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From d98739ceaac1c477879b9c4fba89ea76dba2d539 Mon Sep 17 00:00:00 2001
From: axxel <awagger@gmail.com>
Date: Sun, 22 Sep 2024 22:39:11 +0200
Subject: [PATCH] cmake: switch to c++-20 by default for the core library
I finally accept the incurred performance penalty from the position
independent DataMatrix detection by default.
This is finally fixing #386. It also (sufficiently) fixes #822 and thereby
supersedes #836.
---
CMakeLists.txt | 4 +++-
1 file changed, 3 insertions(+), 1 deletions(-)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index b602712d79..fee4c68cdc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -71,7 +71,9 @@ if(NOT ZXING_DEPENDENCIES IN_LIST ZXING_DEPENDENCIES_LIST)
endif()
if (NOT DEFINED CMAKE_CXX_STANDARD)
- set (CMAKE_CXX_STANDARD 17)
+ set (CMAKE_CXX_STANDARD 20)
+ # Allow the fallback to earlier versions if the compiler does not support it.
+ set(CMAKE_CXX_STANDARD_REQUIRED OFF)
endif()
if (NOT DEFINED CMAKE_CXX_EXTENSIONS)
set (CMAKE_CXX_EXTENSIONS OFF)
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