diff --git a/gio/tests/gdbus-test-codegen.c b/gio/tests/gdbus-test-codegen.c
index e212e98cc..8db555781 100644
--- a/gio/tests/gdbus-test-codegen.c
+++ b/gio/tests/gdbus-test-codegen.c
@@ -56,7 +56,7 @@ test_annotations (void)
   iface = foo_igen_bar_interface_info ();
   g_assert (iface != NULL);
 
-  /* see Makefile.am for where these annotations are injected */
+  /* see meson.build for where these annotations are injected */
   g_assert_cmpint (count_annotations (iface->annotations), ==, 1);
   g_assert_cmpstr (g_dbus_annotation_info_lookup (iface->annotations, "Key1"), ==, "Value1");
 
diff --git a/gio/tests/gschema-compile.c b/gio/tests/gschema-compile.c
index 81ded83fa..8dc4985b8 100644
--- a/gio/tests/gschema-compile.c
+++ b/gio/tests/gschema-compile.c
@@ -11,11 +11,6 @@ typedef struct {
   const gchar *err;
 } SchemaTest;
 
-/* Meson build defines this, autotools build does not */
-#ifndef GLIB_COMPILE_SCHEMAS
-#define GLIB_COMPILE_SCHEMAS "../glib-compile-schemas"
-#endif
-
 static void
 test_schema_do_compile (gpointer data)
 {
@@ -23,7 +18,7 @@ test_schema_do_compile (gpointer data)
   gchar *filename = g_strconcat (test->name, ".gschema.xml", NULL);
   gchar *path = g_test_build_filename (G_TEST_DIST, "schema-tests", filename, NULL);
   const gchar *argv[] = {
-    GLIB_COMPILE_SCHEMAS,
+    GLIB_COMPILE_SCHEMAS,  /* defined in meson.build */
     "--strict",
     "--dry-run",
     "--schema-file", path,
diff --git a/gio/tests/gsettings.c b/gio/tests/gsettings.c
index 852a8b710..58217e982 100644
--- a/gio/tests/gsettings.c
+++ b/gio/tests/gsettings.c
@@ -2798,12 +2798,8 @@ main (int argc, char *argv[])
       if (!backend_set)
         g_setenv ("GSETTINGS_BACKEND", "memory", TRUE);
 
-/* Meson build defines this, autotools build does not */
-#ifndef GLIB_MKENUMS
-#define GLIB_MKENUMS "../../gobject/glib-mkenums"
-#endif
-
       g_remove ("org.gtk.test.enums.xml");
+      /* #GLIB_MKENUMS is defined in meson.build */
       g_assert (g_spawn_command_line_sync (GLIB_MKENUMS " "
                                            "--template " SRCDIR "/enums.xml.template "
                                            SRCDIR "/testenum.h",
@@ -2820,12 +2816,8 @@ main (int argc, char *argv[])
       g_assert (g_file_set_contents ("org.gtk.test.gschema.override", override_text, -1, NULL));
       g_free (override_text);
 
-/* Meson build defines this, autotools build does not */
-#ifndef GLIB_COMPILE_SCHEMAS
-#define GLIB_COMPILE_SCHEMAS "../glib-compile-schemas"
-#endif
-
       g_remove ("gschemas.compiled");
+      /* #GLIB_COMPILE_SCHEMAS is defined in meson.build */
       g_assert (g_spawn_command_line_sync (GLIB_COMPILE_SCHEMAS " --targetdir=. "
                                            "--schema-file=org.gtk.test.enums.xml "
                                            "--schema-file=org.gtk.test.gschema.xml "
diff --git a/glib/gatomic.c b/glib/gatomic.c
index 2c1faeeef..c52aaad91 100644
--- a/glib/gatomic.c
+++ b/glib/gatomic.c
@@ -90,7 +90,7 @@
 
 #ifdef G_ATOMIC_LOCK_FREE
 
-/* if G_ATOMIC_LOCK_FREE was defined by ./configure then we MUST
+/* if G_ATOMIC_LOCK_FREE was defined by `meson configure` then we MUST
  * implement the atomic operations in a lock-free manner.
  */
 
@@ -669,7 +669,7 @@ gsize
 }
 #else
 
-/* This error occurs when ./configure decided that we should be capable
+/* This error occurs when `meson configure` decided that we should be capable
  * of lock-free atomics but we find at compile-time that we are not.
  */
 #error G_ATOMIC_LOCK_FREE defined, but incapable of lock-free atomics.
diff --git a/glib/ggettext.c b/glib/ggettext.c
index a5223ceb9..b34521ff7 100644
--- a/glib/ggettext.c
+++ b/glib/ggettext.c
@@ -498,7 +498,7 @@ g_dngettext (const gchar *domain,
  *   // Rest of your application.
  * }
  * ]|
- * where `DATADIR` is as typically provided by automake.
+ * where `DATADIR` is as typically provided by automake or Meson.
  *
  * For a library, you only have to call bindtextdomain() and
  * bind_textdomain_codeset() in your initialization function. If your library