Bug#101223: Undefined reference to 'cout'

[Gordon Sadler <gbsadler1@lcisp.com>]

I believe I've found a partial cause/solution.

Re:bugs.debian.org/98939
I have LIBRARY_PATH set in my environment:
echo $LIBRARY_PATH
/usr/local/kde2.2/lib:/usr/local/qt2.3/lib:/usr/local/lib

This to to work-around something I think is broken with the linker.

According to the gcc info pages:
The value of `LIBRARY_PATH' is a colon-separated list of
directories, much like `PATH'.  When configured as a native
compiler, GCC tries the directories thus specified when searching
for special linker files, if it can't find them using
`GCC_EXEC_PREFIX'.  Linking using GCC also uses these directories
when searching for ordinary libraries for the `-l' option (but
directories specified with `-L' come first).

Note below the order of the -L args. /usr/lib/gcc-lib/i386-linux/2.95.4
comes last... Shouldn't it be first? Maybe a change to the specs? It so
happens I have gcc-3 and libstdc++-v3 installed in /usr/local, so I can
compile this on a few ways:
1. unset LIBRARY_PATH (no good if using other /usr/local/...)
2. use -L/usr/lib on commandline (highly discouraged)
3. get ld fixed (see above for bug report re:)
4. get -L/usr/lib/gcc-lib/i386-linux/2.95.4 listed first (as that is the
   location of libstdc++.so symlink)

Suggestions?

On Sun, Jun 17, 2001 at 11:24:41PM +0200, Matthias Klose wrote:
> I am unable to reproduce this in unstable with 2.95.4-0.010604.
> 
> Gordon Sadler writes:
>  > Package: g++-2.95
>  > Version: 1:2.95.4-0.010604
>  > Severity: important
>  > 
>  > I have no idea when this started. Perhaps a packaging bug?
>  > 
>  > If you compile the attached 'hello' program:
>  > g++ -v bar.cpp
>  > Reading specs from /usr/lib/gcc-lib/i386-linux/2.95.4/specs
>  > gcc version 2.95.4 20010604 (Debian prerelease)
>  >  /usr/lib/gcc-lib/i386-linux/2.95.4/cpp0 -lang-c++ -v -D__GNUC__=2 -D__GNUG__=2 -D__GNUC_MINOR__=95 -D__cplusplus -D__ELF__ -Dunix -D__i386__ -Dlinux -D__ELF__ -D__unix__ -D__i386__ -D__linux__ -D__unix -D__linux -Asystem(posix) -D__EXCEPTIONS -Acpu(i386)
>  >  -Amachine(i386) -Di386 -D__i386 -D__i386__ bar.cpp /tmp/ccf6bars.ii
>  >  GNU CPP version 2.95.4 20010604 (Debian prerelease) (i386 Linux/ELF)
>  >  #include "..." search starts here:
>  >  #include <...> search starts here:
>  > /usr/lib/gcc-lib/i386-linux/2.95.4/../../../../include/g++-3
>  > /usr/lib/gcc-lib/i386-linux/2.95.4/include
>  > /usr/include
>  > End of search list.
>  > The following default directories have been omitted from the search path:
>  > /usr/lib/gcc-lib/i386-linux/2.95.4/../../../../i386-linux/include
>  > End of omitted list.
>  > /usr/lib/gcc-lib/i386-linux/2.95.4/cc1plus /tmp/ccf6bars.ii -quiet -dumpbase bar.cc -version -o /tmp/ccqPnv88.s
>  > GNU C++ version 2.95.4 20010604 (Debian prerelease) (i386-linux) compiled by GNU C version 2.95.4 20010604 (Debian prerelease).
>  > as -V -Qy -o /tmp/ccBAeHI5.o /tmp/ccqPnv88.s
>  > GNU assembler version 2.11.90.0.7 (i386-linux) using BFD version 2.11.90.0.7
>  > /usr/lib/gcc-lib/i386-linux/2.95.4/collect2 -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 /usr/lib/crt1.o /usr/lib/crti.o /usr/lib/gcc-lib/i386-linux/2.95.4/crtbegin.o -L/usr/local/kde2.2/lib -L/usr/local/qt2.3/lib -L/usr/local/lib -L/usr/lib/gcc-lib/i386-linux/2.95.4 /tmp/ccBAeHI5.o -lstdc++ -lm -lgcc -lc -lgcc /usr/lib/gcc-lib/i386-linux/2.95.4/crtend.o /usr/lib/crtn.o
>  > /tmp/ccBAeHI5.o: In function `main':
>  > /tmp/ccBAeHI5.o(.text+0xf): undefined reference to `cout'
>  > /tmp/ccBAeHI5.o(.text+0x14): undefined reference to `ostream::operator<<(char const *)'
>  > collect2: ld returned 1 exit status
>  > 
>  > I've tried different versions (using namespace std, std::cout, cout) 
>  > None of them will link here, same error for all. When compiled with
>  > g++-3.0 I have no problems.
>  > 
>  > *** bar.cpp
>  > #include <iostream>
>  > 
>  > int main ()
>  > {
>  >   std::cout << "hello ...\n";
>  >   return 0;
>  > }

-- 
Gordon Sadler