diff --git a/Source/cmFindFileCommand.cxx b/Source/cmFindFileCommand.cxx
index b1972f237..d83cc7bd6 100644
--- a/Source/cmFindFileCommand.cxx
+++ b/Source/cmFindFileCommand.cxx
@@ -114,6 +114,9 @@ cmStdString cmFindFileCommand::FindHeaderInFrameworks(
   const char* file)
 {
 #ifndef __APPLE__
+  (void)path;
+  (void)defineVar;
+  (void)file;
   return cmStdString("");
 #else
   cmStdString fileName = file;
diff --git a/Source/cmTarget.cxx b/Source/cmTarget.cxx
index 2960749b7..4e2b01c2e 100644
--- a/Source/cmTarget.cxx
+++ b/Source/cmTarget.cxx
@@ -307,6 +307,7 @@ void cmTarget::AddLinkLibrary(const std::string& lib,
 
 bool cmTarget::AddFramework(const std::string& libname, LinkLibraryType llt)
 {
+  (void)llt; // TODO: What is this?
   if(cmSystemTools::IsPathToFramework(libname.c_str()))
     {
     std::string frameworkDir = libname;