ICU-13415 Fixing compiler warnings in GCC

X-SVN-Rev: 40614

icu4c/source/common/dictbe.cpp

@@ -1383,6 +1383,7 @@ CjkBreakEngine::divideUpDictionaryRange( UText *inText,
         prevCPPos = cpPos;
         prevUTextPos = utextPos;
     }
+    (void)prevCPPos; // suppress compiler warnings about unused variable
 
     // inString goes out of scope
     // inputMap goes out of scope

icu4c/source/i18n/number_compact.cpp

@@ -316,6 +316,7 @@ void CompactHandler::processQuantity(DecimalQuantity &quantity, MicroProps &micr
     }
 
     // FIXME: Deal with numDigits == 0 (Awaiting a test case)
+    (void)numDigits;
 
     // We already performed rounding. Do not perform it again.
     micros.rounding = Rounder::constructPassThrough();