[issue19027] undefined symbol: _PyParser_Grammar

[Irit Katriel]

Irit Katriel  added the comment:

We no longer have GRAMMAR_H or _PyParser_Grammar in the code.

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 out of date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

___
Python tracker 

___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

[issue19027] undefined symbol: _PyParser_Grammar

[Martin Panter]

Martin Panter added the comment:

The same $(GRAMMAR_H) dependency and touch command still exists today, so I 
suspect this is still valid (though I didn’t try to reproduce it). I think we 
need to figure out if you can write a proper makefile rule that handles a 
single command that updates two targets at once.

FWIW I don’t think “make touch” will currently help on Python 2, because it 
only affects two files that are generated by pgen (see also my comment in Issue 
19142).

--
nosy: +martin.panter
stage:  -> needs patch

___
Python tracker 

___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

[issue19027] undefined symbol: _PyParser_Grammar

[Ned Deily]

Changes by Ned Deily n...@acm.org:


--
components: +Build
nosy: +ned.deily
versions: +Python 3.3, Python 3.4

___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue19027
___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

[issue19027] undefined symbol: _PyParser_Grammar

[Ned Deily]

Ned Deily added the comment:

It looks like this was caused by the changes for Issue14321 to not run pgen for 
cross builds.

--
nosy: +doko

___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue19027
___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

[issue19027] undefined symbol: _PyParser_Grammar

[Ned Deily]

Ned Deily added the comment:

BTW, this can be worked around (for non cross-builds at least) by running make 
touch on the source directory, e.g.:

make -C python/src -f python/build/Makefile touch

But it should be fixed.  Doko?

--

___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue19027
___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

[issue19027] undefined symbol: _PyParser_Grammar

[Armin Rigo]

New submission from Armin Rigo:

It is possible to get the working copy of Python 2.7 in a state such that any 
attempt to do make ends with the error shown in the title.  The working copy 
is perfectly valid; it is a matter of getting the wrong timestamps on the files.

(Despite the error message, this is not directly related to issue10013 or make 
-j.)

I didn't try Python 3.x, but the same issue might apply.

How to reproduce:

- get your checkout, let's say in python/src/

- go to your build directory, say python/build/, and run ../src/configure; 
make.

- then, in the src dir, give Include/graminit.h a more recent timestamp than 
Python/graminit.c, for example by saying touch Include/graminit.h (this is 
the crux: a common mercurial checkout will order them the other way, just 
because of alphabetical ordering).

- remove your python/build/ directory completely, create it anew, and run again 
../src/configure; make.

The cause of the message is that the Makefile rule for $(GRAMMAR_C) runs, 
because the GRAMMAR_H file is more recent; but the GRAMMAR_H rule does nothing, 
because the latter is already up-to-date.  So the only thing that runs is 
touch $(GRAMMAR_C).  But this creates an empty file build/Python/graminit.c!

--
components: Interpreter Core
messages: 197797
nosy: arigo
priority: normal
severity: normal
status: open
title: undefined symbol: _PyParser_Grammar
type: compile error
versions: Python 2.7

___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue19027
___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

[issue19027] undefined symbol: _PyParser_Grammar

[Arfrever Frehtes Taifersar Arahesis]

Changes by Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com:


--
nosy: +Arfrever

___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue19027
___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com