diff --git a/llvm/runtimes/CMakeLists.txt b/llvm/runtimes/CMakeLists.txt
--- a/llvm/runtimes/CMakeLists.txt
+++ b/llvm/runtimes/CMakeLists.txt
@@ -355,6 +355,9 @@
     string(REPLACE "-" "_" canon_name ${projName})
     string(TOUPPER ${canon_name} canon_name)
     list(APPEND prefixes ${canon_name})
+    if (${canon_name} STREQUAL "OPENMP")
+      list(APPEND prefixes "LIBOMP" "LIBOMPTARGET")
+    endif()
     # Many compiler-rt options start with SANITIZER_ rather than COMPILER_RT_,
     # so when compiler-rt is enabled, consider both.
     if(canon_name STREQUAL "COMPILER_RT")