Vasily
799bc7d429
It is unknown if gcc uses the O3 optimization levels passed to the compilation of individual cpp files, or if it needs O3 passed to the linker as well. The hash of the final binaries are different, thus O3 is passed to the linker.
43 lines
1.1 KiB
Plaintext
43 lines
1.1 KiB
Plaintext
GCC_VERSION = $$system("g++ -dumpversion")
|
|
greaterThan(GCC_VERSION, 6) {
|
|
message('g++' version is above 6. Using regular g++.)
|
|
}
|
|
else {
|
|
message('g++' version is not above 6. Attempting to use highest specific version.)
|
|
system(g++-7 --version) {
|
|
message('g++-7' found.)
|
|
QMAKE_CXX = g++-7
|
|
QMAKE_LINK = g++-7
|
|
}
|
|
system(g++-8 --version) {
|
|
message('g++-8' found.)
|
|
QMAKE_CXX = g++-8
|
|
QMAKE_LINK = g++-8
|
|
}
|
|
system(g++-9 --version) {
|
|
message('g++-9' found.)
|
|
QMAKE_CXX = g++-9
|
|
QMAKE_LINK = g++-9
|
|
}
|
|
}
|
|
|
|
system("$$QMAKE_CXX --version")
|
|
|
|
include(clang-gcc-common-switches.pri)
|
|
|
|
QMAKE_CXXFLAGS += -Wpedantic
|
|
|
|
QMAKE_CXXFLAGS += -Werror
|
|
|
|
# GCC only switches
|
|
QMAKE_CXXFLAGS += -Wduplicated-branches -Wduplicated-cond -Wlogical-op -Wrestrict -Wnull-dereference
|
|
|
|
# Sign conversion warns on auto generated Qt MOC files.
|
|
QMAKE_CXXFLAGS += -Wconversion -Wno-sign-conversion
|
|
|
|
QMAKE_CXXFLAGS += -Wzero-as-null-pointer-constant
|
|
|
|
# Qmake will append this even though higher optimization levels are used.
|
|
QMAKE_LFLAGS_RELEASE -= -Wl,-O1
|
|
QMAKE_LFLAGS += -Wl,-O3
|