Is GCC 4.8.5 an ok version?

User Support
1

While a bit old, I was wondering if the 4.8.5 version of GCC would be an ok compiler for OpenMC or if there would be some limitations.

2

OpenMC requires a C++14 compiler, and gcc 4.8 doesn’t implement enough of the C++14 standard to be used. I believe you’ll need at least gcc 4.9 or 5 to compile OpenMC.

3

Thanks, I ended up installing GCC 8, which has C++14 support.

Do you know if I have to enable C++14 manually or is it automatically added when I install GCC 8.x? Thanks.

4

No, you don’t need to do anything special. When you run cmake/make to build OpenMC, it will enable the appropriate flags for C++14 support.