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Re: automake-1.11 test failure on darwin9 - instmany-python.test


From: Ralf Wildenhues
Subject: Re: automake-1.11 test failure on darwin9 - instmany-python.test
Date: Sun, 24 May 2009 14:49:58 +0200
User-agent: Mutt/1.5.18 (2008-05-17)

* Peter O'Gorman wrote on Thu, May 21, 2009 at 03:39:29PM CEST:
> Ralf Wildenhues wrote:
> > That aims to ensure that if you do
> >   ./configure --prefix=$HOME/local
> > 
> > as non-root user, you have a chance to actually install your python
> > files below $HOME, too, even with the buggy python on that Mac OS X
> > release.  Similarly with other --prefix values that clearly point
> > outside of the normal system root: why should the python files be
> > installed in system directories in that case?  If that would really
> > be desired, then we should probably provide for a straightforward way to
> > override the choices done by the macro.  (There is such an override now,
> > but only at 'make all'/'make install' time, by overriding the related
> > make variables.
> 
> Well, they are cache vars, so they can be overridden at configure time
> too by doing ./configure ... am_cv_python_pythondir=/Somewhere/good etc.
> I don't see the need to add a --with-foo configure option yet.

Good point.

> > We could limit this patch to $am_cv_python_platform = darwin, but I'm
> > not sure whether that would be necessary at all.
> > 
> > However, I have a few questions to the patch myself:
> > 
> > How come you added that /System/Library* thingy rather than just
> > /System*?
> 
> Well, there is nothing below /System except for Library, but yes,
> /System* would have the same effect. Note that /System, like /usr is
> theoretically a vendor only area.

OK.

> > What about --prefix=/usr/ and similar variants?  The stripping of
> > trailing slashes has only been added to Autoconf after 2.63.
> 
> I don't care :) The only people doing ./configure --prefix=/usr should
> be Apple engineers anyway.

OK, then /usr/ is irrelevant, /usr is enough.

> > BTW, would excluding /usr/local even be desirable?  Can't there be a
> > python hierarchy below /usr/local either?
> 
> Yeah, I wasn't too sure about /usr/local, removing it (because people
> may very well have installed newer python there) is probably a good idea.

OK.

I've pushed this patch now.

Thanks again,
Ralf

2009-05-23  Peter O'Gorman  <address@hidden>

        python: do not install in system directories on Darwin 9.
        On Darwin 9, get_python_lib returns a path below `/Library/Python'
        regardless of the `prefix' argument it was passed, causing `make
        install' to target the system directories regardless of `--prefix'
        argument used.  Work around this Darwin bug by ignoring the result
        of get_python_lib if it points outside of the passed prefix, and
        the prefix was not a system directory.
        * m4/python.m4 (AM_PATH_PYTHON): If the prefix does not match the
        initial portion of the pythondir returned by get_python_lib, then
        ignore it unless the configured prefix is `/usr' or starts with
        `/System'.  Fixes instmany-python.test failure on Mac OS X 10.5.7.
        * NEWS: Update.

diff --git a/NEWS b/NEWS
index fe4a4d9..20d5080 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,16 @@
+New in 1.11.0a:
+
+Bugs fixed in 1.11.0a:
+
+* Long standing bugs:
+
+  - On Darwin 9, `pythondir' and `pyexecdir' pointed below `/Library/Python'
+    even if the `--prefix' argument pointed outside of a system directory.
+    AM_PATH_PYTHON has been fixed to ignore the value returned from python's
+    `get_python_lib' function if it points outside the configured prefix,
+    unless the `--prefix' argument was either `/usr' or below `/System'.
+
+
 New in 1.11:
 
 * Version requirements:
diff --git a/m4/python.m4 b/m4/python.m4
index 239285f..16de9c3 100644
--- a/m4/python.m4
+++ b/m4/python.m4
@@ -128,6 +128,14 @@ python2.1 python2.0])
        am__strip_prefix=`echo "$am_py_prefix" | sed 's|.|.|g'`
        am_cv_python_pythondir=`echo "$am_cv_python_pythondir" | sed 
"s,^$am__strip_prefix,$PYTHON_PREFIX,"`
        ;;
+     *)
+       case $am_py_prefix in
+         /usr|/System*) ;;
+         *)
+         
am_cv_python_pythondir=$PYTHON_PREFIX/lib/python$PYTHON_VERSION/site-packages
+         ;;
+       esac
+       ;;
      esac
     ])
   AC_SUBST([pythondir], [$am_cv_python_pythondir])
@@ -158,6 +166,14 @@ python2.1 python2.0])
        am__strip_prefix=`echo "$am_py_exec_prefix" | sed 's|.|.|g'`
        am_cv_python_pyexecdir=`echo "$am_cv_python_pyexecdir" | sed 
"s,^$am__strip_prefix,$PYTHON_EXEC_PREFIX,"`
        ;;
+     *)
+       case $am_py_exec_prefix in
+         /usr|/System*) ;;
+         *)
+          
am_cv_python_pyexecdir=$PYTHON_EXEC_PREFIX/lib/python$PYTHON_VERSION/site-packages
+          ;;
+       esac
+       ;;
      esac
     ])
   AC_SUBST([pyexecdir], [$am_cv_python_pyexecdir])




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