Update bundled bundled capnp to 0.8.1 due to CVE-2022-46149

- This only affects pycapnp if you're using bundled capnp (otherwise
  just update libcapnp)
  * pypi packages are affected

README.md

@@ -19,7 +19,7 @@
 * cmake (needed for bundled capnproto)
   - ninja (macOS + Linux)
   - Visual Studio 2017+
-* capnproto-0.8.0 (0.7.0 will also work if linking to system libraries)
+* capnproto-0.8.0 (>=0.7.0 will also work if linking to system libraries)
   - Not necessary if using bundled capnproto
 * Python development headers (i.e. Python.h)
   - Distributables from python.org include these, however they are usually in a separate package on Linux distributions

buildutils/bundle.py

@@ -26,7 +26,7 @@ pjoin = os.path.join
 #
 
 
-bundled_version = (0, 8, 0)
+bundled_version = (0, 8, 1)
 libcapnp_name = "capnproto-c++-%i.%i.%i.tar.gz" % (bundled_version)
 libcapnp_url = "https://capnproto.org/" + libcapnp_name
 

setup.py

@@ -136,7 +136,7 @@ class build_libcapnp_ext(build_ext_c):
 
             # Look for capnproto using pkg-config (and minimum version)
             try:
-                if pkgconfig.installed("capnp", ">= 0.8.0"):
+                if pkgconfig.installed("capnp", ">= 0.7.0"):
                     need_build = False
                 else:
                     need_build = True