diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index b696682c13f..993b6e27444 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -37,14 +37,32 @@ if(PYTHONINTERP_FOUND)
   foreach(INC_DIR ${INC_DIRS})
     set(IDIRS "${IDIRS} -I${INC_DIR}")
   endforeach()
-  string(REPLACE "<CMAKE_CXX_COMPILER>" "${CMAKE_CXX_COMPILER}" TEST_COMPILE_CXX_CMD ${CMAKE_CXX_COMPILE_OBJECT})
+
+  if( MSVC )
+    # The compiler's path may contain white space. Wrap it:
+    string(REPLACE "<CMAKE_CXX_COMPILER>" "\\\"${CMAKE_CXX_COMPILER}\\\"" TEST_COMPILE_CXX_CMD ${CMAKE_CXX_COMPILE_OBJECT})
+    # Eliminate continuation lines from NMake flow. PR9680
+    string(REPLACE "@<<\n"                " "                     TEST_COMPILE_CXX_CMD ${TEST_COMPILE_CXX_CMD})
+    string(REPLACE "\n<<"                 " "                     TEST_COMPILE_CXX_CMD ${TEST_COMPILE_CXX_CMD})
+  else()
+    string(REPLACE "<CMAKE_CXX_COMPILER>" "${CMAKE_CXX_COMPILER}" TEST_COMPILE_CXX_CMD ${CMAKE_CXX_COMPILE_OBJECT})
+  endif()
+
   string(REPLACE "<DEFINES>"            "${DEFS}"               TEST_COMPILE_CXX_CMD ${TEST_COMPILE_CXX_CMD})
   string(REPLACE "<FLAGS>"              "${CMAKE_CXX_FLAGS}"    TEST_COMPILE_CXX_CMD ${TEST_COMPILE_CXX_CMD})
-  string(REPLACE "-o"                   ""                      TEST_COMPILE_CXX_CMD ${TEST_COMPILE_CXX_CMD})
+  if (MSVC) # PR9680
+    # Eliminate MSVC equivalent of -o
+    string(REPLACE "/Fo<OBJECT>"        ""                      TEST_COMPILE_CXX_CMD ${TEST_COMPILE_CXX_CMD})
+    # Eliminate "how to rename program database" argument
+    string(REPLACE "/Fd<TARGET_PDB>"    ""                      TEST_COMPILE_CXX_CMD ${TEST_COMPILE_CXX_CMD})
+  else()
+    string(REPLACE "-o"                 ""                      TEST_COMPILE_CXX_CMD ${TEST_COMPILE_CXX_CMD})
+  endif(MSVC)
   string(REGEX REPLACE "<[^>]+>"        ""                      TEST_COMPILE_CXX_CMD ${TEST_COMPILE_CXX_CMD})
   set(TEST_COMPILE_CXX_CMD "${TEST_COMPILE_CXX_CMD} ${IDIRS}")
   if(NOT MSVC)
     set(TEST_COMPILE_CXX_CMD "${TEST_COMPILE_CXX_CMD} -x c++")
+    # MSVC already has /TP to indicate a C++ source file
   endif()
   configure_file(
     ${CMAKE_CURRENT_SOURCE_DIR}/site.exp.in