Issue 681504: using gcc on cygwin for config (original) (raw)

Created on 2003-02-06 06:46 by mdehoon, last changed 2022-04-10 16:06 by admin. This issue is now closed.

Files
File name Uploaded Description Edit
config.py.diff mdehoon,2003-02-06 06:48
Messages (12)
msg42688 - (view) Author: Michiel de Hoon (mdehoon) * Date: 2003-02-06 06:46
On Cygwin, I noticed that distutils tries to use the cc compiler instead of the gcc compiler for the config step, resulting in an error. Instead, for the build step the correct compiler (gcc) is being used. For the build step, build_clib.py and build_ext.py contain a call to customize_compiler after the call to new_compiler. The call to customize_compiler causes gcc to be used on cygwin. In config.py, however, this call to customize_compiler after the call to new_compiler is missing. Adding the call to customize_compiler after the call to new_compiler in config.py solves this problem, and the config step then runs correctly on Cygwin. BTW, I noticed that in version 1.44.6.3 of sysconfig.py in CVS, the function get_python_version is missing, causing errors in the build step. This is the latest committed version of sysconfig.py. So I used version 1.56 instead (which was committed earlier than 1.44.6.3, but has a higher version number ??). Michiel de Hoon University of Tokyo, Human Genome Center
msg42689 - (view) Author: Neal Norwitz (nnorwitz) * (Python committer) Date: 2003-02-07 22:55
Logged In: YES user_id=33168 Jason, can you provide any input about the issues w/Cygwin?
msg42690 - (view) Author: Jason Tishler (jlt63) * (Python triager) Date: 2003-02-10 15:54
Logged In: YES user_id=86216 > On Cygwin, I noticed that distutils tries to use the cc > compiler instead of the gcc compiler for the config > step, resulting in an error. Please excuse my ignorance, but what is the "config step?" How would one invoke the config step? Sorry, but I'm only lightly versed in distutils. > Instead, for the build > step the correct compiler (gcc) is being used. The build step seems to work fine under Cygwin Python 2.2.2 and CVS.
msg42691 - (view) Author: Michiel de Hoon (mdehoon) * Date: 2003-02-10 16:06
Logged In: YES user_id=488897 The config step is where you do python setup.py config where you can do some test compilations before doing "python setup.py build". Basically it works the same as autoconf/automake's configure scripts. The code for the config is in distutils/command/config.py. If you want to try it out, you can go to my website http://bonsai.ims.u-tokyo.ac.jp/~mdehoon, download pygist, unpack, and run "python setup.py config". You'll notice that it won't work on cygwin, as it tries to use cc instead of gcc. --Michiel.
msg42692 - (view) Author: Jason Tishler (jlt63) * (Python triager) Date: 2003-02-10 16:56
Logged In: YES user_id=86216 OK, now I get it. Thanks for you help. I can reproduce the problem under Cygwin too. Now the question is, where is the right place to fix this? Under Red Hat 8.0, I get the following: $ ls -il /usr/bin/cc /usr/bin/c++ /usr/bin/g++ 328451 -rwxr-xr-x 4 root root 80780 Sep 3 23:03 /usr/bin/c++ 328396 lrwxrwxrwx 1 root root 3 Oct 21 10:04 /usr/bin/cc -> gcc 328451 -rwxr-xr-x 4 root root 80780 Sep 3 23:03 /usr/bin/g++ Under Cygwin, I get the following: $ ls -il /usr/bin/cc /usr/bin/c++ /usr/bin/g++ ls: /usr/bin/cc: No such file or directory 423677 lrwxrwxrwx 1 Administ Domain U 18 Dec 3 08:22 /usr/bin/c++ -> g++.exe 423679 -rwxrwxrwx 1 Administ Domain U 89600 Nov 14 17:37 /usr/bin/g++ So from the above, we can see that a symlink from cc to gcc could be considered missing under Cygwin. I will ask the Cygwin gcc maintainer to add this symlink. If the request is granted, will you consider this issue resolved?
msg42693 - (view) Author: Michiel de Hoon (mdehoon) * Date: 2003-02-10 17:13
Logged In: YES user_id=488897 OK thanks for your help. Adding a symlink would work, but I am not sure if it is the best solution. For the build step, distutils uses gcc automatically and doesn't need a symlink from cc. I think it is best if the config step mimics the build step as closely as possible, and having one solution for the build step and another for the config step might break things. For the patch that I submitted, I compared the config and the build step to find out where one chooses gcc and the other cc. The patch contains only one or two lines, and lets the config step choose gcc in the same way as the build step. Would that be OK with you? Or do you think there might be some problem with the patch I submitted? --Michiel.
msg42694 - (view) Author: Jason Tishler (jlt63) * (Python triager) Date: 2003-02-10 20:40
Logged In: YES user_id=86216 > Adding a symlink would work, but I > am not sure if it is the best solution. Maybe both should be done? > Would that be OK with you? The patch is fine by me since it fixes Cygwin and I assume any other Unix (if any) without a /usr/bin/cc. > Or do you think there might be some problem > with the patch I submitted? No, I don't think that there will be problems with your patch. However, I cannot approve patches. I can only submit them like you. :,) Neal, should someone from distutils take a look-see. Or, is it OK for me to apply?
msg42695 - (view) Author: Neal Norwitz (nnorwitz) * (Python committer) Date: 2003-02-10 20:55
Logged In: YES user_id=33168 amk, could you take a quick look at this patch to distutils?
msg42696 - (view) Author: A.M. Kuchling (akuchling) * (Python committer) Date: 2003-02-18 01:21
Logged In: YES user_id=11375 The patch looks fine; I'll apply it.
msg42697 - (view) Author: A.M. Kuchling (akuchling) * (Python committer) Date: 2003-02-18 01:37
Logged In: YES user_id=11375 Applied as revision 1.17 of config.py; thanks! Re-assigned to Neal, because I'm not sure if the bug can be closed now or not.
msg42698 - (view) Author: Neal Norwitz (nnorwitz) * (Python committer) Date: 2003-02-18 05:54
Logged In: YES user_id=33168 Michiel, if there is anything else that needs to be done, please add a comment to this patch. I think everything is done, so I'm closing it.
msg42699 - (view) Author: Michiel de Hoon (mdehoon) * Date: 2003-02-18 06:12
Logged In: YES user_id=488897 I tried the updated version in CVS and tested it with Cygwin. It works fine. Thanks. --Michiel.
History
Date User Action Args
2022-04-10 16:06:35 admin set github: 37922
2003-02-06 06:46:55 mdehoon create