Re: build broken -groff and c++ compiler

[Riccardo Mottola <riccardo.mottola%libero.it@localhost>]

Hi,

Christos Zoulas wrote:
> #include <iostream>
> int
> main(int argc, char *argv[])
> {
>          std::cerr << "Hello World" << std::endl;
>          return 0;
> }
it compiles, but fails:

grid$ g++ hello.cc
grid$ ./a.out
[1]   Segmentation fault (core dumped) ./a.out

grid$ ldd a.out
a.out:
        -lstdc++.7 => /usr/lib/libstdc++.so.7
        -lgcc_s.1 => /usr/lib/libgcc_s.so.1
        -lm.0 => /usr/lib/libm.so.0
        -lc.12 => /usr/lib/libc.so.12

Program received signal SIGSEGV, Segmentation fault.
0xbbb5c338 in std::ostream::sentry::sentry(std::ostream&) ()
   from /usr/lib/libstdc++.so.7
(gdb) bt
#0  0xbbb5c338 in std::ostream::sentry::sentry(std::ostream&) ()
   from /usr/lib/libstdc++.so.7
#1  0xbbb5cae9 in std::basic_ostream<char, std::char_traits<char> >& 
std::__ostream_insert<char, std::char_traits<char> 
>(std::basic_ostream<char, std::char_traits<char> >&, char const*, int) 
() from /usr/lib/libstdc++.so.7
#2  0xbbb5cf1c in std::basic_ostream<char, std::char_traits<char> >& 
std::operator<< <std::char_traits<char> >(std::basic_ostream<char, 
std::char_traits<char> >&, char const*) () from /usr/lib/libstdc++.so.7
#3  0x0804898e in main ()


Riccardo

PS: building gcc naively as I proposed, fails when compiling "libm"...