webstead: add Emscripten and musl copyright notices

Programs compiled with Emscripten end up statically linked against the
Emscripten runtime, which includes musl libc.  So we need to comply with
their licences by including a copy of the licence and the relevant
copyright notices.  I think putting them on the webstead page in small
print is probably the best approach.

This might need updating each release to match the version of Emscripten
that I build the editor with.

diff --git a/bedstead.css b/bedstead.css
index 23020b6fd9d3fd9fe435919f3b8b82d22451e90b..ba24f5d0719786f9aad9938f457df90f47bfc455 100644 (file)
--- a/bedstead.css
+++ b/bedstead.css
@@ -63,6 +63,10 @@ img {
     max-width: 100%;
 }
 
+.smallprint {
+    font-size: 0.5em;
+}
+
 /*
  * When we're using text as a sample of Bedstead, it should be hidden
  * from browsers without font support, and the image sample should
@@ -93,7 +97,7 @@ body, .fade {
     color: #33ff88;
 }
 
-:link, kbd, code, tt {
+:link, kbd, code, tt, .smallprint {
   color: #38bf66;
 }
 :visited {

diff --git a/webstead.xhtml b/webstead.xhtml
index 919d17ba515a61244873356df4d64523faaa9225..03b115272b7e2644105c48a8de8dc4a11908a156 100644 (file)
--- a/webstead.xhtml
+++ b/webstead.xhtml
@@ -169,5 +169,30 @@
     </div>
     <p><pre id="c"></pre></p>
     <p><code id="charstring"></code></p>
+    <div class="smallprint">
+      <p>This editor contains code from Emscripten and musl libc under
+        the following licence:</p>
+      <p>Copyright 2010-2022 The Emscripten Authors</p>
+      <p>Copyright © 2005-2020 Rich Felker, et al.</p>
+      <p>Copyright (C) 2011 by Valentin Ochs</p>
+      <p>Permission is hereby granted, free of charge, to any person obtaining
+        a copy of this software and associated documentation files (the
+        "Software"), to deal in the Software without restriction, including
+        without limitation the rights to use, copy, modify, merge, publish,
+        distribute, sublicense, and/or sell copies of the Software, and to
+        permit persons to whom the Software is furnished to do so, subject to
+        the following conditions:</p>
+
+      <p>The above copyright notice and this permission notice shall be
+        included in all copies or substantial portions of the Software.</p>
+
+      <p>THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+        EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+        MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+        IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+        CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+        TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+        SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.</p>
+    </div>
   </body>
 </html>