--- a/ipc/app/MozillaRuntimeMain.cpp
+++ b/ipc/app/MozillaRuntimeMain.cpp
@@ -65,17 +65,17 @@ main(int argc, char* argv[])
     // disabled.
     if (0 != strcmp("-", crashReporterArg)
         && !XRE_SetRemoteExceptionHandler(crashReporterArg))
         return 1;
 #  elif defined(OS_LINUX)
     // on POSIX, |crashReporterArg| is "true" if crash reporting is
     // enabled, false otherwise
     if (0 != strcmp("false", crashReporterArg)
-        && !XRE_SetRemoteExceptionHandler())
+        && !XRE_SetRemoteExceptionHandler(NULL))
         return 1;
 #  else
 #    error "OOP crash reporting unsupported on this platform"
 #  endif   
 #endif // if defined(MOZ_CRASHREPORTER)
 
 #if defined(XP_WIN) && defined(DEBUG_bent)
     MessageBox(NULL, L"Hi", L"Hi", MB_OK);

--- a/xpcom/build/nsXULAppAPI.h
+++ b/xpcom/build/nsXULAppAPI.h
@@ -446,17 +446,17 @@ PR_STATIC_ASSERT(sizeof(kGeckoProcessTyp
 XRE_API(const char*,
         XRE_ChildProcessTypeToString, (GeckoProcessType aProcessType))
 
 XRE_API(GeckoProcessType,
         XRE_StringToChildProcessType, (const char* aProcessTypeString))
 
 #if defined(MOZ_CRASHREPORTER)
 XRE_API(PRBool,
-        XRE_SetRemoteExceptionHandler, (const char* aPipe=0))
+        XRE_SetRemoteExceptionHandler, (const char* aPipe))
 #endif
 
 XRE_API(nsresult,
         XRE_InitChildProcess, (int aArgc,
                                char* aArgv[],
                                GeckoProcessType aProcess))
 
 XRE_API(GeckoProcessType,