--- source/i18n/unicode/format.h
+++ source/i18n/unicode/format.h
@@ -22,6 +22,13 @@
 
 #ifndef FORMAT_H
 #define FORMAT_H
+
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpragmas" // for old GCC
+#pragma GCC diagnostic ignored "-Wunknown-warning-option" // for Clang
+#pragma GCC diagnostic ignored "-Wdeprecated-copy"
+#endif
 
 
 #include "unicode/utypes.h"
@@ -302,6 +309,10 @@
 U_NAMESPACE_END
 
 #endif /* #if !UCONFIG_NO_FORMATTING */
+
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
 
 #endif // _FORMAT
 //eof