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

[Qi Zuo]

When add -Wl,-t, the information is as following

-bash-3.00$ /lab/home/zuoqi/gcc32/gcc-gnu-ccs/bin/g++ hello.cpp -Wl,-t
/usr/local/bin/ld: mode elf32_sparc_sol2
/lab/home/zuoqi/gcc32/gcc-gnu-ccs/lib/gcc/sparc-sun-solaris2.10/4.6.0/crt1.o
/lab/home/zuoqi/gcc32/gcc-gnu-ccs/lib/gcc/sparc-sun-solaris2.10/4.6.0/crti.o
/usr/ccs/lib/values-Xa.o
/lab/home/zuoqi/gcc32/gcc-gnu-ccs/lib/gcc/sparc-sun-solaris2.10/4.6.0/crtbegin.o
/var/tmp//cc6yKDr2.o
-lstdc++ (/lab/home/zuoqi/gcc32/gcc-gnu-ccs/lib/gcc/sparc-sun-solaris2.10/4.6.0/../../../libstdc++.so)
-lm (/usr/lib/libm.so)
-lgcc_s (/lab/home/zuoqi/gcc32/gcc-gnu-ccs/lib/gcc/sparc-sun-solaris2.10/4.6.0/../../../libgcc_s.so)
-lc (/usr/lib/libc.so)
-lgcc_s (/lab/home/zuoqi/gcc32/gcc-gnu-ccs/lib/gcc/sparc-sun-solaris2.10/4.6.0/../../../libgcc_s.so)
-lc (/usr/lib/libc.so)
/lab/home/zuoqi/gcc32/gcc-gnu-ccs/lib/gcc/sparc-sun-solaris2.10/4.6.0/crtend.o
/lab/home/zuoqi/gcc32/gcc-gnu-ccs/lib/gcc/sparc-sun-solaris2.10/4.6.0/crtn.o
/var/tmp//cc6yKDr2.o: In function `main':
hello.cpp:(.text+0x20): undefined reference to `std::cout'
hello.cpp:(.text+0x24): undefined reference to `std::cout'
hello.cpp:(.text+0x48): undefined reference to
`std::basic_ostream<char, std::char_traits<char>
>::operator<<(std::basic_ostream<char, std::char_traits<char> >&
(*)(std::basic_ostream<char, std::char_traits<char> >&))'
/usr/local/bin/ld: link errors found, deleting executable `a.out'
collect2: ld returned 1 exit status


2011/4/19 Ian Lance Taylor <iant@google.com>:
> Qi Zuo <bitsunnyday@gmail.com> writes:
>
>> Following your instruction, I checked the libstdc++.so. But I don't
>> know whether I've done the right check.
>
> It looks right.  This is a strange problem.
>
> You said that you are using GNU ld.  Try compiling hello.cpp with
> -Wl,-t.  That will show you the exact libstdc++ which the linker is
> opening.
>
> Ian
>



-- 
Regards
Qi Zuo

School Of Computer Science and Technology
Beijng Institute of Technology, China, 100081