From 265a70d7d07477c29a2b4ac5878f39bd46ba1095 Mon Sep 17 00:00:00 2001
From: Sylvestre Ledru <sylvestre@debian.org>
Date: Mon, 18 Oct 2021 16:15:10 +0200
Subject: [PATCH] Disable the build of libclc on old Ubuntu (Groovy & focal) as
 llvm-spir is too old on these version. See bug #52200

---
 debian/changelog | 5 ++++-
 debian/rules     | 7 ++++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/debian/changelog b/debian/changelog
index 8445a941..3889fb14 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,6 +1,9 @@
 llvm-toolchain-13 (1:13.0.1-8) UNRELEASED; urgency=medium
 
-  * New changelog
+  [ Sylvestre Ledru ]
+  * Disable the build of libclc on old Ubuntu (Groovy & focal)
+    as llvm-spir is too old on these version.
+    See bug #52200
 
  -- Jordan Justen <jljusten@debian.org>  Wed, 26 Oct 2022 10:13:59 -0700
 
diff --git a/debian/rules b/debian/rules
index e5d8cc21..cce08fec 100755
--- a/debian/rules
+++ b/debian/rules
@@ -217,7 +217,12 @@ endif
 ifeq ($(shell command -v llvm-spirv),)
 LLVM_SPIRV_INSTALLED = no
 else
-LLVM_SPIRV_INSTALLED = yes
+	ifeq ($(shell dpkg --compare-versions $(shell dpkg-query -W -f '$${Version}' llvm-spirv) ge 10.0.0 ; echo $$?),0)
+# Too old llvm-spirv version are failing. See #52200
+		LLVM_SPIRV_INSTALLED = yes
+	else
+		LLVM_SPIRV_INSTALLED = no
+	endif
 endif
 
 LIBCLC_TARGETS_TO_BUILD="amdgcn--;amdgcn--amdhsa;amdgcn-mesa-mesa3d;r600--;nvptx--;nvptx64--;nvptx--nvidiacl;nvptx64--nvidiacl"