[issue29541] Python3 error while building on Alt-F

[Irit Katriel]

Irit Katriel  added the comment:

3.6 is no longer maintained, please create a new issue if you are seeing this 
problem on a current version (>= 3.9).

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nosy: +iritkatriel
resolution:  -> out of date
stage:  -> resolved
status: open -> closed

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[issue29541] Python3 error while building on Alt-F

[Chih-Hsuan Yen]

Change by Chih-Hsuan Yen :


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nosy:  -yan12125

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[issue29541] Python3 error while building on Alt-F

[Martin Panter]

Martin Panter  added the comment:

The missing “crypt” symbol is probably this function: 
. It is 
defined by the OS or a separate library, not by Python. You may need to link 
the “_crypt” Python module to the library that contains the function. E.g. in 
Glibc  you are meant to 
“link with -lcrypt”, although I suspect Python’s “setup.py” normally does that 
automatically.

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nosy: +martin.panter

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[issue29541] Python3 error while building on Alt-F

[Honza Skýpala]

Honza Skýpala added the comment:

1. What's the result of ```./python -E```?

Python 3.6.0 (default, Feb 13 2017, 08:16:44)
[GCC 4.5.4 20120202 (prerelease)] on linux
Type "help", "copyright", "credits" or "license" for more information.

2. Does `import crypt` run fine in ./python?

No, gives the error
./python: can't resolve symbol 'crypt'

3. Are there pre-installed Python on Alt-F? Uninstall them first may help

No, there is no python preinstalled (no python3, not even python2)

4. Is there a symbol called crypt in `nm ./python`?

No, `nm ./python | grep crypt` gives no results

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[issue29541] Python3 error while building on Alt-F

[Chi Hsuan Yen]

Chi Hsuan Yen added the comment:

That's super strange. crypt() is used in _crypt module only, and this modules 
is not used elsewhere in Python. A few more tests may help diagnostics

1. What's the result of ```./python -E```?
2. Does `import crypt` run fine in ./python?
3. Are there pre-installed Python on Alt-F? Uninstall them first may help
4. Is there a symbol called crypt in `nm ./python`?

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[issue29541] Python3 error while building on Alt-F

[Honza Skýpala]

Honza Skýpala added the comment:

Hi Chi Hsuan Yen, thanks for trying to help, unfortunately no change, still 
getting the same error.

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[issue29541] Python3 error while building on Alt-F

[Chi Hsuan Yen]

Chi Hsuan Yen added the comment:

My patch at https://hg.python.org/cpython/rev/ca2f024ce7cb may help. It points 
out missing symbols earlier.

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nosy: +Chi Hsuan Yen

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[issue29541] Python3 error while building on Alt-F

[Honza Skýpala]

New submission from Honza Skýpala:

While trying to build Python 3.6.0 on emmbedded Linux device — D-Link DNS-320L 
running Alt-F firmware (Linux 3.18.28 #1 Fri Jun 17 14:44:39 WEST 2016 armv5tel 
GNU/Linux), it fails with

./python: can't resolve symbol 'crypt'
make: *** [sharedmods] Error 1

I can see the python executable is compiled fine in the source directory, if I 
try to run it, then it does work, including some quick tests (calculations, 
os.getcwd, random.randint -- works fine). 

I can also see that compiling the crypt modules did not report any errors and 
the .o file is present on the disk. I guess it is some kind of linking error?

Attaching the log from the build.

--
components: Build
files: build.log
messages: 287666
nosy: Honza Skýpala
priority: normal
severity: normal
status: open
title: Python3 error while building on Alt-F
type: compile error
versions: Python 3.6
Added file: http://bugs.python.org/file46636/build.log

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