Specifying Language with Internal Dependencies

[phillipjohnston]

I have an internal dep which provides some compiler arguments. However, they should only be used with .cpp files and produce warning when applied to .c files.

Is there a good way for specifying a language with an internal dependency? I don't want to add to the global project options because you should only use the flags if you're consuming that particular dependency. If you set the flags and don't use the dependency, the build will fail.

libcxxabi_dep = declare_dependency(
	include_directories: include_directories('include/c++abi', is_system: true),
	link_with: libcxxabi,
	compile_args: stdlib_compiler_flags + cpp_stdlib_compiler_flags,
	link_args: stdlib_link_flags
)

Warning:

[656/1262] Compiling C object 'src/pro...rtos_src_portable_MemMang_heap_3.c.o'.
cc1: warning: command line option '-nostdinc++' is valid for C++/ObjC++ but not for C

[phillipjohnston]

dependency() has a language option, and build targets have X_args options, but declare_dependency() seems to throw both of those models to the wind :).

[phillipjohnston]

(Ping)

[phillipjohnston]

Closing due to lack of interest.

[dcbaker]

This is on my todo list, it's just a long todo list

[phillipjohnston]

Oh, that's great!

[dcbaker]

#14784 and #14199 are both groundwork on my way to do this, because this is currently one of my main interests in solving.