Merged in jamadden/numpy/issue-21-install-from-git-on-osx (pull request ganesh-k13#3)

rlamy · rlamy · commit ed5758a199f9 · 2015-08-28T18:22:17.000+01:00
Fix ganesh-k13#21. Do some __file__ munging on OS X in setup.py to compensate for symlinks in $TMPDIR
diff --git a/setup.py b/setup.py
@@ -30,6 +30,20 @@
 else:
     import __builtin__ as builtins
 
+if sys.platform == 'darwin' and __file__.startswith('/var'):
+    # See https://bitbucket.org/pypy/numpy/issues/21. Basically, a pip
+    # install from a git checkout gets /var and /private/var confused
+    # on OS X. The former is a symlink to the later, and used as
+    # $TMPDIR (to which the checkout is copied), and pip
+    # reads-and-evals this setup.py directly and sets __file__ to
+    # something underneath $TMPDIR. Meanwhile, when the rest of the
+    # code is executed by the python interpreter, it gets the complete path
+    # starting with /private. This confuses numpy.distutils.misc_util:rel_path
+    # and breaks shared libraries.
+    # So to fix it, we change our __file__ because it's the least invasive thing to
+    # do. This should only happen from git checkouts, pip uses a different mechanism
+    # for tarballs. The OS X filesystem layout is also unlikely to change.
+    __file__ = '/private' + __file__
 
 CLASSIFIERS = """\
 Development Status :: 5 - Production/Stable
