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Re: bison 3.3.2 fails to build or run testsuite

From: Akim Demaille
Subject: Re: bison 3.3.2 fails to build or run testsuite
Date: Wed, 6 Feb 2019 06:46:14 +0100

Hi Dennis!

> Le 5 févr. 2019 à 20:57, Dennis Clarke <address@hidden> a écrit :
> Given that the well loved and much used bison has a brand new fresh
> release I had to give it a try on a very strict and not very well loved
> environment.  :-)

That's a nice ambition :)

> This is ye old Solaris 10 sparc server with Oracle Studio C99 compiler
> from the Oracle Studio 12.6 release. Very very strict and very very
> standards compliant and the compile goes smoothly.

Excellent news!

> /bin/bash ./build-aux/ylwrap `test -f 'examples/c++/variant.yy' || echo 
> './'`examples/c++/variant.yy y.tab.c examples/c++/variant.cc y.tab.h `echo 
> examples/c++/variant.cc | sed -e s/cc$/hh/ -e s/cpp$/hpp/ -e s/cxx$/hxx/ -e 
> s/c++$/h++/ -e s/c$/h/` y.output examples/c++/variant.output -- ./tests/bison 
> -o y.tab.c -d -v -Werror -Wall -Wno-yacc --report=all
> updating examples/c++/variant.output
> updating examples/c++/variant.hh
> source='examples/c++/variant.cc' object='examples/c++/variant-variant.o' 
> libtool=no \
> DEPDIR=.deps depmode=dashXmstdout /bin/bash ./build-aux/depcomp \
> /opt/developerstudio12.6/bin/CC -DEXEEXT=\"\"   -I. -I/usr/local/include 
> -m64 -xarch=sparc -dalign -erroff=%none -errtags=yes -ftrap=%none -g 
> -xcode=pic32 -m64 -mc -xunroll=1 -xbuiltin=%none -xdepend=no -xnolibmopt 
> -xlinkopt=0 -xnolibmil -xregs=no%appl -xs -c -o 
> examples/c++/variant-variant.o `test -f 'examples/c++/variant.cc' || echo 
> './'`examples/c++/variant.cc
> "/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/vector.cc", line 127: 
> Error: Cannot assign const yy::parser::stack_symbol_type to 
> yy::parser::stack_symbol_type without 
> "yy::parser::stack_symbol_type::operator=(const 
> yy::parser::stack_symbol_type&)";.
> "/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/vector", line 475:    
>  Where, temwhileinst: While instantiating 
> "std::vector<yy::parser::stack_symbol_type>::__insert_aux(yy::parser::stack_symbol_type*,
>  const yy::parser::stack_symbol_type&)".
> "/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/vector", line 475:    
>  Where, teminstfrom: Instantiated from 
> std::vector<yy::parser::stack_symbol_type>::push_back(const 
> yy::parser::stack_symbol_type&).
> "examples/c++/variant.hh", line 1220:     Where, teminstfrom: Instantiated 
> from yy::parser::stack<yy::parser::stack_symbol_type, 
> std::vector<yy::parser::stack_symbol_type>>::push(yy::parser::stack_symbol_type&).
> "examples/c++/variant.cc", line 384:     Where, teminstend: Instantiated from 
> non-template code.

So, it appears that your compiler does not like that our copy-assignment is not 

    /// "Internal" symbol: element of the stack.
    struct stack_symbol_type : basic_symbol<by_state>
      /// Superclass.
      typedef basic_symbol<by_state> super_type;
      /// Construct an empty symbol.
      stack_symbol_type ();
      /// Move or copy construction.
      stack_symbol_type (YY_RVREF (stack_symbol_type) that);
      /// Steal the contents from \a sym to build this.
      stack_symbol_type (state_type s, YY_MOVE_REF (symbol_type) sym);
#if YY_CPLUSPLUS < 201103L
      /// Assignment, needed by push_back by some old implementations.
      /// Moves the contents of that.
      stack_symbol_type& operator= (stack_symbol_type& that);

It is not const to save cycle: it implements a sort of move in C++98.  So I 
guess your compiler fails to compile this?

#include <iostream>

struct foo
  foo(int v = 42)
    : val(v)
  foo& operator=(foo& rhs)
    this->val = rhs.val;
    return *this;

  int val;

  foo f(10);
  foo b(20);
  b = f;
  std::cout << f.val << ", " << b.val << '\n';

> That looks messy.
> Any suggestions on getting the tests to run ?

Try `make check -k` and `make check-local`.  The latter will run the full test 

Thanks for your help!

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