[Numpy-discussion] when will osx linker option -bundle be reflected in distutils
I was just wondering what plans there were to reflect the different
linker options (i.e. -bundle instead of -shared) that are required
on
OSX in the fcompiler files within distutils. While its a minor thing
it always catches the users of my software when they either install
fresh or update numpy ... and sometimes on a bad day it even catches
me ;-)
I'm sorry; I don't follow. What problems are you having? --
-- Robert Kern
---
OK for example the distribution g95.py in distutils/fcompiler has the
following code
executables = {
'version_cmd' : [g95, --version],
'compiler_f77' : [g95, -ffixed-form],
'compiler_fix' : [g95, -ffixed-form],
'compiler_f90' : [g95],
'linker_so': [g95,-shared],
'archiver' : [ar, -cr],
'ranlib' : [ranlib]
}
For osx you need to modify it to
executables = {
'version_cmd' : [g95, --version],
'compiler_f77' : [g95, -ffixed-form],
'compiler_fix' : [g95, -ffixed-form],
'compiler_f90' : [g95],
'linker_so': [g95,-shared],
'archiver' : [ar, -cr],
'ranlib' : [ranlib]
}
import sys
if sys.platform.lower() == 'darwin':
executables[linker_so'] = [g95,-Wall -bundle]
The 'shared' option is not implemented in the osx linker. Not sure
what the underlying difference between 'shared' and 'bundle' is but
this substitution is necessary and this has been working for me for
the last year or so. You also need the -Wall but for reasons that
completely escape me.
The same goes for gfortran and intel (both of which I use) and I
assume the other compilers that are available for OSX.
Prof Garry Willgoose,
Australian Professorial Fellow in Environmental Engineering,
Director, Centre for Climate Impact Management (C2IM),
School of Engineering, The University of Newcastle,
Callaghan, 2308
Australia.
Centre webpage: www.c2im.org.au
Phone: (International) +61 2 4921 6050 (Tues-Fri AM); +61 2 6545 9574
(Fri PM-Mon)
FAX: (International) +61 2 4921 6991 (Uni); +61 2 6545 9574 (personal
and Telluric)
Env. Engg. Secretary: (International) +61 2 4921 6042
email: garry.willgo...@newcastle.edu.au; g.willgo...@telluricresearch.com
email-for-life: garry.willgo...@alum.mit.edu
personal webpage: www.telluricresearch.com/garry
Do not go where the path may lead, go instead where there is no path
and leave a trail
Ralph Waldo Emerson
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Re: [Numpy-discussion] when will osx linker option -bundle be reflected in distutils
On Mon, Jan 5, 2009 at 18:48, Garry Willgoose
garry.willgo...@newcastle.edu.au wrote:
I was just wondering what plans there were to reflect the different
linker options (i.e. -bundle instead of -shared) that are required
on
OSX in the fcompiler files within distutils. While its a minor thing
it always catches the users of my software when they either install
fresh or update numpy ... and sometimes on a bad day it even catches
me ;-)
I'm sorry; I don't follow. What problems are you having? --
-- Robert Kern
---
OK for example the distribution g95.py in distutils/fcompiler has the
following code
executables = {
'version_cmd' : [g95, --version],
'compiler_f77' : [g95, -ffixed-form],
'compiler_fix' : [g95, -ffixed-form],
'compiler_f90' : [g95],
'linker_so': [g95,-shared],
'archiver' : [ar, -cr],
'ranlib' : [ranlib]
}
For osx you need to modify it to
executables = {
'version_cmd' : [g95, --version],
'compiler_f77' : [g95, -ffixed-form],
'compiler_fix' : [g95, -ffixed-form],
'compiler_f90' : [g95],
'linker_so': [g95,-shared],
'archiver' : [ar, -cr],
'ranlib' : [ranlib]
}
import sys
if sys.platform.lower() == 'darwin':
executables[linker_so'] = [g95,-Wall -bundle]
The 'shared' option is not implemented in the osx linker. Not sure
what the underlying difference between 'shared' and 'bundle' is but
this substitution is necessary and this has been working for me for
the last year or so. You also need the -Wall but for reasons that
completely escape me.
-Wall absolutely should not affect anything except adding warning
messages. I suspect something else is getting modified when you do
that.
The same goes for gfortran and intel (both of which I use) and I
assume the other compilers that are available for OSX.
I've been building scipy for years with gfortran and an unmodified
numpy on OS X. The correct switches are added in the
get_flags_linker_so() method:
def get_flags_linker_so(self):
opt = self.linker_so[1:]
if sys.platform=='darwin':
# MACOSX_DEPLOYMENT_TARGET must be at least 10.3. This is
# a reasonable default value even when building on 10.4 when using
# the official Python distribution and those derived from it (when
# not broken).
target = os.environ.get('MACOSX_DEPLOYMENT_TARGET', None)
if target is None or target == '':
target = '10.3'
major, minor = target.split('.')
if int(minor) 3:
minor = '3'
warnings.warn('Environment variable '
'MACOSX_DEPLOYMENT_TARGET reset to %s.%s' % (major, minor))
os.environ['MACOSX_DEPLOYMENT_TARGET'] = '%s.%s' % (major,
minor)
opt.extend(['-undefined', 'dynamic_lookup', '-bundle'])
else:
opt.append(-shared)
if sys.platform.startswith('sunos'):
# SunOS often has dynamically loaded symbols defined in the
# static library libg2c.a The linker doesn't like this. To
# ignore the problem, use the -mimpure-text flag. It isn't
# the safest thing, but seems to work. 'man gcc' says:
# .. Instead of using -mimpure-text, you should compile all
# source code with -fpic or -fPIC.
opt.append('-mimpure-text')
return opt
If this is not working for you, please show me the error messages you get.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth.
-- Umberto Eco
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Re: [Numpy-discussion] when will osx linker option -bundle be reflected in distutils
On Tue, Jan 06, 2009 at 11:48:57AM +1100, Garry Willgoose wrote: The 'shared' option is not implemented in the osx linker. Not sure what the underlying difference between 'shared' and 'bundle' is To answer this narrow part of the question, -shared is the way to build shared libraries on linux (I think it's part of the standard GNU ld and/or ELF binary format), and is how one builds all sorts of .so. On OS X, there is a difference between a dynamic library (one that is linked later via -lFOO flags, standard extension .dylib) and a loadable module (one that is loaded at runtime via dlopen() or similar methods, often extension .so). Linux doesn't have as sharp a distinction. OS X linker uses different flags to specify which one to build (-dynamiclib and -bundle, respectively). dan -- Daniel Macks dma...@netspace.org http://www.netspace.org/~dmacks ___ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion
[Numpy-discussion] when will osx linker option -bundle be reflected in distutils
I was just wondering what plans there were to reflect the different linker options (i.e. -bundle instead of -shared) that are required on OSX in the fcompiler files within distutils. While its a minor thing it always catches the users of my software when they either install fresh or update numpy ... and sometimes on a bad day it even catches me ;-) Prof Garry Willgoose, Australian Professorial Fellow in Environmental Engineering, Director, Centre for Climate Impact Management (C2IM), School of Engineering, The University of Newcastle, Callaghan, 2308 Australia. Centre webpage: www.c2im.org.au Phone: (International) +61 2 4921 6050 (Tues-Fri AM); +61 2 6545 9574 (Fri PM-Mon) FAX: (International) +61 2 4921 6991 (Uni); +61 2 6545 9574 (personal and Telluric) Env. Engg. Secretary: (International) +61 2 4921 6042 email: [EMAIL PROTECTED]; [EMAIL PROTECTED] email-for-life: [EMAIL PROTECTED] personal webpage: www.telluricresearch.com/garry Do not go where the path may lead, go instead where there is no path and leave a trail Ralph Waldo Emerson ___ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion
Re: [Numpy-discussion] when will osx linker option -bundle be reflected in distutils
On Mon, Dec 8, 2008 at 18:02, Garry Willgoose [EMAIL PROTECTED] wrote: I was just wondering what plans there were to reflect the different linker options (i.e. -bundle instead of -shared) that are required on OSX in the fcompiler files within distutils. While its a minor thing it always catches the users of my software when they either install fresh or update numpy ... and sometimes on a bad day it even catches me ;-) I'm sorry; I don't follow. What problems are you having? -- Robert Kern I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth. -- Umberto Eco ___ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion
