MacOS cannot find libadwaita

[mrunion]

I am trying a simple window and trying to use Adwaita. The error I get when running "nim c..." is:

ld: library 'adwaita-1' not found
clang: error: linker command failed with exit code 1 (use -v to see invocation)

I have GTK4 and libAdwaita installed via brew. The code for the app is simple:

import owlkettle
import owlkettle/adw

viewable App:
    text: string

method view(app: AppState): Widget =
    result = gui:
        Window:
            title = "Simple Window"

adw.brew(gui(App()))

If I use GTK4 itself by removing the "adw.brew..." and just using "brew...", and removing the adw import the code runs fine.

pkg-build shows the following output when running "pkg-config --libs libadwaita-1"

-L/opt/homebrew/Cellar/libadwaita/1.5.2/lib -L/opt/homebrew/Cellar/gtk4/4.14.4/lib 
-L/opt/homebrew/Cellar/pango/1.54.0/lib -L/opt/homebrew/Cellar/harfbuzz/9.0.0/lib 
-L/opt/homebrew/Cellar/gdk-pixbuf/2.42.12/lib -L/opt/homebrew/Cellar/cairo/1.18.0/lib 
-L/opt/homebrew/Cellar/graphene/1.10.8/lib -L/opt/homebrew/Cellar/glib/2.80.4/lib 
-L/opt/homebrew/opt/gettext/lib 
-ladwaita-1 -lgtk-4 -lpangocairo-1.0 -lpango-1.0 -lharfbuzz -lgdk_pixbuf-2.0 
-lcairo-gobject -lcairo -lgraphene-1.0 -lgio-2.0 -lgobject-2.0 -lglib-2.0 -lintl

Am I doing something wrong or is MacOS not supporting Adwaita, or any other clues?

Thanks in advance!

[can-lehmann]

It seems like the shared library file is missing. From the pkg-config output I would assume that it is supposed to be in /opt/homebrew/Cellar/libadwaita/1.5.2/lib. Does this folder contain the shared library? Can you compile & link libadwaita applications written in C using gcc?

[mrunion]

The dynlib is in that location, so I am assuming this is correct? (I am on Apple Silicon, so not sure if that's relevant or not here.)

Contents of /opt/homebrew/Cellar/libadwaita/1.5.2/lib

drwxr-xr-x   6 <.....>  <...>      192 Jul 23 09:47 .
drwxr-xr-x  13 <.....>  <...>      416 Jul 23 09:47 ..
drwxr-xr-x   3 <.....>  <...>       96 Jun 28 12:14 girepository-1.0
-r--r--r--   1 <.....>  <...>  1871184 Jul 23 09:47 libadwaita-1.0.dylib
lrwxr-xr-x   1 <.....>  <...>       20 Jun 28 12:14 libadwaita-1.dylib -> libadwaita-1.0.dylib
drwxr-xr-x   3 <.....>  <...>       96 Jul 23 09:47 pkgconfig

I have not tried using gcc to link anything as this is my first foray into GTK.

[mrunion]

Alright, I tested with a sample Adwaita program (below) in plain C. The program compiled and ran fine with the following compile command:

gcc $(pkg-config --cflags libadwaita-1) -o libadwaitatest-0 libadwaitatest-0.c $(pkg-config --libs libadwaita-1)

However, the nim compiler uses clang. On MacOS, gcc is kind of a "wrapper" for clang so I don't think this is the issue, but I thought I'd bring it up.

Here is the test program I compiled and ran (libadwaitatest-0.c):

#include <adwaita.h>

static void
activate_cb (GtkApplication *app)
{
  GtkWidget *window = gtk_application_window_new (app);
  GtkWidget *label = gtk_label_new ("Hello World");

  gtk_window_set_title (GTK_WINDOW (window), "Hello");
  gtk_window_set_default_size (GTK_WINDOW (window), 200, 200);
  gtk_window_set_child (GTK_WINDOW (window), label);
  gtk_window_present (GTK_WINDOW (window));
}

int
main (int   argc,
      char *argv[])
{
  g_autoptr (AdwApplication) app = NULL;

  app = adw_application_new ("org.example.Hello", G_APPLICATION_FLAGS_NONE);

  g_signal_connect (app, "activate", G_CALLBACK (activate_cb), NULL);

  return g_application_run (G_APPLICATION (app), argc, argv);
}

[mrunion]

UPDATE: I was wrong -- I changed that line myself and the same error about not finding the adwaita library and it is now looking for libadwaita-1 that is still not found.

---- I was wrong below here ----
I think I may have found the issue.

Notice that it says it cannot find the library "adwaita-1"? png-config can't either:

pkg-config --libs adwaita-1

returns:

Package adwaita-1 was not found in the pkg-config search path.
Perhaps you should add the directory containing `adwaita-1.pc'
to the PKG_CONFIG_PATH environment variable
No package 'adwaita-1' found

The package on MacOS is libadwaita-1, and as above, pkg-config --libs libadwaita-1 returns the library info.

Could it be line 31 in the /owlkettle/bindings/adw.nim using {.passl: "-ladwaita-1".} instead of {.passl: "-llibadwaita-1".}?

[mrunion]

UPDATE: I created a PR #168 to fix this issue. Hopefully this is the correct way.

OR the existing code will compile by adding:

nim c --clibdir:/opt/homebrew/Cellar/libadwaita/1.5.2/lib <myadwaitauicode>.nim

---

OK, I found the problem! But I don't know the fix.

The issue is that the libadwaita library path is NOT included in the list of library paths when compiling. Here is a snippet that shows the library paths from the compilation using nim and Adwaita:

-L/opt/homebrew/Cellar/gtk4/4.14.4/lib 
-L/opt/homebrew/Cellar/pango/1.54.0/lib 
-L/opt/homebrew/Cellar/harfbuzz/9.0.0/lib 
-L/opt/homebrew/Cellar/gdk-pixbuf/2.42.12/lib 
-L/opt/homebrew/Cellar/cairo/1.18.0/lib 
-L/opt/homebrew/Cellar/graphene/1.10.8/lib 
-L/opt/homebrew/Cellar/glib/2.80.4/lib 
-L/opt/homebrew/opt/gettext/lib 
-lgtk-4 
-lpangocairo-1.0 
-lpango-1.0 
-lharfbuzz 
-lgdk_pixbuf-2.0 
-lcairo-gobject 
-lcairo 
-lgraphene-1.0 
-lgio-2.0 
-lgobject-2.0 
-lglib-2.0 
-lintl 
-L/opt/homebrew/Cellar/cairo/1.18.0/lib 
-lcairo 
-llibadwaita-1   
-ldl

Notice that "-llibadwaita-1" is in the list of libraries, but the path is not.

Adding the following will result in a successful compilation:

-L/opt/homebrew/Cellar/libadwaita/1.5.2/lib

What I don't know is why nim isn't adding this.