Python 3.10 and termux

vladko 312

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Mar 4, 2022, 3:47:11 AM3/4/22

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I used mod_wsgi 4.8 with python 3.9 in termux, but i switched to python 3.10 and it is no longer possible to compile it, as python removed some header files that are required. I tried to compile mod_wsgi 4.9 and a development version, but both failed with the same error:

/data/data/com.termux/files/usr/share/apr-1/build/libtool --silent --mode=link aarch64-linux-android-clang -L/data/data/com.termux/files/usr/lib -Wl,-rpath=/data/data/com.termux/files/usr/lib -fopenmp -static-openmp -Wl,--enable-new-dtags -Wl,--as-needed -Wl,-z,relro,-z,now -Wl,--no-as-needed,-landroid-support,--as-needed -lapr-1 -laprutil-1 -L/home/builder/.termux-build/apache2/src/libdummy -Wl,--as-needed,-ldummy-mod_cache,-ldummy-mod_dav,-ldummy-mod_proxy,-ldummy-mod_session,-ldummy-mod_watchdog -Wl,-rpath=/data/data/com.termux/files/usr/libexec/apache2 -o src/server/mod_wsgi.la -rpath /data/data/com.termux/files/usr/libexec/apache2 -module -avoid-version src/server/wsgi_validate.lo src/server/wsgi_thread.lo src/server/wsgi_stream.lo src/server/wsgi_server.lo src/server/wsgi_restrict.lo src/server/wsgi_metrics.lo src/server/wsgi_memory.lo src/server/wsgi_logger.lo src/server/wsgi_interp.lo src/server/wsgi_daemon.lo src/server/wsgi_convert.lo src/server/wsgi_buckets.lo src/server/wsgi_apache.lo src/server/mod_wsgi.lo -L/data/data/com.termux/files/usr/lib -L/data/data/com.termux/files/usr/lib/python3.10/config -lpython3.10 -lcrypt -ldl -lm -lm
ld.lld: error: unable to find library -ldummy-mod_cache
ld.lld: error: unable to find library -ldummy-mod_dav
ld.lld: error: unable to find library -ldummy-mod_proxy
ld.lld: error: unable to find library -ldummy-mod_session
ld.lld: error: unable to find library -ldummy-mod_watchdog
clang-13: error: linker command failed with exit code 1 (use -v to see invocation)
apxs:Error: Command failed with rc=65536

How to fix it? I use apache 1:2.4.52-2 and termux 0.101

Graham Dumpleton

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Mar 4, 2022, 3:51:08 AM3/4/22

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Looks more like there is something wrong with your Apache installation.

Instead of using configure/make/make install method of building mod_wsgi, try using the pip install method.

See:

https://pypi.org/project/mod-wsgi/

This may not help if is apxs from Apache which is generating bogus output.

What Apache bistro are you using? A system provided package, or some third party one?

Graham

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vladko 312

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Mar 4, 2022, 4:01:19 AM3/4/22

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I use apache from termux repos. Previously, everything worked (before i upgraded all packets). I tried using python-provided mod_wsgi but it never worked. Now it gives me this error:

CANNOT LINK EXECUTABLE "/data/data/com.termux/files/usr/bin/httpd": cannot locate symbol "apr_procattr_limit_set" referenced by "/data/data/com.termux/files/usr/bin/httpd"...
Aborted
Seems like it is unrelated to mod_wsgi, but i can't fix it either

пятница, 4 марта 2022 г. в 11:51:08 UTC+3, Graham Dumpleton:

Graham Dumpleton

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Mar 4, 2022, 4:04:04 AM3/4/22

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Another indication that it seems the Apache installation seems to be broken. Does Apache even start by itself without mod_wsgi being configured?

To view this discussion on the web visit https://groups.google.com/d/msgid/modwsgi/c97d751f-061d-42a0-be82-9c5c47a3a92cn%40googlegroups.com.

vladko 312

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Mar 4, 2022, 4:15:38 AM3/4/22

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My bad, it was an old apr package. After update to 1.7.0-6 (apr-util 1.6.1-5 was already newest) the problem is gone. Now it is a mod_wsgi problem:

httpd: Syntax error on line 206 of /data/data/com.termux/files/usr/etc/apache2/httpd.conf: Cannot load /data/data/com.termux/files/usr/lib/python3.10/site-packages/mod_wsgi-4.9.1.dev1-py3.10-linux-aarch64.egg/mod_wsgi/server/mod_wsgi-py310.cpython-310.so into server: dlopen failed: cannot locate symbol "apr_pool_cleanup_null" referenced by "/data/data/com.termux/files/usr/lib/python3.10/site-packages/mod_wsgi-4.9.1.dev1-py3.10-linux-aarch64.egg/mod_wsgi/server/mod_wsgi-py310.cpython-310.so"...

Without mod_wsgi it loads base config successfully and fails on my flask config. Without flask config everything works.

пятница, 4 марта 2022 г. в 12:04:04 UTC+3, Graham Dumpleton:

Graham Dumpleton

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Mar 4, 2022, 4:18:35 AM3/4/22

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Ensure you use:

pip install --no-cache-dir mod_wsgi

so it doesn't use any prior build outputs.

If still have issue, ensure that the apache-dev package is the same version as main apache binary package. The error can indicate they are for different versions and headers files don't match apache libraries.

Graham

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Graham Dumpleton

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Mar 4, 2022, 7:34:38 AM3/4/22

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Found them in usr/share/apache

Will try to comment them and try again

пятница, 4 марта 2022 г. в 14:47:24 UTC+3, vladko 312:

vladko 312

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Mar 4, 2022, 8:43:06 AM3/4/22

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It worked! I removed all -ldummy-xxx from both usr/share/apache2/build/config* and it allowed me to compile the module! The module works and I was able to use my Flask app again! Thank you for your help!

пятница, 4 марта 2022 г. в 15:34:38 UTC+3, vladko 312:

Graham Dumpleton

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Mar 4, 2022, 1:37:56 PM3/4/22

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What was in the Makefile left in the mod_wsgi source directory after running configure?

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vladko 312

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Mar 4, 2022, 2:56:36 PM3/4/22

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I wasn't changing the makefile, as there was nothing related to those libs in it

пт, 4 мар. 2022 г. в 21:37, Graham Dumpleton <graham.d...@gmail.com>:

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Graham Dumpleton

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Mar 4, 2022, 3:02:53 PM3/4/22

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If the options were added internally by apxs when it was run to compile/link the module, again reinforces that the Apache system packages for that platform are broken then. Anyway, at least you got it working.

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