From 4ff7678deb6832d39f3d7e1612ee6cf1ae24a76f Mon Sep 17 00:00:00 2001
From: Erik Kundiman <erik@megapahit.org>
Date: Wed, 6 Sep 2023 17:06:54 +0800
Subject: GL_ALPHA8_EXT as an alternative to GL_ALPHA8

---
 indra/llappearance/lltexlayerparams.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/indra/llappearance/lltexlayerparams.cpp b/indra/llappearance/lltexlayerparams.cpp
index a6b0f54c88..ec02d0d7fc 100644
--- a/indra/llappearance/lltexlayerparams.cpp
+++ b/indra/llappearance/lltexlayerparams.cpp
@@ -321,7 +321,11 @@ BOOL LLTexLayerParamAlpha::render(S32 x, S32 y, S32 width, S32 height)
 				// We now have something in one of our caches
 				LLTexLayerSet::sHasCaches |= mCachedProcessedTexture ? TRUE : FALSE;
 
+#if GL_VERSION_1_1
 				mCachedProcessedTexture->setExplicitFormat(GL_ALPHA8, GL_ALPHA);
+#else
+				mCachedProcessedTexture->setExplicitFormat(GL_ALPHA8_EXT, GL_ALPHA);
+#endif
 			}
 
 			// Applies domain and effective weight to data as it is decoded. Also resizes the raw image if needed.
-- 
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