Index: libcfa/src/fstream.cfa
===================================================================
--- libcfa/src/fstream.cfa	(revision 180f249d8c08c772b9b9314d1b36dd26f03cd3cb)
+++ libcfa/src/fstream.cfa	(revision 0156cdd391a7fe6202bdfbd1d050279980599e97)
@@ -124,10 +124,10 @@
 void open( ofstream & os, const char name[], const char mode[] ) {
 	FILE * file = fopen( name, mode );
-	#ifdef __CFA_DEBUG__
+	// #ifdef __CFA_DEBUG__
 	if ( file == 0p ) {
 		throw (Open_Failure){ os };
 		// abort | IO_MSG "open output file \"" | name | "\"" | nl | strerror( errno );
 	} // if
-	#endif // __CFA_DEBUG__
+	// #endif // __CFA_DEBUG__
 	(os){ file };
 } // open
@@ -262,10 +262,10 @@
 void open( ifstream & is, const char name[], const char mode[] ) {
 	FILE * file = fopen( name, mode );
-	#ifdef __CFA_DEBUG__
+	// #ifdef __CFA_DEBUG__
 	if ( file == 0p ) {
 		throw (Open_Failure){ is };
 		// abort | IO_MSG "open input file \"" | name | "\"" | nl | strerror( errno );
 	} // if
-	#endif // __CFA_DEBUG__
+	// #endif // __CFA_DEBUG__
 	is.file$ = file;
 } // open