Re: Woe with doSetUnset

[john o goyo]

On 2022-07-03 12:36, Gaius Mulley wrote:
> john o goyo<jog37@riddermarkfarm.ca>  writes:
>
> > >      <jog37@riddermarkfarm.ca>  wrote:
> > >
> > >          Gaius:
> > >
> > >          I will not be setting up my Sparc box for another few weeks,
> > >          so I am
> > >          concentrating on mc.  To obtain the required header files, I
> > >          am building
> > >          a cross-compiler on my M1 Mini for aarch64-unknown-freebsd10.1
> > >          and
> > >          encountering a strange error.
> > >
> > >          /usr/bin/g++ -std=gnu++11 -DHAVE_CONFIG_H -g -c -I. -Im2/gm2-libs
> > >          -I../../../src/gcc-git-devel-modula2/gcc/../include
> > >          -I../../../src/gcc-git-devel-modula2/gcc -I. -Im2/mc-boot-ch
> > >          -I../../../src/gcc-git-devel-modula2/gcc
> > >          -I../../../src/gcc-git-devel-modula2/gcc/m2/mc-boot-ch
> > >          -I../../../src/gcc-git-devel-modula2/gcc/../include
> > >          -I../../../src/gcc-git-devel-modula2/gcc/../libcpp/include
> > >          -I../../../src/gcc-git-devel-modula2/gcc/../libcody
> > >          -I/usr/local/include
> > >          -I/usr/local/include -I/usr/local/include
> > >          -I../../../src/gcc-git-devel-modula2/gcc/../libdecnumber
> > >          -I../../../src/gcc-git-devel-modula2/gcc/../libdecnumber/bid
> > >          -I../libdecnumber
> > >          -I../../../src/gcc-git-devel-modula2/gcc/../libbacktrace
> > >          -Im2/gm2-libs
> > >          ../../../src/gcc-git-devel-modula2/gcc/m2/mc-boot-ch/Gtermios.c
> > >          -o
> > >          m2/mc-boot-ch/Gtermios.o
> > >          clang: warning: treating 'c' input as 'c++' when in C++ mode,
> > >          this
> > >          behavior is deprecated [-Wdeprecated]
> > >          
> > > ../../../src/gcc-git-devel-modula2/gcc/m2/mc-boot-ch/Gtermios.c:1103:14:
> > >
> > >          error: no matching function for call to 'doSetUnset'
> > >                 return doSetUnset (&t->c_iflag, IGNBRK, b);
> > >
> > >          But doSetUnset is defined at ll. 394+ in the same file Gtermios.c.
> > >
> > >          I am somewhat stumped by this one.
> > >
> > >          john
> > Greetings, Gaius.
> >
> > No joy -- I removed EXTERN and the error results.
> >
> > Sincerely,
> > john
> Hi John,
>
> very odd - I've made the following changes on my debian box with clang:
>
> clang++ --version
> Debian clang version 11.0.1-2
> Target: x86_64-pc-linux-gnu
> Thread model: posix
> InstalledDir: /usr/bin
>
> and it now compiles without any warnings with g++ and also clang++.
> Here is the complete source file - I had to rename it to .cc (to get
> rid of the c c++ deprecated warning).

> I also had to change the appropriate build rule in gcc/m2/Make-lang.in.
> I'll git commit/git push the changes tomorrow (on devel/m2link).  It
> would be interesting to see if this works on the m1?
Same error:

/usr/bin/g++ -std=gnu++11 -DHAVE_CONFIG_H -g -c -I. -Im2/gm2-libs 
-I../../../src/gcc-git-devel-modula2/gcc/../include 
-I../../../src/gcc-git-devel-modula2/gcc -I. -Im2/mc-boot-ch 
-I../../../src/gcc-git-devel-modula2/gcc 
-I../../../src/gcc-git-devel-modula2/gcc/m2/mc-boot-ch 
-I../../../src/gcc-git-devel-modula2/gcc/../include 
-I../../../src/gcc-git-devel-modula2/gcc/../libcpp/include 
-I../../../src/gcc-git-devel-modula2/gcc/../libcody -I/usr/local/include 
-I/usr/local/include -I/usr/local/include 
-I../../../src/gcc-git-devel-modula2/gcc/../libdecnumber 
-I../../../src/gcc-git-devel-modula2/gcc/../libdecnumber/bid 
-I../libdecnumber 
-I../../../src/gcc-git-devel-modula2/gcc/../libbacktrace -Im2/gm2-libs 
../../../src/gcc-git-devel-modula2/gcc/m2/mc-boot-ch/Gtermios.c -o 
m2/mc-boot-ch/Gtermios.o
clang: warning: treating 'c' input as 'c++' when in C++ mode, this 
behavior is deprecated [-Wdeprecated]
../../../src/gcc-git-devel-modula2/gcc/m2/mc-boot-ch/Gtermios.c:1091:14: 
error: no matching function for call to 'doSetUnset'
      return doSetUnset (&t->c_iflag, IGNBRK, b);
             ^~~~~~~~~~
../../../src/gcc-git-devel-modula2/gcc/m2/mc-boot-ch/Gtermios.c:168:1: 
note: candidate function not viable: no known conversion from 'tcflag_t 
*' (aka 'unsigned long *') to 'unsigned int *' for 1st argument
doSetUnset (unsigned int *bitset, unsigned int mask, int value)

[Plus 30 more ...]

But the note above speaks of conversion.  I changed the first argument 
to "unsigned long *" and the build continued until encountering the same 
at gcc/m2/gm2-libs-ch/termios.c.

Of course, the build stopped at building shared objects because I do not 
have the cross-compilation binutils.  Nevertheless, I now have the 
header files.

Sincerely,
john

> regards,
> Gaius