Re: including a lib header file
Howard Gardner wrote:
mlimber wrote:
Gary Wessle wrote:
It is a linker error, and it appears that you are not linking all the
libraries you need to build this program. However, this is not a C++
*language* question (the topic of this forum). You should ask on
newsgroup that deals with your development platform or the library in
question. See this FAQ for what is on-topic here and for some ideas of
where else you could ask:
He's struggling through the standard C++ interface to a library:
includes and links. It *is* a c++ language issue.
I grant that there is more gray area than FAQ 5.9 allows when read
strictly (and you'll see that I respond to questions here accordingly),
but ISTM that he's dealing with how to use a third-party library in a
particular development environment. That's no more a C++ language
question than, say, how to statically link an MFC app on Windows.
The answer is the same for every library/compiler combination in the
known universe: "The linker is missing library files. RTF compiler M to
learn what library files are and how to link them, then RTF library M to
learn which files you need for this library." Even if he were to find a
group dedicated to using this library with this compiler, the answer is
still "RTFMs."
The OP should ask his question in a newsgroup or other forum dedicated
either to his development environment (UNIX and/or gcc) or to the
third-party library in question to get that answer (or a more helpful
one, such as "Add -lgslcblas -lm to your link line because ..."). The
fact that the minimal answer is always RTM doesn't mean that this is
the appropriate place for him to receive that answer, and the OP's
follow-up question to your answer seems to illustrate that answering
non-topical questions encourages more of the same.
Cheers! --M