From 467b6fb9eeb12d064c1f6fa4d7f87638e49685ca Mon Sep 17 00:00:00 2001
From: Igor Pashev <pashev.igor@gmail.com>
Date: Thu, 27 Oct 2022 11:31:14 +0200
Subject: Use c++20 to build GUI (#30)
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Fixes error:
```
g++ -c -pipe -std=c++11 -Wno-mismatched-tags -Wno-string-plus-int -O2 -Wall -Wextra -D_REENTRANT -fPIC -DQT_NO_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I. -I../../x86_64-pc-linux-gnu/include -I../../../src/gui -I../../../src/include -I../../config -I/usr/include/x86_64-linux-gnu/qt5 -I/usr/include/x86_64-linux-gnu/qt5/QtWidgets -I/usr/include/x86_64-linux-gnu/qt5/QtGui -I/usr/include/x86_64-linux-gnu/qt5/QtCore -I. -I/usr/lib/x86_64-linux-gnu/qt5/mkspecs/linux-g++ -o server.o ../../../src/gui/server.cc
In file included from ../../../src/include/open-axiom/Lisp:43,
from ../../../src/gui/server.h:38,
from ../../../src/gui/server.cc:33:
../../../src/include/open-axiom/vm:177:21: error: ‘std::same_as’ has not been declared
177 | template<std::same_as<bool> T>
```
---
src/gui/gui.pro.in | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'src')
diff --git a/src/gui/gui.pro.in b/src/gui/gui.pro.in
index ca28e582..16c42819 100644
--- a/src/gui/gui.pro.in
+++ b/src/gui/gui.pro.in
@@ -60,5 +60,5 @@ LIBS += $$OA_LIB
## C++ compiler
QMAKE_CXX = @CXX@
-QMAKE_CXXFLAGS += -std=c++11 @oa_extra_cxxflags@
+QMAKE_CXXFLAGS += -std=c++20 @oa_extra_cxxflags@
QMAKE_LINK = @CXX@
--
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