undefined reference link errors

[Srini]

Hello,

I searched thru this group for topics relevant to my issue. Found many
of them, but none of them seemed to solve my problem.

These are the errors I'm getting...

[snip]

raw_request.o(.text+0x29): In function
`RawRequest::RawRequest[not-in-charge]()':
: undefined reference to `Buffer::Buffer[in-charge]()'
raw_request.o(.text+0x83): In function
`RawRequest::RawRequest[in-charge]()':
: undefined reference to `Buffer::Buffer[in-charge]()'
raw_request.o(.text+0x396): In function `RawRequest::doIO()':
: undefined reference to `Configuration::getDevice(unsigned,
std::basic_string<char, std::char_traits<char>, std::allocator<char>
>&)'
raw_request.o(.text+0x3f7): In function `RawRequest::doIO()':
: undefined reference to `Configuration::getBlockSize()'
collect2: ld returned 1 exit status

[/snip]


I've the object files of the 4 class implementations...

request.o for "class Request"
raw_request.o for "class RawRequest : public Request"
configuration.o for "class Configuration"
buffer.o for "class Buffer"

'Request' class has a virtual destructor and I've provided the
definition for it in request.cpp.
'Configuration' class is a singleton class and there's a static pointer
to the only object within the class.
None of these are template classes.

I'm compiling each of them as follows...

g++ -c -ansi buffer.cpp
g++ -c -ansi request.cpp
g++ -c -ansi raw_request.cpp
g++ -c -ansi configuration.cpp

I've a test program...

---

#include "raw_request.h"
#include "configuration.h"

std::string file("sample.conf");
Configuration globalConf( file );

int main()
{
  RawRequest req(WRITE, 0, 0, 0xcafebabe);
  req.doIO();
  return 0;
}

---

g++ tstrawreq.cpp buffer.o request.o raw_request.o configuration.o

This gives me the errors that I mentioned earlier... Please let me know
what I'm doing wrong in here. Thanks for your time in advance.

Regards, 
Srinivas