Re: [Bug-ddrescue] Cannot compile with uClibc-ng

[Rosen Penev]

On Mon, Jul 22, 2019 at 2:09 AM, Antonio Diaz Diaz <address@hidden> 
wrote:
> Rosen Penev wrote:
> > > It seems that uClibc-ng is defining fgetc, fputc, feof, and ferror 
> > > as
> > > macros and not including them in std.
> > >
> > >   From the C++ 2003 standard:
> > >
> > > "Except as noted in clauses 18 through 27, the contents of each 
> > > header
> > > cname shall be the same as that of the corresponding header name.h, 
> > > as
> > > specified in ISO/IEC 9899:1990 Programming Languages C (Clause 7), 
> > > or
> > > ISO/IEC:1990 Programming Languages--C AMENDMENT 1: C Integrity, 
> > > (Clause
> > > 7), as appropriate, as if by inclusion. In the C++ Standard Library,
> > > however, the declarations and definitions (except for names which 
> > > are
> > > defined as macros in C) are within namespace scope (3.3.5) of the
> > > namespace std."
> > >
> > > But these four functions do not seem to be defined as macros in C.
> > >
> > > IMO this is a bug in uClibc-ng
> > Even so, it might still make sense to work around it.
>
> I don't see how this can be done. Using plain 'fgetc' instead of 
> 'std::fgetc' will fail with conforming libc implementations.
I don't really do C++, but this is one of the ways a similar issue was 
fixed: 
https://github.com/facebook/folly/commit/b2cecfb5ced32cac372cfe6c5ac1935365b5dd60
> > For now, I've disabled building gddrescue with uClibc-ng in OpenWrt.
>
> Have you reported the bug to uClibc-ng developers?
I have not.
> Best regards,
> Antonio.