[libvirt] [PATCH] Cast args/env for execve in virCommand

Daniel P. Berrange berrange at redhat.com
Mon May 16 13:23:05 UTC 2011


On Thu, May 12, 2011 at 10:37:04AM -0600, Eric Blake wrote:
> On 05/12/2011 10:29 AM, Daniel P. Berrange wrote:
> > 'char **' is not compatible with 'const char* const*' so needs
> > an explicit cast. Fixes the build on MinGW
> > 
> > * src/util/command.c: Cast args/env for execve
> > ---
> >  src/util/command.c |    4 +++-
> >  1 files changed, 3 insertions(+), 1 deletions(-)
> > 
> > diff --git a/src/util/command.c b/src/util/command.c
> > index 78586e8..d63b984 100644
> > --- a/src/util/command.c
> > +++ b/src/util/command.c
> > @@ -1000,7 +1000,9 @@ int virCommandExec(virCommandPtr cmd)
> >          return -1;
> >      }
> >  
> > -    return execve(cmd->args[0], cmd->args, cmd->env);
> > +    return execve(cmd->args[0],
> > +                  (const char *const *)cmd->args,
> > +                  (const char *const *)cmd->env);
> 
> ACK - this fixes things for now. But we really should be fixing the
> broken signature of mingw execve via a gnulib module (not yet written).

Actually it doesn't work, because it breaks the native build instead.

I've sent a different patch which just disables this, since it is
unused on Win32

Daniel
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