g++ error on Solaris/Sparc undefined reference to std::cout

[Jonathan Wakely]

On 19 April 2011 08:43, Qi Zuo wrote:
>
> May I ask how did you configure the compiler and library path after
> you compiled GCC4.6.0?

You configure the compiler *before* you build it, not after.

> My problem seems to be something wrong with the
> LD_LIBRARY_PATH.
> Initially the compiled GCC can't find the MPC it uses. So the path of
> mpc library must be set. I used LD_LIBRARY_PATH

Yes, if you install gmp, mpfr and mpc without using --disable-shared
then gcc depends on the shared libraries at runtime.

See http://advogato.org/person/redi/diary/240.html (and the pages it
links to) for a simple way to build gcc so you don't need to set
LD_LIBRARY_PATH to use it.

> -bash-3.00$ export LD_LIBRARY_PATH=/lab/home/zuoqi/gcc32/gcc-gnu-ccs/lib
> -bash-3.00$ echo $LD_LIBRARY_PATH
> /lab/home/zuoqi/gcc32/gcc-gnu-ccs/lib
>
> Then, when I compile the hello.cpp program, I got unreferenced
> std::cout problem.

Those symbols should be defined in libstdc++, maybe there's a symbol
versioning problem.