custom-board-bundle-sample-fork-of-rusefi/firmware/version_check.h

// This file asserts that the compiler is appropriate for rusEFI use.

#pragma once

// non-MCU builds are significantly more tolerant
#if EFI_PROD_CODE

static constexpr auto gccVersion = (__GNUC__ * 100) + (__GNUC_MINOR__ * 10) + ( __GNUC_PATCHLEVEL__ );

// Firmware builds require at least GCC 9.3.1
static_assert(gccVersion >= 931, "GCC compiler >= 9.3.1 required");

static_assert(gccVersion < 1000, "GCC10 not supported see https://github.com/rusefi/rusefi/labels/Gcc10");

#endif