[tepl] build: add comment

[Sébastien Wilmet <swilmet src gnome org>]

commit dda0074db2045ed10a51068efc40e68ae29aca53
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Mon May 4 16:23:30 2020 +0200

    build: add comment
    
    See commit 11963709cda7584a05ec1d0d3aab7ec5f514bf0d (by Chun-wei Fan).

 tepl/meson.build | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/tepl/meson.build b/tepl/meson.build
index 64ee726..998a588 100644
--- a/tepl/meson.build
+++ b/tepl/meson.build
@@ -148,6 +148,7 @@ tepl_lib = library(
   dependencies: TEPL_DEPS,
   link_args: tepl_lib_link_args,
   link_depends: tepl_lib_link_depends,
+  # link_whole is not supported with MSVC, so we use extract_all_objects().
   objects: tepl_static_lib.extract_all_objects(),
   version: TEPL_LT_VERSION,
   install: true