From 935c43e88fc33217e2ed8436e5c4d6f4b5506e5f Mon Sep 17 00:00:00 2001
From: "E.T" <tamas@eisenberger.hu>
Date: Sun, 31 Dec 2023 16:36:19 +0100
Subject: [PATCH] Gcc version warning (#1698)

* Compiler warning
* Fix warning message
---
 CMakeLists.txt          | 2 ++
 firmware/CMakeLists.txt | 9 +++++++++
 2 files changed, 11 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5d49cb2f8..2804f2857 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,6 +25,8 @@ set(CMAKE_TOOLCHAIN_FILE ${CMAKE_CURRENT_LIST_DIR}/firmware/toolchain-arm-cortex
 
 project(portapack-h1)
 
+set(EXPECTED_GCC_VERSION "9.2.1")
+
 set(VERSION "$ENV{VERSION_STRING}")
 if ("$ENV{VERSION_STRING}" STREQUAL "")
 	execute_process(
diff --git a/firmware/CMakeLists.txt b/firmware/CMakeLists.txt
index 1d34e960d..3064ed9f7 100644
--- a/firmware/CMakeLists.txt
+++ b/firmware/CMakeLists.txt
@@ -52,6 +52,15 @@ add_custom_target(
 	DEPENDS ${FIRMWARE_FILENAME} ${HACKRF_FIRMWARE_DFU_FILENAME}
 )
 
+if(NOT ${CMAKE_CXX_COMPILER_VERSION} VERSION_EQUAL ${EXPECTED_GCC_VERSION})
+	set(COMPILER_MISMATCH_MESSAGE "WARNING: Compiler version mismatch, please use the official compiler version ${EXPECTED_GCC_VERSION} when sharing builds! Current compiler version: ${CMAKE_CXX_COMPILER_VERSION}")
+	message(${COMPILER_MISMATCH_MESSAGE})
+	add_custom_command(
+		TARGET firmware POST_BUILD
+		COMMAND echo ${COMPILER_MISMATCH_MESSAGE}
+		VERBATIM)
+endif()
+
 add_custom_target(
 	program
 	COMMAND ${PROJECT_SOURCE_DIR}/tools/enter_mode.sh hackrf