[debian-mysql] Bug#968891: mariadb-10.4: FTBFS on sh4: Performing Test have_C__Wdeclaration_after_statement - Failed

[Otto Kekäläinen]

Source: mariadb-10.4
Version: 1:10.4.13-1~exp1
Severity: important
Tags: upstream
Justification: fails to build from source (but built successfully in the past)
User: debian-superh at lists.debian.org
Usertags: sh4

The MariaDB Server package was building fine on sh4 in version
1:10.4.12-1~exp3. However the next upload of 1:10.4.13-1~exp1
regressed it.

Before:
https://buildd.debian.org/status/fetch.php?pkg=mariadb-10.4&arch=sh4&ver=1%3A10.4.12-1%7Eexp3&stamp=1586540743&raw=0

After:
https://buildd.debian.org/status/fetch.php?pkg=mariadb-10.4&arch=sh4&ver=1%3A10.4.13-1%7Eexp1&stamp=1593419362&raw=0

The error is in the configure stage that yields:

*****
CMake Error: Generator: execution of make failed. Make command was:
/usr/bin/gmake cmTC_6b47d/fast &&
-- Performing Test have_C__Wdeclaration_after_statement - Failed
*****

This did not happen in the build of the previous version.

Help from sh4 experts on why this happens on sh4 but not other
platforms would be appreciated.

Contributions are welcome in this bug report on via Salsa:
https://wiki.debian.org/Teams/MySQL/patches