--- build/cppunit-1.13.1/include/cppunit/plugin/TestPlugIn.h
+++ misc/build/cppunit-1.13.1/include/cppunit/plugin/TestPlugIn.h
@@ -106,7 +106,9 @@
  * CppUnitTestPlugIn *CPPUNIT_PLUGIN_EXPORTED_NAME(void);
  * \endcode
  */
+#ifndef CPPUNIT_PLUGIN_EXPORTED_NAME
 #define CPPUNIT_PLUGIN_EXPORTED_NAME cppunitTestPlugIn
+#endif
 
 /*! \brief Type of the function exported by a plug-in.
  * \ingroup WritingTestPlugIn
@@ -143,6 +143,12 @@
 #define CPPUNIT_PLUGIN_IMPLEMENT_MAIN()               \
   typedef char __CppUnitPlugInImplementMainDummyTypeDef
 
+// Actually this is for iOS and Android where we build the cppunit tests libraries
+// as plain archives and just link them statically into test fixture programs,
+// and don't want any stinking duplicate main(), but shouldn't hurt for MacOSX either.
+#elif defined(__APPLE__) || defined(__ANDROID__) || defined(__EMSCRIPTEN__)
+#define CPPUNIT_PLUGIN_IMPLEMENT_MAIN()               \
+  typedef char __CppUnitPlugInImplementMainDummyTypeDef
 // Unix
 #elif defined(CPPUNIT_HAVE_UNIX_DLL_LOADER) || defined(CPPUNIT_HAVE_UNIX_SHL_LOADER)
 #define CPPUNIT_PLUGIN_IMPLEMENT_MAIN()               \