chore!: drop support for Qt <5.12
BREAKING CHANGE: If there are references to stuff that's deprecated as of Qt 5.12, the compilation will fail. This means that support for versions below 5.12 is hereby dropped
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@ -1,4 +1,4 @@
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cmake_minimum_required(VERSION 3.9.4)
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cmake_minimum_required(VERSION 3.15) # minimum version required by QuaZip
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if(WIN32)
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# In Qt 5.1+ we have our own main() function, don't autolink to qtmain on Windows
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@ -34,14 +34,12 @@ set(CMAKE_C_STANDARD_REQUIRED true)
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set(CMAKE_CXX_STANDARD 11)
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set(CMAKE_C_STANDARD 11)
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include(GenerateExportHeader)
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set(CMAKE_CXX_FLAGS " -Wall -pedantic -Werror -Wno-deprecated-declarations -D_GLIBCXX_USE_CXX11_ABI=0 -fstack-protector-strong --param=ssp-buffer-size=4 -O3 -D_FORTIFY_SOURCE=2 ${CMAKE_CXX_FLAGS}")
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set(CMAKE_CXX_FLAGS " -Wall -pedantic -D_GLIBCXX_USE_CXX11_ABI=0 -fstack-protector-strong --param=ssp-buffer-size=4 -O3 -D_FORTIFY_SOURCE=2 ${CMAKE_CXX_FLAGS}")
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if(UNIX AND APPLE)
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set(CMAKE_CXX_FLAGS " -stdlib=libc++ ${CMAKE_CXX_FLAGS}")
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endif()
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set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -Werror=return-type")
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# Fix build with Qt 5.13
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DQT_NO_DEPRECATED_WARNINGS=Y")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DQT_DISABLE_DEPRECATED_BEFORE=0x050C00")
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option(ENABLE_LTO "Enable Link Time Optimization" off)
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