| Bug #83994 | MySQL Server: Variable length array in XCom causing build error | ||
|---|---|---|---|
| Submitted: | 28 Nov 2016 16:36 | Modified: | 31 Mar 2017 19:46 |
| Reporter: | Filipe Campos | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: Group Replication | Severity: | S3 (Non-critical) |
| Version: | 5.7.17 | OS: | Any |
| Assigned to: | CPU Architecture: | Any | |
[31 Mar 2017 19:46]
Daniel Price
Posted by developer: Fixed as of the upcoming 5.7.18, 8.0.1 release, and here's the changelog entry: Compiling MySQL 5.7.17 failed with a variable length array error.
Description: With the -Wlva option enabled, the compilation of MySQL Server 5.7.17 fails with the following error: .../rapid/plugin/group_replication/libmysqlgcs/src/bindings/xcom/xcom/sock_probe.c:73:2: error: ISO C90 forbids variable length array 'name' [-Werror=vla] char name[MAXHOSTNAMELEN+1]; ^~~~ This error is generated by the following code which defines MAXHOSTNAMELEN as a call to sysconf(_SC_HOST_NAME_MAX) when _SC_HOST_NAME_MAX is defined. /* Required for FreeBSD, NetBSD and MacOS */ #ifndef MAXHOSTNAMELEN #ifdef _SC_HOST_NAME_MAX #define MAXHOSTNAMELEN sysconf(_SC_HOST_NAME_MAX) #else #define MAXHOSTNAMELEN 1024 #endif #endif How to repeat: -Compile MySQL Server 5.7.17. Suggested fix: -Port the patch that already exists in the original product and fixes this issue to mysql-5.7.