[BUG] Multiple incompatible-pointer-type warnings during native build

[amielke]

Describe the bug

Building ProtonPlus 0.5.17 from source triggers multiple compiler warnings about incompatible pointer types during the native build.

The application still builds successfully, but these warnings may indicate real type mismatches in the generated or project C code.

To Reproduce

1. Build ProtonPlus 0.5.17 from source
2. Observe the compiler warnings during compilation

Expected behavior

The project should build without incompatible-pointer-type warnings.

Actual behavior

The build succeeds, but emits warnings such as:

src/protonplus.p/widgets/application.c:395:84: warning: passing argument 3 of ‘gtk_application_set_accels_for_action’ from incompatible pointer type [-Wincompatible-pointer-types]
src/protonplus.p/widgets/application.c:402:91: warning: passing argument 3 of ‘gtk_application_set_accels_for_action’ from incompatible pointer type [-Wincompatible-pointer-types]
src/protonplus.p/widgets/preferences/theme-row.c:531:33: warning: passing argument 1 of ‘gtk_expression_unref’ from incompatible pointer type [-Wincompatible-pointer-types]
src/protonplus.p/widgets/runners/runner-group.c:599:33: warning: passing argument 2 of ‘g_list_foreach’ from incompatible pointer type [-Wincompatible-pointer-types]
src/protonplus.p/widgets/games/games-box.c:752:43: warning: passing argument 1 of ‘gtk_expression_unref’ from incompatible pointer type [-Wincompatible-pointer-types]
src/protonplus.p/widgets/games/games-box.c:1559:59: warning: passing argument 2 of ‘gtk_widget_set_css_classes’ from incompatible pointer type [-Wincompatible-pointer-types]
src/protonplus.p/widgets/games/games-box.c:1765:43: warning: passing argument 1 of ‘gtk_expression_unref’ from incompatible pointer type [-Wincompatible-pointer-types]
src/protonplus.p/widgets/games/mass-edit-button.c:383:43: warning: passing argument 1 of ‘gtk_expression_unref’ from incompatible pointer type [-Wincompatible-pointer-types]
src/protonplus.p/widgets/games/mass-edit-button.c:475:43: warning: passing argument 1 of ‘gtk_expression_unref’ from incompatible pointer type [-Wincompatible-pointer-types]
src/protonplus.p/widgets/games/default-tool-dialog.c:462:33: warning: passing argument 1 of ‘gtk_expression_unref’ from incompatible pointer type [-Wincompatible-pointer-types]
src/protonplus.p/models/launcher.c:1688:42: warning: passing argument 2 of ‘g_list_foreach’ from incompatible pointer type [-Wincompatible-pointer-types]
src/protonplus.p/models/vdf/binary.c:1130:25: warning: assignment to ‘gchar **’ {aka ‘char **’} from incompatible pointer type ‘void **’ [-Wincompatible-pointer-types]
src/protonplus.p/utils/filesystem.c:827:63: warning: passing argument 2 of ‘archive_read_data_block’ from incompatible pointer type [-Wincompatible-pointer-types]
src/protonplus.p/utils/filesystem.c:1083:53: warning: passing argument 3 of ‘g_file_load_contents’ from incompatible pointer type [-Wincompatible-pointer-types]

Environment

• ProtonPlus version: 0.5.17
• Distribution: Gentoo Linux
• Build method: native build with Meson

Additional context

The package builds and starts successfully, but these warnings were flagged during package maintainer testing and seem worth reporting upstream.

[Vysp3r]

I will take a look at these but only when I will do my next refactoring.
Right now everything seems to work somewhat fine so I don't want to risk anything.

[amielke]

Retested with ProtonPlus 0.5.19 on Gentoo.

The application still builds, installs and starts successfully, but the build continues to trigger the same severe -Wincompatible-pointer-types warnings. There are also some shifted/new occurrences compared to 0.5.17, for example involving gtk_string_list_new and g_subprocess_newv.

So the issue is still reproducible with 0.5.19.