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-rw-r--r--debian/patches/gui-c++20.patch14
1 files changed, 14 insertions, 0 deletions
diff --git a/debian/patches/gui-c++20.patch b/debian/patches/gui-c++20.patch
new file mode 100644
index 0000000..397d0e0
--- /dev/null
+++ b/debian/patches/gui-c++20.patch
@@ -0,0 +1,14 @@
+Description: Use c++20 to build GUI
+Fixes "src/include/open-axiom/vm:177:21: error: ‘std::same_as’ has not been declared"
+
+Index: open-axiom-debian/src/gui/gui.pro.in
+===================================================================
+--- open-axiom-debian.orig/src/gui/gui.pro.in
++++ open-axiom-debian/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@