diff --git a/cmake/modules/HandleLLVMOptions.cmake b/cmake/modules/HandleLLVMOptions.cmake
index 7e68bfbe96a..cd9773beb97 100644
--- a/cmake/modules/HandleLLVMOptions.cmake
+++ b/cmake/modules/HandleLLVMOptions.cmake
@@ -399,6 +399,15 @@ if(NOT CYGWIN AND NOT WIN32)
   endif()
 endif()
 
+if(CYGWIN OR MINGW)
+  # Prune --out-implib from executables. It doesn't make sense even
+  # with --export-all-symbols.
+  string(REGEX REPLACE "-Wl,--out-implib,[^ ]+ " " "
+    CMAKE_C_LINK_EXECUTABLE "${CMAKE_C_LINK_EXECUTABLE}")
+  string(REGEX REPLACE "-Wl,--out-implib,[^ ]+ " " "
+    CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE}")
+endif()
+
 if(MSVC)
   # Remove flags here, for exceptions and RTTI.
   # Each target property or source property should be responsible to control