Enable hardening compilation flags for the compiled 3rdparty deps for increased security.
These flags in particular:
-Wl,--dynamicbase -Wl,--nxcompat -Wl,--disable-auto-image-base -Wl,--high-entropy-va -Wl,--image-base,0x14000000
For Qt, we can set this environment variable:
QMAKE_LFLAGS=-Wl,--dynamicbase -Wl,--nxcompat -Wl,--disable-auto-image-base -Wl,--high-entropy-va -Wl,--image-base,0x14000000
For other deps, we should set the LDFLAGS accordingly