use #if instead if #ifdef for the things in the public config header

[simgrid.git] / include / xbt / string.hpp

diff --git a/include/xbt/string.hpp b/include/xbt/string.hpp
index 164d1a0..71f7545 100644 (file)
--- a/include/xbt/string.hpp
+++ b/include/xbt/string.hpp
@@ -7,7 +7,7 @@
 #ifndef SIMGRIC_XBT_STRING_HPP
 #define SIMGRIC_XBT_STRING_HPP
 
-#ifdef HAVE_MC
+#if HAVE_MC
 
 #include <stdexcept>
 #include <cstddef>
@@ -296,4 +296,4 @@ typedef std::string string;
 
 #endif
 
-#endif
\ No newline at end of file
+#endif