* python 3.9 package leaks CFLAGS into user packages via sysconfig
@ 2021-12-28 1:27 Matthias Koeppe
2021-12-28 2:19 ` Marco Atzeri
2021-12-31 19:33 ` Matthias Koeppe
0 siblings, 2 replies; 5+ messages in thread
From: Matthias Koeppe @ 2021-12-28 1:27 UTC (permalink / raw)
To: cygwin
$ python3.9 -m sysconfig | grep CFLAGS
CFLAGS = "-Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall
-ggdb -O2 -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2
-fstack-protector-strong --param=ssp-buffer-size=4 -DOPENSSL_NO_SSL3=1
-I/usr/include/uuid/
-fdebug-prefix-map=/pub/devel/python/python39/python39-3.9.9-1.x86_64/build=/usr/src/debug/python39-3.9.9-1
-fdebug-prefix-map=/pub/devel/python/python39/python39-3.9.9-1.x86_64/src/Python-3.9.9=/usr/src/debug/python39-3.9.9-1
-ggdb -O2 -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2
-fstack-protector-strong --param=ssp-buffer-size=4 -DOPENSSL_NO_SSL3=1
-I/usr/include/uuid/
-fdebug-prefix-map=/pub/devel/python/python39/python39-3.9.9-1.x86_64/build=/usr/src/debug/python39-3.9.9-1
-fdebug-prefix-map=/pub/devel/python/python39/python39-3.9.9-1.x86_64/src/Python-3.9.9=/usr/src/debug/python39-3.9.9-1"
These flags will end up in builds of user Python packages with extensions
via sysconfig/distutils.
This should be fixed by putting the necessary flags for the Python build
into CFLAGS_NODIST instead -- see similar fix for Homebrew's packaging of
python3 in https://github.com/Homebrew/homebrew-core/pull/68528
Reference: https://trac.sagemath.org/ticket/33078
--
Dr. Matthias Koeppe . . . . . . . . http://www.math.ucdavis.edu/~mkoeppe
Professor of Mathematics
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: python 3.9 package leaks CFLAGS into user packages via sysconfig
2021-12-28 1:27 python 3.9 package leaks CFLAGS into user packages via sysconfig Matthias Koeppe
@ 2021-12-28 2:19 ` Marco Atzeri
2021-12-28 15:16 ` Marco Atzeri
2021-12-31 19:33 ` Matthias Koeppe
1 sibling, 1 reply; 5+ messages in thread
From: Marco Atzeri @ 2021-12-28 2:19 UTC (permalink / raw)
To: cygwin
On 28.12.2021 02:27, Matthias Koeppe wrote:
> $ python3.9 -m sysconfig | grep CFLAGS
> CFLAGS = "-Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall
> -ggdb -O2 -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2
> -fstack-protector-strong --param=ssp-buffer-size=4 -DOPENSSL_NO_SSL3=1
> -I/usr/include/uuid/
> -fdebug-prefix-map=/pub/devel/python/python39/python39-3.9.9-1.x86_64/build=/usr/src/debug/python39-3.9.9-1
> -fdebug-prefix-map=/pub/devel/python/python39/python39-3.9.9-1.x86_64/src/Python-3.9.9=/usr/src/debug/python39-3.9.9-1
> -ggdb -O2 -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2
> -fstack-protector-strong --param=ssp-buffer-size=4 -DOPENSSL_NO_SSL3=1
> -I/usr/include/uuid/
> -fdebug-prefix-map=/pub/devel/python/python39/python39-3.9.9-1.x86_64/build=/usr/src/debug/python39-3.9.9-1
> -fdebug-prefix-map=/pub/devel/python/python39/python39-3.9.9-1.x86_64/src/Python-3.9.9=/usr/src/debug/python39-3.9.9-1"
>
> These flags will end up in builds of user Python packages with extensions
> via sysconfig/distutils.
> This should be fixed by putting the necessary flags for the Python build
> into CFLAGS_NODIST instead -- see similar fix for Homebrew's packaging of
> python3 in https://github.com/Homebrew/homebrew-core/pull/68528
>
> Reference: https://trac.sagemath.org/ticket/33078
>
thanks Matthias
for the report and the reference.
It seems we have built all the pythons in the same way so
all versions always had it.
I will look to build a test version with the suggested change.
regards
Marco
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: python 3.9 package leaks CFLAGS into user packages via sysconfig
2021-12-28 2:19 ` Marco Atzeri
@ 2021-12-28 15:16 ` Marco Atzeri
0 siblings, 0 replies; 5+ messages in thread
From: Marco Atzeri @ 2021-12-28 15:16 UTC (permalink / raw)
To: cygwin
On 28.12.2021 03:19, Marco Atzeri wrote:
> On 28.12.2021 02:27, Matthias Koeppe wrote:
>> $ python3.9 -m sysconfig | grep CFLAGS
Hi Matthias,
can you please verify the test package
python39-3.9.9-3 (not the -2)
$ python3.9 -m sysconfig | grep CFLAGS
BASECFLAGS = "-Wno-unused-result -Wsign-compare"
CFLAGS = "-Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv
-O3 -Wall"
CFLAGSFORSHARED = ""
CFLAGS_ALIASING = ""
CONFIGURE_CFLAGS = ""
CONFIGURE_CFLAGS_NODIST = "-ggdb -O2 -pipe -Wall
-Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fstack-protector-strong
--param=ssp-buffer-size=4
-fdebug-prefix-map=/pub/devel/python/python39/python39-3.9.9-3.x86_64/build=/usr/src/debug/python39-3.9.9-3
-fdebug-prefix-map=/pub/devel/python/python39/python39-3.9.9-3.x86_64/src/Python-3.9.9=/usr/src/debug/python39-3.9.9-3
-DOPENSSL_NO_SSL3=1 -I/usr/include/uuid/ -std=c99 -Wextra
-Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers
-Werror=implicit-function-declaration -fvisibility=hidden"
....
Regards
Marco
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: python 3.9 package leaks CFLAGS into user packages via sysconfig
2021-12-28 1:27 python 3.9 package leaks CFLAGS into user packages via sysconfig Matthias Koeppe
2021-12-28 2:19 ` Marco Atzeri
@ 2021-12-31 19:33 ` Matthias Koeppe
2021-12-31 21:22 ` Marco Atzeri
1 sibling, 1 reply; 5+ messages in thread
From: Matthias Koeppe @ 2021-12-31 19:33 UTC (permalink / raw)
To: cygwin
On Mon, Dec 27, 2021 at 5:27 PM Matthias Koeppe <mkoeppe@math.ucdavis.edu>
wrote:
> $ python3.9 -m sysconfig | grep CFLAGS
> CFLAGS = "-Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall
> -ggdb -O2 -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2
> -fstack-protector-strong --param=ssp-buffer-size=4 -DOPENSSL_NO_SSL3=1
> -I/usr/include/uuid/
> -fdebug-prefix-map=/pub/devel/python/python39/python39-3.9.9-1.x86_64/build=/usr/src/debug/python39-3.9.9-1
> -fdebug-prefix-map=/pub/devel/python/python39/python39-3.9.9-1.x86_64/src/Python-3.9.9=/usr/src/debug/python39-3.9.9-1
> -ggdb -O2 -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2
> -fstack-protector-strong --param=ssp-buffer-size=4 -DOPENSSL_NO_SSL3=1
> -I/usr/include/uuid/
> -fdebug-prefix-map=/pub/devel/python/python39/python39-3.9.9-1.x86_64/build=/usr/src/debug/python39-3.9.9-1
> -fdebug-prefix-map=/pub/devel/python/python39/python39-3.9.9-1.x86_64/src/Python-3.9.9=/usr/src/debug/python39-3.9.9-1"
>
> These flags will end up in builds of user Python packages with extensions
> via sysconfig/distutils.
> This should be fixed by putting the necessary flags for the Python build
> into CFLAGS_NODIST instead [...]
>
Thanks, Marco, for the python-3.9.9-3 test package.
It has been reported to work well for us (
https://trac.sagemath.org/ticket/33078#comment:34), solving the reported
problem.
Matthias
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: python 3.9 package leaks CFLAGS into user packages via sysconfig
2021-12-31 19:33 ` Matthias Koeppe
@ 2021-12-31 21:22 ` Marco Atzeri
0 siblings, 0 replies; 5+ messages in thread
From: Marco Atzeri @ 2021-12-31 21:22 UTC (permalink / raw)
To: cygwin
On 31.12.2021 20:33, Matthias Koeppe wrote:
> On Mon, Dec 27, 2021 at 5:27 PM Matthias Koeppe <mkoeppe@math.ucdavis.edu>
> wrote:
>
>> $ python3.9 -m sysconfig | grep CFLAGS
>> CFLAGS = "-Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall
..
>>
>> These flags will end up in builds of user Python packages with extensions
>> via sysconfig/distutils.
>> This should be fixed by putting the necessary flags for the Python build
>> into CFLAGS_NODIST instead [...]
>>
>
> Thanks, Marco, for the python-3.9.9-3 test package.
> It has been reported to work well for us (
> https://trac.sagemath.org/ticket/33078#comment:34), solving the reported
> problem.
>
> Matthias
>
Thanks Matthias
for the testing.
I expect to promote it from test to current in few days.
Regards
Marco
^ permalink raw reply [flat|nested] 5+ messages in thread
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2021-12-28 1:27 python 3.9 package leaks CFLAGS into user packages via sysconfig Matthias Koeppe
2021-12-28 2:19 ` Marco Atzeri
2021-12-28 15:16 ` Marco Atzeri
2021-12-31 19:33 ` Matthias Koeppe
2021-12-31 21:22 ` Marco Atzeri
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