hack to silence -Wunused-function

Change-Id: I585839c05ca3b0336ffbe2c60a2f58c34b0aae78

connectivity/Library_dbtools.mk

@@ -67,8 +67,6 @@ connectivity/source/parse/sqlflex \
 
 $(call gb_LexTarget_get_scanner_target,connectivity/source/parse/sqlflex) : T_LEXFLAGS := -i -8 -PSQLyy -L
 
-
-
 $(eval $(call gb_Library_add_exception_objects,dbtools,\
 	connectivity/source/commontools/AutoRetrievingBase \
 	connectivity/source/commontools/BlobHelper \

connectivity/source/parse/sqlflex.l

@@ -87,6 +87,8 @@ OSQLScanner* xxx_pGLOBAL_SQLSCAN = nullptr;
 #define YY_FATAL_ERROR(msg)                         \
 {                                                   \
     xxx_pGLOBAL_SQLSCAN->SQLyyerror(msg);           \
+    /*hack to silence -Wunused-function*/           \
+    if (0) yy_fatal_error(msg);                     \
 }
 
 %}