCHES_XEN  = amd64 arm64 armhf
 ARCHES_VBOX = amd64 i386
@@ -41,7 +42,11 @@ ifeq ($(DEB_HOST_ARCH_OS), linux)
     else
         WITH_STORAGE_RBD      = -Dstorage_rbd=disabled
     endif
-    WITH_STORAGE_GLUSTER      = -Dstorage_gluster=enabled
+    ifneq (,$(filter $(DEB_HOST_ARCH), $(ARCHES_GLUSTER)))
+        WITH_STORAGE_GLUSTER  = -Dstorage_gluster=enabled
+    else
+        WITH_STORAGE_GLUSTER  = -Dstorage_gluster=disabled
+    endif
     WITH_UDEV                 = -Dudev=enabled
     WITH_CAPNG                = -Dcapng=enabled
     WITH_LIBNL                = -Dlibnl=enabled