girepository: Update gi-compile-repository and use it to compile GIRs

Adapt gi-compile-repository sources to compile against the updated
libgirepository that is included with GLib.

This also renames "g-ir-compiler" to "gi-compile-repository" to avoid
overwriting the existing binary and to simplify the binary name going
forward.

girepository/compiler/meson.build

@@ -0,0 +1,29 @@
+# SPDX-License-Identifier: LGPL-2.1-or-later
+# SPDX-FileCopyrightText: 2024 GNOME Foundation
+
+custom_c_args = [
+  '-DG_LOG_DOMAIN="GLib-GirCompiler"',  
+]
+
+if cc.get_id() != 'msvc'
+  custom_c_args = cc.get_supported_arguments([
+    '-Wno-old-style-definition',
+    '-Wno-cast-align',
+    '-Wno-unused-parameter',
+    '-Wno-duplicated-branches',
+  ])
+endif
+
+gicompilerepository = executable('gi-compile-repository', 'compiler.c',
+  dependencies: [
+    libgirepository_dep,
+    libgirepository_internals_dep,
+    libgio_dep,
+  ],
+  install: true,
+  c_args: custom_c_args,
+)
+
+# Replace the default g-ir-compiler target with the version we
+# just built.
+meson.override_find_program('g-ir-compiler', gicompilerepository)