Index: llvm/lib/Support/CMakeLists.txt
===================================================================
--- llvm/lib/Support/CMakeLists.txt
+++ llvm/lib/Support/CMakeLists.txt
@@ -314,3 +314,10 @@
     ${Z3_INCLUDE_DIR}
     )
 endif()
+
+if(LLVM_ENABLE_CURL)
+  target_include_directories(LLVMSupport SYSTEM
+    PRIVATE
+    ${CURL_INCLUDE_DIRS}
+    )
+endif()