r358858 - Attempt to fix LLVM_ENABLE_THREADS=OFF build after r358665

[Nico Weber via cfe-commits]

Author: nico
Date: Sun Apr 21 12:18:41 2019
New Revision: 358858

URL: http://llvm.org/viewvc/llvm-project?rev=358858&view=rev
Log:
Attempt to fix LLVM_ENABLE_THREADS=OFF build after r358665

Modified:
    cfe/trunk/tools/libclang/CIndex.cpp

Modified: cfe/trunk/tools/libclang/CIndex.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/tools/libclang/CIndex.cpp?rev=358858&r1=358857&r2=358858&view=diff
==============================================================================
--- cfe/trunk/tools/libclang/CIndex.cpp (original)
+++ cfe/trunk/tools/libclang/CIndex.cpp Sun Apr 21 12:18:41 2019
@@ -8723,7 +8723,9 @@ void clang::setThreadBackgroundPriority(
   if (getenv("LIBCLANG_BGPRIO_DISABLE"))
     return;
 
+#if LLVM_ENABLE_THREADS
   llvm::set_thread_priority(llvm::ThreadPriority::Background);
+#endif
 }
 
 void cxindex::printDiagsToStderr(ASTUnit *Unit) {