Removing shift/reduce warnings in Bison Parser

Use

--warnings=none

However, this does in fact turn off all warnings, including ones you want to see.

parser.output
Hi,
Please find the parser.output file after running make
Added the -rall option

 make
bison -rall -d -v parser.y
parser.y: warning: 2 shift/reduce conflicts [-Wconflicts-sr]
mv parser.tab.c parser.c
mv parser.tab.h tokens.h
g++ -c scanner.c
g++ -c parser.c
g++ -o compile scanner.o parser.o listing.o

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Can this parser.output provide some hints to the behavior happeniing in the other question i posted :
https://www.experts-exchange.com/questions/29200170/Parser-not-showing-all-errors.html#questionAdd
Please point or give some hints into this parser.output file

[code]
State 6 conflicts: 1 shift/reduce
State 72 conflicts: 1 shift/reduce

State 6

   2 function_header: FUNCTION IDENTIFIER . RETURNS type ';'
   3                            | FUNCTION IDENTIFIER . parameters RETURNS type ';'
   7 parameters: . parameter
   8 | . parameter ',' parameters
   9 | . %empty [RETURNS]
 10 parameter: . IDENTIFIER ':' type

   IDENTIFIER shift, and go to state 10
   RETURNS shift, and go to state 11

   RETURNS [reduce using rule 9 (parameters)]

   parameters go to state 12
   parameter go to state 13

State 72

   20 statement: CASE expression IS . when OTHERS ARROW statement_ ENDCASE
   21 when: . WHEN INT_LITERAL ARROW expression ';'
   22 | . when WHEN INT_LITERAL ARROW expression ';'
   23 | . error ';'
   24 | . %empty [OTHERS, WHEN]

   error shift, and go to state 85
   WHEN shift, and go to state 86

   OTHERS reduce using rule 24 (when)
   WHEN [reduce using rule 24 (when)]
   when go to state 87[/code]

Ok the first one in State 6 is that the parser doesnt know if whether  to shift and go to st 11 or  reduce using rule 9
   RETURNS shift, and go to state 11
   RETURNS [reduce using rule 9 (parameters)]

the Second one in state 72 cant decide between:
WHEN shift, and go to state 86
or
WHEN [reduce using rule 24 (when)]

This is as far as I can help, what you need to do to fix is out of my comprehension/knowledge.