Hello,
currently, we set the CMAKE_BUILD_TYPE to "None". The reason for this is that
CMake has CMAKE_C{,XX}_FLAGS variables where the corresponding build flags can
be passed. When the build type is "None", only these flags are used. If the
build type is however set to anything else, then the flags from CMAKE_C{,XX}
_FLAGS_$TYPE will be appended to the former.
This seems to make sense because the additional variables contain flags that we
don't want. CMAKE_CXX_FLAGS_RELEASE, for example, defaults to "-O3 -DNDEBUG"
and we don't want the -O3 flag.
But the "None" type is not really supported and some projects (e. g. LLVM)
even forbid it. Apart from that projects might add additional flags to these
variables. They could for example add defines that enable some debug code only
in debug builds.
It would therefore make sense to set the build type to the right value so that
these flags can be included. In that case we would also have to set the default
values of all CMAKE_C{,XX}_FLAGS_$TYPE variables to sensible values that do
not include any -O flags. CMAKE_CXX_FLAGS_RELEASE would for example only
contain "-DNDEBUG".
Bernd Steinhauser proposed that we should set the CMake build type based on a
build_option. What do you think?
Ole
signature.asc
Description: This is a digitally signed message part.
_______________________________________________ Exherbo-dev mailing list [email protected] http://lists.exherbo.org/mailman/listinfo/exherbo-dev
