Makefile, zasm.pro: lifted requirement to c++20 (though c++17 will also do until now)

Author: Megatokio

Makefile

@@ -16,7 +16,7 @@ STRIP       = strip
 DEFINES     = -DNDEBUG -DRELEASE
 
 CFLAGS      = -pipe -Os -Wall -W -fPIE $(DEFINES)
-CXXFLAGS    = $(CFLAGS) -Wno-multichar -std=c++11
+CXXFLAGS    = $(CFLAGS) -Wno-multichar -std=c++20
 INCPATH     = -I. -ISource -ILibraries
 ifeq ($(OS),Windows_NT)
 	# static linking for Cygwin:

zasm.pro

@@ -11,7 +11,7 @@ QT       -= gui
 
 CONFIG += console
 CONFIG -= app_bundle
-CONFIG += c++11
+CONFIG += c++20
 CONFIG += precompiled_header
 CONFIG(release,debug|release) { DEFINES += NDEBUG RELEASE } # ATTN: curly brace must start in same line!
 CONFIG(debug,debug|release) { DEFINES += DEBUG } # ATTN: curly brace must start in same line!