Build fails on CentOS 7 due to gcc not running c99 mode

[Petrify]

Description

Running go build on a project using objectbox-go causes a compiler error when using gcc 4.8.5 on CentOS 7.

Basic info

• ObjectBox version: 1.2.0
• Reproducibility: always
• Device: VPS
• OS: CentOS 7

How to reproduce

Install gcc on CentOS yum install gcc Install Objectbox (I used the bash quick install script here) build a project that uses objectbox

Expected behavior

Project builds into executable

Logs, stack traces

# github.com/objectbox/objectbox-go/objectbox
/root/go/pkg/mod/github.com/objectbox/objectbox-go@v1.2.0/objectbox/c-arrays.go: In function 'freeCharArray':
/root/go/pkg/mod/github.com/objectbox/objectbox-go@v1.2.0/objectbox/c-arrays.go:32:5: error: 'for' loop initial declarations are only allowed in C99 mode
     for (size_t i = 0; i < size; i++) {
     ^
/root/go/pkg/mod/github.com/objectbox/objectbox-go@v1.2.0/objectbox/c-arrays.go:32:5: note: use option -std=c99 or -std=gnu99 to compile your code

[greenrobot-team]

Side note: apparently CentOS 7 end-of-life is 30 June 2024. https://www.centos.org/download/