From af83c6571e47d06468b8162dd29ad57bcf4967a8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Piotr=20Brzezi=C5=84ski?= <piotr@centricular.com>
Date: Tue, 9 Aug 2022 10:42:39 +0200
Subject: [PATCH] giomodule: Automatically detect modules on macOS

Makes use of relocatable prefixes, allowing gio to find modules
automatically without needing to set the GIO_EXTRA_MODULES env var.
---
 gio/giomodule.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/gio/giomodule.c b/gio/giomodule.c
index f5dbb4555..fce60e9fc 100644
--- a/gio/giomodule.c
+++ b/gio/giomodule.c
@@ -1262,6 +1262,29 @@ get_gio_module_dir (void)
       g_free (install_dir);
 #else
       module_dir = g_strdup (GIO_MODULE_DIR);
+#ifdef __APPLE__
+#include "TargetConditionals.h"
+#if TARGET_OS_OSX
+#include <dlfcn.h>
+      {
+        g_autofree gchar *path = NULL;
+        g_autofree gchar *possible_dir = NULL;
+        Dl_info info;
+
+        if (dladdr (get_gio_module_dir, &info))
+          {
+            /* Gets path to the PREFIX/lib directory */
+            path = g_path_get_dirname (info.dli_fname);
+            possible_dir = g_build_filename (path, "gio", "modules", NULL);
+            if (g_file_test (possible_dir, G_FILE_TEST_IS_DIR))
+              {
+                g_free (module_dir);
+                module_dir = g_steal_pointer (&possible_dir);
+              }
+          }
+      }
+#endif
+#endif
 #endif
     }