problem when trying to build atlas from source

[bugproxy]

issue when trying to build atlas (libatlas.so) from sources.

---Steps to Reproduce---
 apt-get source atlas, extract, follow README.Debian

When running on EC12:
cc1: error: hardware vector support not available on zEC12
make[4]: *** [IRunCComp] Error 1
....
dpkg-buildpackage: error: debian/rules build subprocess returned exit status 2

When running on z13 or z14:
/root/atlas-3.10.3/build/..//include/atlas_simd.h:385:29: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'double'
    #define ATL_VTYPE vector double
....
gcc: error: liblapack_atlas.a: No such file or directory
gcc: error: libf77blas.a: No such file or directory

Linux weather 4.15.0-38-generic #41-Ubuntu SMP Wed Oct 10 10:57:21 UTC 2018 s390x s390x s390x GNU/Linux

Machine Type = EC12 and z14

[Dimitri John Ledkov (xnox)]

Please attach a full build log, if you can.

I will schedule a rebuild of this package, to see if I can reproduce the issue on our infrastructure.

[Dimitri John Ledkov (xnox)]

https://launchpadlibrarian.net/399145889/buildlog_ubuntu-disco-s390x.atlas_3.10.3-7build1_BUILDING.txt.gz

I did a rebuild of it. It is "successful" but, it does smell very fishy... given the number of times it tries to use -mtune options for like arm or sparc.

[Dimitri John Ledkov (xnox)]

However, I do not have the error messages that are reported in the description of the bug report, and the two mentioned libraries do get built and are shipped.

-rw-r--r-- root/root 1036052 2018-07-17 12:19 ./usr/lib/s390x-linux-gnu/liblapack_atlas.a
lrwxrwxrwx root/root 0 2018-07-17 12:19 ./usr/lib/s390x-linux-gnu/liblapack_atlas.so -> liblapack_atlas.so.3.10.3
-rw-r--r-- root/root 543616 2018-07-17 12:19 ./usr/lib/s390x-linux-gnu/libf77blas.a
lrwxrwxrwx root/root 0 2018-07-17 12:19 ./usr/lib/s390x-linux-gnu/libf77blas.so -> libf77blas.so.3.10.3

Please provide the full build log.

[bugproxy (bugproxy)]

------- Comment on attachment From <email address hidden> 2019-01-16 08:15 EDT-------

Sorry for the late response.
I did a apt-get source atlas and build via DEB_BUILD_OPTIONS=custom dpkg-buildpackage -uc -b as described in the README.Debian
I found logfiles in ~/atlas-3.10.3/build/bin/INSTALL_LOG
I ran on a z14 system

[Dimitri John Ledkov (xnox)]

DEB_BUILD_OPTIONS=custom builds are not supported, and one has to investigate manually why tuning to a custom current build-time machine fails.

Also DEB_BUILD_OPTIONS=custom packages are not suitable to be shipped in the Ubuntu archive, as they do not gain unique arch qualified names to be coinstallable with stock packages.

[bugproxy (bugproxy)]

------- Comment From <email address hidden> 2019-02-20 03:52 EDT-------
*** This bug has been marked as a duplicate of bug 173368 ***

------- Comment From <email address hidden> 2019-02-20 03:53 EDT-------
This problem will be tracked via the LP

https://bugs.launchpad.net/ubuntu/+source/atlas/+bug/1814796.

To be closed here......