The zm-dependency-interface target sets compiler flags in a way suitable for external dependencies.
This means mainly to disable compile warnings since they concern upstream and not us.
-Wno-cast-function-type:
Signal handler code relies on this.
-Wno-type-limits:
Some of the color space conversion code in zm_image throws this warning. To not break anything let's ignore this warning for the time being.
Note that clang enables -Woverloaded-virtual with -Wextra. To not flood the GCC build log with warnings let's not enable this at the moment.
This will be done in a second step, when the currently throwing code will be cleaned up.
zm-compile-option-interface:
Use to set various compiler/linker flags
zm-feature-interface:
Use to set required compiler features.
See https://cmake.org/cmake/help/latest/prop_gbl/CMAKE_CXX_KNOWN_FEATURES.html
zm-warning-interface:
Use to set compiler warning flags. If need be a zm-no-warning-interface can be added which suppresses all warning for targets linked against it. Useful for in-tree dependencies from which we don't want compiler warnings.
zm-core-interface:
That's the interface one should normally link against to get all the options.
Peter Keresztes Schmidt
Isaac Connor
Peter Keresztes Schmidt
Andrew Bauer
hax0kartik
Andrew Bauer
Isaac Connor
Isaac Connor
Andrew Bauer
Kfir Itzhak