Bug #78687 MySQL 5.6.27 (GPL-2) build fails with: #error "Unsupported platform"
Submitted: 2 Oct 2015 20:19 Modified: 11 Nov 2019 16:39
Reporter: Alexander Power Email Updates:
Status: No Feedback Impact on me:
Category:MySQL Server Severity:S3 (Non-critical)
Version:5.6.27 OS:MacOS (OS X 10.5.8 (Leopard) on PPC G4)
Assigned to: CPU Architecture:Any

[2 Oct 2015 20:19] Alexander Power
Hello. I am currently running the GPL-2 licensed version of
MySQL, version 5.6.26, and have been able to compile and run MySQL 5.6 from source for all previous releases through this version. I should state up front that I have been running the database on an Apple PowerBook G4 with OS X 10.5.8 (Leopard). Unfortunately, I have not been able to build MySQL 5.6.27. Failure occurs about 25% of the way through the build. The build log contains the following message:

/mp2/local/var/macports/build/_mp2_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_databases_mysql56/mysql56/work/mysql-5.6.27/storage/innobase/include/os0sync.h:504:4: error: #error "Unsupported platform"

and a few lines later:

:info:build /mp2/local/var/macports/build/_mp2_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_databases_mysql56/mysql56/work/mysql-5.6.27/storage/innobase/include/sync0sync.ic:112: error: "os_atomic_clear" was not declared in this scope

Is MySQL still interested in supporting old Apple PPCs running OS X 10.5? If so, is there a designated place to send the full build log and work with a developer to fix this particular build? Any information would be greatly appreciated.  

I will attach the build log.

How to repeat:
To repeat, build MySQL 5.6.27 on a PowerBook G4 running OS X 10.5.8 (Leopard).  The failure occurs about 23% of the way into the build.
[2 Oct 2015 20:21] Alexander Power
MySQL 5.6.17 build log

Attachment: main.log (application/octet-stream, text), 525.92 KiB.

[2 Oct 2015 20:24] Alexander Power
Note: I am using MacPorts as a package manager, with base directory /mp2/local/ .
[19 Oct 2015 1:02] zhai weixiang
regression of this commit  to fix Bug #76135  ?

[27 Oct 2015 13:00] Kristyna Streitova
I can confirm that this issue breaks the build of mysql 5.5.46 for the following platforms:
- ppc
- ppc64
- s390
- s390x
- ia64

I expect the same result for mysql 5.6.27 too.

Is there any ETA on solving this issue? Thank you for any response.
[11 Oct 2019 16:39] MySQL Verification Team
Please check with latest releases.
[12 Nov 2019 1:00] Bugs System
No feedback was provided for this bug for over a month, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".
[8 Jun 2020 4:39] Christopher Chavez
See https://trac.macports.org/ticket/60400#comment:1 -- the "unsupported platform" error was still being observed with 5.6.47 on Mac OS X 10.5 PowerPC.

I am aware that MySQL 5.6 is unsupported on macOS as of 2018.
[16 Jul 2020 13:56] Christopher Chavez
MacPorts has resolved the issue by using a compiler with proper atomic operation support, which excludes the older GCC-based compilers provided by Xcode for PowerPC Macs.