gio, gmodule, gthread: compile windows resources only in shared build

When linking static libraries, multiple resources is an error unless
handled in a special way. glib and gobject do not have this problem,
as they already only include resources when building a shared lib.

gio/meson.build

@@ -458,13 +458,15 @@ else
     'gwin32sid.h',
   )
 
-  gio_win_rc = configure_file(
-    input: 'gio.rc.in',
-    output: 'gio.rc',
-    configuration: glibconfig_conf,
-  )
-  gio_win_res = windows.compile_resources(gio_win_rc)
-  win32_sources += [gio_win_res]
+  if glib_build_shared
+    gio_win_rc = configure_file(
+      input: 'gio.rc.in',
+      output: 'gio.rc',
+      configuration: glibconfig_conf,
+    )
+    gio_win_res = windows.compile_resources(gio_win_rc)
+    win32_sources += [gio_win_res]
+  endif
 
   gio_win32_include_headers = files(
     'gregistrysettingsbackend.h',

gmodule/meson.build

@@ -80,7 +80,7 @@ gmodule_visibility_h = custom_target(
 
 gmodule_sources = [gmodule_c, gmodule_visibility_h, gmodule_deprecated_c]
 
-if host_system == 'windows'
+if host_system == 'windows' and glib_build_shared
   gmodule_win_rc = configure_file(
     input: 'gmodule.rc.in',
     output: 'gmodule.rc',

gthread/meson.build

@@ -2,7 +2,7 @@
 # has been moved into glib now
 
 gthread_sources = ['gthread-impl.c']
-if host_system == 'windows'
+if host_system == 'windows' and glib_build_shared
   gthread_win_rc = configure_file(
     input: 'gthread.rc.in',
     output: 'gthread.rc',