David Korn wrote: > > Subject: Re: Re: [ksh93-integration-discuss] Patch to remove some gloval vars > in libcmd... > -------- > > > But there's a bigger issue: any variable in a program > > will be mapped to the libcmd variable of the same name, so > > in essence libcmd steals a large chunk of user namespace and may > > cause application breakage as a result. > > With Solaris, is there a way to specify the set of symbols that you want > to be visible from the library or are all symbols that need to be > shared between modules within the library visible no matter what?
AFAIKM Casper's comment is only about the "public interfaces". Since the global variables I was thinking about are all marked as |static| they only affect the source file where they are defined in. Solaris has a way to define the "public interfaces" (e.g. visible symbols) via "cc"'s -M option (I guess Mike Kupfer can explain this better, AFAIK there is a detailed paper+documentation which describes this but I can't find it anymore... ;-( ) to define a mapping file (called "mapfile-vers" in OS/Net) which describes all the symbols. However this is not neccesary in this case (and for the ksh93 version in OS/Net we're already using this option to make sure that we don't export anything which may harm other applications as casper was worrying). ---- Bye, Roland -- __ . . __ (o.\ \/ /.o) roland.mainz at nrubsig.org \__\/\/__/ MPEG specialist, C&&JAVA&&Sun&&Unix programmer /O /==\ O\ TEL +49 641 7950090 (;O/ \/ \O;)
