Vasily Utkin
5a7fe687d8
Compiling C++ on various different platforms with as many out of tree dependencies as we have is volatile at best. In order to prevent a third party warning from ruining the build for people who don't care about third party warnings, we remove warnings-as-errors by default. They are still enabled by default on CI.
45 lines
1.1 KiB
Plaintext
45 lines
1.1 KiB
Plaintext
GCC_VERSION = $$system("g++ -dumpversion")
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greaterThan(GCC_VERSION, 6) {
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message('g++' version is above 6. Using regular g++.)
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}
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else {
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message('g++' version is not above 6. Attempting to use highest specific version.)
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system(g++-7 --version) {
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message('g++-7' found.)
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QMAKE_CXX = g++-7
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QMAKE_LINK = g++-7
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}
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system(g++-8 --version) {
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message('g++-8' found.)
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QMAKE_CXX = g++-8
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QMAKE_LINK = g++-8
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}
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system(g++-9 --version) {
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message('g++-9' found.)
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QMAKE_CXX = g++-9
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QMAKE_LINK = g++-9
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}
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}
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system("$$QMAKE_CXX --version")
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include(clang-gcc-common-switches.pri)
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QMAKE_CXXFLAGS += -Wpedantic
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warnings_as_errors {
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QMAKE_CXXFLAGS += -Werror
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}
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# GCC only switches
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QMAKE_CXXFLAGS += -Wduplicated-branches -Wduplicated-cond -Wlogical-op -Wrestrict -Wnull-dereference
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# Sign conversion warns on auto generated Qt MOC files.
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QMAKE_CXXFLAGS += -Wconversion -Wno-sign-conversion
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QMAKE_CXXFLAGS += -Wzero-as-null-pointer-constant
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# Qmake will append this even though higher optimization levels are used.
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QMAKE_LFLAGS_RELEASE -= -Wl,-O1
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QMAKE_LFLAGS += -Wl,-O3 -O3
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