Update the wscript to work with waf-1.8.8.  Based on:
http://cgit.freedesktop.org/pycairo/commit/?id=c57cd129407c904f8c2f752a59d0183df7b01a5e


--- pycairo-1.10.0.orig/wscript	2011-04-18 15:42:29.000000000 +0800
+++ pycairo-1.10.0/wscript	2015-04-20 13:01:45.383756898 +0800
@@ -13,18 +13,18 @@
 
 def options(ctx):
   print('  %s/options()' %d)
-  ctx.tool_options('gnu_dirs')
-  ctx.tool_options('compiler_cc')
-  ctx.tool_options('python') # options for disabling pyc or pyo compilation
+  ctx.load('gnu_dirs')
+  ctx.load('compiler_c')
+  ctx.load('python') # options for disabling pyc or pyo compilation
 
 
 def configure(ctx):
   print('  %s/configure()' %d)
 
   env = ctx.env
-  ctx.check_tool('gnu_dirs')
-  ctx.check_tool('compiler_cc')
-  ctx.check_tool('python')
+  ctx.load('gnu_dirs')
+  ctx.load('compiler_c')
+  ctx.load('python')
   ctx.check_python_version((3,1,0))
   ctx.check_python_headers()
   ctx.check_cfg(package='cairo', atleast_version=cairo_version_required,
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<div class='path'>path: <a href='/guix/log/?id=8afa00908b43d344d8c3fdd3c89d3dea4c205429'>root</a>/<a href='/guix/log/gnu?id=8afa00908b43d344d8c3fdd3c89d3dea4c205429'>gnu</a>/<a href='/guix/log/gnu/packages?id=8afa00908b43d344d8c3fdd3c89d3dea4c205429'>packages</a>/<a href='/guix/log/gnu/packages/nss.scm?id=8afa00908b43d344d8c3fdd3c89d3dea4c205429'>nss.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/nss.scm?id=8afa00908b43d344d8c3fdd3c89d3dea4c205429&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-12-17 03:07:52 +0100'>2021-12-17</span></td><td><a href='/guix/commit/gnu/packages/nss.scm?id=df8a93044c0aba2dc42fc345983d9c63a483d3a8'>gnu: Remove unreferenced nss/fixed.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/nss.scm (nss/fixed): Remove variable.
* gnu/packages/patches/nss-CVE-2021-43527.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2021-12-16 01:55:34 +0100'>2021-12-16</span></td><td><a href='/guix/commit/gnu/packages/nss.scm?id=ceb9c6c50ed2c0d127189bb5d28832b6538aa7a2'>gnu: nss-certs: Avoid top-level reference to NSS.</a><span class='msg-avail'>...<span class='msg-tooltip'>This is the only hammer I know for dealing with module cycles and
effectively fixes, for example, ‘guix show nss’ today.

It's also a very poor solution.

* gnu/packages/certs.scm (nss-certs)[version, source]: Copy verbatim
from the nss package rather than referring to it at the top level.

Reported by several users of #guix.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2021-12-13 17:48:25 +0100'>2021-12-13</span></td><td><a href='/guix/commit/gnu/packages/nss.scm?id=8394619baceb118df92e355377fd543bb1aa501a'>gnu: Simplify package inputs.</a><span class='msg-avail'>...<span class='msg-tooltip'>This commit was obtained by running:

  ./pre-inst-env guix style

without any additional argument.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-12-05 19:17:41 +0100'>2021-12-05</span></td><td><a href='/guix/commit/gnu/packages/nss.scm?id=9bc0f45df5d6aed217020b1183dca54989844fb0'>Merge remote-tracking branch 'origin/master' into core-updates-frozen</a></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2021-12-03 04:37:21 -0500'>2021-12-03</span></td><td><a href='/guix/commit/gnu/packages/nss.scm?id=080a5de2eeb5e0da83ae9fd94488508d5227c4e3'>gnu: nss: Fix CVE-2021-43527 via graft.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/patches/nss-CVE-2021-43527.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/nss.scm (nss/fixed): New variable
(nss)[replacement]: New field.
</span></span></td><td>Mark H Weaver</td></tr>
<tr><td><span title='2021-12-01 22:06:54 +0100'>2021-12-01</span></td><td><a href='/guix/commit/gnu/packages/nss.scm?id=f1a2e90409622b37b3975cd566c8c0b019e6f7a3'>gnu: Add nspr@4.32.</a><span class='msg-avail'>...<span class='msg-tooltip'>Required for icecat/icedove 91.

* gnu/packages/nss.scm (nspr-4.32): New variable.
</span></span></td><td>Jonathan Brielmaier</td></tr>