Merge commit 'd0d8d7e7ea5074cb107499a73a22ce14bec3fb10' into update-shadercndk-r24-beta1

Includes:
d0d8d7e Finalize v2021.2
a1a1922 Update DEPS
fadb0ed Add external COmmon Lisp bindings to README.md (#1209)
00c8f73 Start Shaderc v2021.2 development

Testing: checkbuild.py on Linux
Change-Id: I0124f51b901f2391afbc25205f8f82d91ae0c958

3 files changed, 13 insertions, 3 deletions

diff --git a/CHANGES b/CHANGES
index 7d353bd..fa738af 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,7 +1,15 @@
 Revision history for Shaderc
 
+v2021.2 2021-08-25
+ - README: Mention Common Lisp bindings (external)
+ - Update DEPS:
+    - SPIRV-Tools v2021.3
+    - SPIRV-Headers master 2021-08-25
+    - Glslang GitHub master 2021-08-25
+
 v2021.1 2021-06-21
  - Disable --target-env=opengl_compat with an explicit error message
+   - It has been deprecated for a long time.
 
 v2021.0 2021-04-21
  - Refresh dependencies (in DEPS):
diff --git a/DEPS b/DEPS
index 763717e..76b95de 100644
--- a/DEPS
+++ b/DEPS
@@ -5,11 +5,11 @@ vars = {
   'khronos_git': 'https://github.com/KhronosGroup',
 
   'effcee_revision' : '2ec8f8738118cc483b67c04a759fee53496c5659',
-  'glslang_revision': '3d935ea2243b4fffd9694191834d8573270dc869',
+  'glslang_revision': 'a4599ef7561abed83d45bab4c7492daeceef92a5',
   'googletest_revision': '389cb68b87193358358ae87cc56d257fd0d80189',
   're2_revision': '7107ebc4fbf7205151d8d2a57b2fc6e7853125d4',
-  'spirv_headers_revision': 'f836486eb164603f3c8cc7c272f4d3b953d6aa25',
-  'spirv_tools_revision': 'd07505c761f5a0013cf3134f1d912ec775ad49c7',
+  'spirv_headers_revision': '449bc986ba6f4c5e10e32828783f9daef2a77644',
+  'spirv_tools_revision': '1fbed83c8aab8517d821fcb4164c08567951938f',
 }
 
 deps = {
diff --git a/README.md b/README.md
index ff9dda3..3048618 100644
--- a/README.md
+++ b/README.md
@@ -249,6 +249,7 @@ older versions of Shaderc and its dependencies.
 * **Rust:** [shaderc-rs][shaderc-rs]
 * **Go:** [gshaderc][gshaderc]
 * **.NET:** [shaderc.net][shadercdotnet]
+* **Common Lisp:** [shadercl][shaderccommonlisp]
 
 [khr-glslang]: https://github.com/KhronosGroup/glslang
 [spirv-tools]: https://github.com/KhronosGroup/SPIRV-Tools
@@ -259,3 +260,4 @@ older versions of Shaderc and its dependencies.
 [dawn]: https://dawn.googlesource.com/dawn
 [gshaderc]: https://github.com/celer/gshaderc
 [shadercdotnet]: https://github.com/jpbruyere/shaderc.net
+[shaderccommonlisp]: https://github.com/JolifantoBambla/shadercl