Override_options not replacing cpp_link_args as expected in Meson, causing linker flags to be added instead of replaced

[manipuladordedados]

Hi,
I’ve encountered an issue when using override_options with cpp_link_args in Meson. It appears that cpp_link_args doesn’t replace existing linker flags, but instead adds them. This is problematic for targets like shared_library().
I attempted to filter out -static using the following approach:

cpp_link_args_without_static = []
foreach e : get_option('cpp_link_args')
    if e not in ['-static']
        cpp_link_args_without_static += e
    endif
endforeach

However, even with override_options to adjust cpp_link_args, Meson still appends rather than removing it, which causes compilation issues.

[dcbaker]

How are you using those flags after the fact? I would expect:

cpp_link_args_without_static = []
foreach e : get_option('cpp_link_args')
    if e not in ['-static']
        cpp_link_args_without_static += e
    endif
endforeach

target = library(
   'foo',
   'foo.cpp',
   cpp_link_args : ['-ffake'],
   override_options : {'cpp_link_args' : cpp_link_args_without_static}  # or the array form
)

What that won't affect is anything that comes from a dependency, from the cpp_link_args keyword argument any add_project_link_args calls, etc.

[manipuladordedados]

How are you using those flags after the fact?

Sorry for not mentioning when I opened the issue. My bad.

shared_library(
    'emilua-preload-libc',
    preload_libc_src,
    override_options : {
        'cpp_link_args' : cpp_link_args_without_static,
    },
)

The project fails to build this target (other targets which can be built with -static work as usual) because the way meson works:

LDFLAGS='-static' meson setup -Ddefault_both_libraries=static -Ddefault_library=static -Dprefer_static=true -Dwrap_mode=forcefallback -Dauto_features=disabled ..