examples: Make self contained and add build system integration examples

The libgirepository example now is its own meson project.

There now is a small library that is buildable with meson and autotools
which creates a gir/typelib. Usefull for testing our build system integration
and for small experiments.

Fixes #287

2 files changed, 55 insertions, 0 deletions

diff --git a/examples/girepository/glib-print.c b/examples/girepository/glib-print.c
new file mode 100644
index 00000000..595ae48b
--- /dev/null
+++ b/examples/girepository/glib-print.c
@@ -0,0 +1,48 @@
+#include <girepository.h>
+
+int
+main (void)
+{
+  GIRepository *repository;
+  GError *error = NULL;
+  GIBaseInfo *base_info;
+  GIArgument in_args[5];
+  GIArgument retval;
+
+  repository = g_irepository_get_default ();
+  g_irepository_require (repository, "GLib", "2.0", 0, &error);
+  if (error)
+    {
+      g_error ("ERROR: %s\n", error->message);
+      return 1;
+    }
+
+  base_info = g_irepository_find_by_name (repository, "GLib", "assertion_message");
+  if (!base_info)
+    {
+      g_error ("ERROR: %s\n", "Could not find GLib.warn_message");
+      return 1;
+    }
+
+  in_args[0].v_pointer = (gpointer)"domain";
+  in_args[1].v_pointer = (gpointer)"glib-print.c";
+  in_args[2].v_int = 42;
+  in_args[3].v_pointer = (gpointer)"main";
+  in_args[4].v_pointer = (gpointer)"hello world";
+
+  if (!g_function_info_invoke ((GIFunctionInfo *) base_info,
+                               (const GIArgument *) &in_args,
+                               5,
+                               NULL,
+                               0,
+                               &retval,
+                               &error))
+    {
+      g_error ("ERROR: %s\n", error->message);
+      return 1;
+    }
+
+  g_base_info_unref (base_info);
+
+  return 0;
+}
diff --git a/examples/girepository/meson.build b/examples/girepository/meson.build
new file mode 100644
index 00000000..e3e0b7eb
--- /dev/null
+++ b/examples/girepository/meson.build
@@ -0,0 +1,7 @@
+project('girepository-sample', 'c')
+
+girepo_dep = dependency('gobject-introspection-1.0')
+
+executable('glib-print', 'glib-print.c',
+  dependencies: girepo_dep,
+)