Warnings when building the Ada f-e

[Robert Dewar]

Duncan Sands wrote:
> Building gcc from svn today I see the following:
> 
> prj-nmsc.adb: In function ‘Prj.Nmsc.Check_Naming_Schemes’:
> prj-nmsc.adb:3272: warning: ‘Casing’ may be used uninitialized in this function
> ...
> g-socket.adb: In function ‘GNAT.SOCKETS.SEND_SOCKET’:
> g-socket.adb:1786: warning: ‘SIN’ is used uninitialized in this function
> g-socket.adb: In function ‘GNAT.SOCKETS.RECEIVE_SOCKET’:
> g-socket.adb:1586: warning: ‘SIN’ is used uninitialized in this function
> g-socket.adb: In function ‘GNAT.SOCKETS.GET_SOCKET_NAME’:
> g-socket.adb:1001: warning: ‘SIN’ is used uninitialized in this function
> g-socket.adb: In function ‘GNAT.SOCKETS.CONNECT_SOCKET’:
> g-socket.adb:623: warning: ‘SIN’ is used uninitialized in this function
> g-socket.adb: In function ‘GNAT.SOCKETS.CONNECT_SOCKET’:
> g-socket.adb:655: warning: ‘REQ’ is used uninitialized in this function
> g-socket.adb: In function ‘GNAT.SOCKETS.BIND_SOCKET’:
> g-socket.adb:396: warning: ‘SIN’ is used uninitialized in this function
> g-socket.adb: In function ‘GNAT.SOCKETS.ACCEPT_SOCKET’:
> g-socket.adb:277: warning: ‘SIN’ is used uninitialized in this function
> g-socket.adb: In function ‘GNAT.SOCKETS.GET_PEER_NAME’:
> g-socket.adb:929: warning: ‘SIN’ is used uninitialized in this function
> ...
> a-strmap.adb: In function ‘Ada.Strings.Maps.To_Set’:
> a-strmap.adb:269: warning: ‘Result’ is used uninitialized in this function
> a-strmap.adb: In function ‘Ada.Strings.Maps.To_Set’:
> a-strmap.adb:285: warning: ‘Result’ is used uninitialized in this function
> ...
> g-comlin.adb: In function ‘GNAT.COMMAND_LINE.FIND_LONGEST_MATCHING_SWITCH’:
> g-comlin.adb:96: warning: ‘PARAM’ may be used uninitialized in this function
> g-comlin.adb:96: note: ‘PARAM’ was declared here
> 
> This is x86_64-unknown-linux-gnu.
> 
> Ciao,
> 
> Duncan.

the a-strmap warning is junk

the g-comlin warning is at least missing documentation

to be looked at  ...