Re-compiling app with 2.0.1: warnings

[Fabio Mascelloni]

Re-compiling my old Swarm1.4.1 app with Swarm2.0.1 I get a lot of warnings such as :

 

1) '' unused variable '<var-name>' ''                                              (harmless warning,I suppose)

2) '' '<var-name>' might be used uninitialized in this function ''        ( harmless warning too)

 

3) " implicit declaration of function '<function-name>'

      All the 'implicitly declarated' functions are defined in a header "Common.h" that is used by two

      classes, BlackBoard and Agent that reference one another ( BlackB.m imports Agent.h and Agent.m 

      imports BlackB.h).I've tried to solve this in these ways:

  

      a) importing "Common.h" only in BlackBoard's header ; resulting warning :

         .........

         Common.h : <line-number> : multiple definition of function '<function-name>'

         BlackBoard.o : Common.h : <line-number> : first defined here

         Agent.o : in function <function-name>

         .............

    b)  importing "Common.h" in both "Agent.m" and "BlackB.m" ; same warnings of point a)

        

  I've thrown away the first three kinds of warning removing -Wall from OBJCFLAGS in Makefile.common ,but I wonder if this is a good practice  

 

  4)   " libtool-swarm :link:warning: library '/Swarm-2.0.1/lib/libspace.la' was moved"

 

   How can I solve 3) and 4) ?

 

   Thanks ,Fabio.