Don't build LXC module when building less than 1.0.2

The functions that the LXC module wraps did not appear until 1.0.2 so we
can't build the module unless we're building against 1.0.2 or newer.

1 files changed, 23 insertions, 11 deletions

diff --git a/setup.py b/setup.py
index d641fab..bf32e2a 100644
--- a/setup.py
+++ b/setup.py
@@ -7,6 +7,7 @@ from distutils.command.sdist import sdist
 from distutils.dir_util import remove_tree
 from distutils.util import get_platform
 from distutils.spawn import spawn
+from distutils.errors import DistutilsExecError
 import distutils
 
 import sys
@@ -17,6 +18,7 @@ import re
 import time
 
 MIN_LIBVIRT = "0.10.2"
+MIN_LIBVIRT_LXC = "1.0.2"
 
 # Hack to stop 'pip install' failing with error
 # about missing 'build' dir.
@@ -33,6 +35,14 @@ spawn([pkgcfg,
        "--atleast-version=%s" % MIN_LIBVIRT,
        "libvirt"])
 
+have_libvirt_lxc=True
+try:
+    spawn([pkgcfg,
+           "--atleast-version=%s" % MIN_LIBVIRT_LXC,
+         "libvirt"])
+except DistutilsExecError,e:
+    have_libvirt_lxc=False
+
 def get_pkgconfig_data(args, mod, required=True):
     """Run pkg-config to and return content associated with it"""
     f = os.popen("%s %s %s" % (pkgcfg, " ".join(args), mod))
@@ -79,17 +89,18 @@ if ldflags != "":
 c_modules.append(moduleqemu)
 py_modules.append("libvirt_qemu")
 
-modulelxc = Extension('libvirtmod_lxc',
-                      sources = ['libvirt-lxc-override.c', 'build/libvirt-lxc.c', 'typewrappers.c', 'libvirt-utils.c'],
-                      libraries = [ "virt-lxc" ],
-                      include_dirs = [ "." ])
-if cflags != "":
-    modulelxc.extra_compile_args.append(cflags)
-if ldflags != "":
-    modulelxc.extra_link_args.append(ldflags)
+if have_libvirt_lxc:
+    modulelxc = Extension('libvirtmod_lxc',
+                          sources = ['libvirt-lxc-override.c', 'build/libvirt-lxc.c', 'typewrappers.c', 'libvirt-utils.c'],
+                          libraries = [ "virt-lxc" ],
+                          include_dirs = [ "." ])
+    if cflags != "":
+        modulelxc.extra_compile_args.append(cflags)
+    if ldflags != "":
+        modulelxc.extra_link_args.append(ldflags)
 
-c_modules.append(modulelxc)
-py_modules.append("libvirt_lxc")
+    c_modules.append(modulelxc)
+    py_modules.append("libvirt_lxc")
 
 
 class my_build(build):
@@ -114,7 +125,8 @@ class my_build(build):
 
         self.spawn(["python", "generator.py", "libvirt", apis[0]])
         self.spawn(["python", "generator.py", "libvirt-qemu", apis[1]])
-        self.spawn(["python", "generator.py", "libvirt-lxc", apis[2]])
+        if have_libvirt_lxc:
+            self.spawn(["python", "generator.py", "libvirt-lxc", apis[2]])
 
         build.run(self)