From 21a960796c769263e66f45f9ee1795d31be0272e Mon Sep 17 00:00:00 2001
From: Lovell Fuller <github@lovell.info>
Date: Mon, 28 Feb 2022 11:28:08 +0000
Subject: [PATCH] Ignore greyscale ICC profiles due to lcms bug #3112

---
 docs/changelog.md | 3 +++
 src/pipeline.cc   | 3 ++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/docs/changelog.md b/docs/changelog.md
index e744e2fdb..246d5ed10 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -16,6 +16,9 @@ Requires libvips v8.12.2
   [#3110](https://github.com/lovell/sharp/pull/3110)
   [@kleisauke](https://github.com/kleisauke)
 
+* Temporarily ignore greyscale ICC profiles to workaround lcms bug.
+  [#3112](https://github.com/lovell/sharp/issues/3112)
+
 ### v0.30.1 - 9th February 2022
 
 * Allow use of `toBuffer` and `toFile` on the same instance.
diff --git a/src/pipeline.cc b/src/pipeline.cc
index b2c2b3a7b..2289dd215 100644
--- a/src/pipeline.cc
+++ b/src/pipeline.cc
@@ -292,7 +292,8 @@ class PipelineWorker : public Napi::AsyncWorker {
       if (
         sharp::HasProfile(image) &&
         image.interpretation() != VIPS_INTERPRETATION_LABS &&
-        image.interpretation() != VIPS_INTERPRETATION_GREY16
+        image.interpretation() != VIPS_INTERPRETATION_GREY16 &&
+        image.interpretation() != VIPS_INTERPRETATION_B_W
       ) {
         // Convert to sRGB/P3 using embedded profile
         try {