Index: head/graphics/mesa-dri/files/patch-llvm7
===================================================================
--- head/graphics/mesa-dri/files/patch-llvm7	(nonexistent)
+++ head/graphics/mesa-dri/files/patch-llvm7	(revision 477691)
@@ -0,0 +1,52 @@
+commit d424be0feda5
+Author: Jan Vesely <jan.vesely@rutgers.edu>
+Date:   Tue May 22 17:52:30 2018 -0400
+
+    clover: Fix build after llvm r332881.
+    
+    v2: fix whitespace and indentation
+    
+    r332881 added an extra parameter to the emit function.
+    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106619
+    Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
+    Reviewed-By: Aaron Watry <awatry@gmail.com>
+    Tested-By: Aaron Watry <awatry@gmail.com>
+    Tested-by: Kai Wasserbäch <kai@dev.carbon-project.org>
+
+--- src/gallium/state_trackers/clover/llvm/codegen/native.cpp.orig	2018-07-27 13:52:17 UTC
++++ src/gallium/state_trackers/clover/llvm/codegen/native.cpp
+@@ -126,13 +126,12 @@ namespace {
+       {
+          compat::pass_manager pm;
+          ::llvm::raw_svector_ostream os { data };
+-         compat::raw_ostream_to_emit_file fos(os);
+ 
+          mod.setDataLayout(compat::get_data_layout(*tm));
+          tm->Options.MCOptions.AsmVerbose =
+             (ft == TargetMachine::CGFT_AssemblyFile);
+ 
+-         if (tm->addPassesToEmitFile(pm, fos, ft))
++         if (compat::add_passes_to_emit_file(*tm, pm, os, ft))
+             fail(r_log, build_error(), "TargetMachine can't emit this file");
+ 
+          pm.run(mod);
+--- src/gallium/state_trackers/clover/llvm/compat.hpp.orig	2018-07-27 13:52:17 UTC
++++ src/gallium/state_trackers/clover/llvm/compat.hpp
+@@ -247,6 +247,17 @@ namespace clover {
+ 		::llvm::WriteBitcodeToFile(&mod, os);
+ #endif
+ 	}
++
++	template<typename TM, typename PM, typename OS, typename FT>
++	bool add_passes_to_emit_file(TM &tm, PM &pm, OS &os, FT &ft)
++	{
++		compat::raw_ostream_to_emit_file fos(os);
++#if HAVE_LLVM >= 0x0700
++		return tm.addPassesToEmitFile(pm, fos, nullptr, ft);
++#else
++		return tm.addPassesToEmitFile(pm, fos, ft);
++#endif
++	}
+       }
+    }
+ }

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