fixed `ARCH` detection in `cmake`

CMakeLists.txt

@@ -2,6 +2,12 @@ cmake_minimum_required(VERSION 3.14...3.25)
 
 set (CXX_STANDARD 23)
 
+project(
+	qr
+	VERSION 1.1.0
+	LANGUAGES CXX
+)
+
 if (DEFINED ENV{ARCH})
 	set(ARCH $ENV{ARCH})
 else()
@@ -10,12 +16,6 @@ endif()
 
 set(EXE_NAME "qr_${CMAKE_PROJECT_VERSION}-${ARCH}")
 
-project(
-	qr
-	VERSION 1.1.0
-	LANGUAGES CXX
-)
-
 message(STATUS "ARCH:: ${ARCH}")
 
 configure_file(main.cpp main_substitute.cpp)