Jakub Jelinek wrote: > On Wed, May 10, 2023 at 12:09:10AM +0200, Björn Persson wrote: > > Florian Weimer wrote: > > > I am going to explore a way to land -Werror=implicit-int > > > -Werror=implicit-function-declaration among the default compiler flags. > > > There's a bit of an issue because the C++ front end warns on > > > those flags, so we need another -specs= kludge that is incompatible with > > > Clang. > > > > It sounds like those parameters should be added only to CFLAGS, not to > > CXXFLAGS. > > > > __global_compiler_flags already contains things that cause warnings > > from the Ada and Fortran compilers. The Ada packages get the warning > > “'-Werror=' argument '-Werror=format-security' is not valid for Ada” > > over and over. It doesn't break any builds but it's annoying noise in > > the build logs. > > GCC 13 has a solution for that, one can add > -Wno-complain-wrong-lang > to > -Werror=format-security > etc. and avoid such warnings (that some compiler option is only appropriate > for a subset of GCC languages and it is compiling some other language). Thanks. That's an acceptable workaround, and seems to work as advertised. I may add it to build_adaflags if a central solution won't be accepted. It would still be better to use parameters only where they are meaningful. Longer command lines make troubleshooting more difficult. Björn Persson
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