"Undefined reference to" error

talent422 · 01-12-2006, 02:10 AM

Hello,

I have installed a library (http_fetcher), and the files reside in /usr/lib.

When I try to use the functions and compile my program, I get this output:
/home/dfisher/netcolada/src/netcolada.cpp:73: undefined reference to `http_perror(char const*)'

I am pretty sure I need to specify, somewhere (I'm using KDevelop), where my libary files are located, but I do not know how to do this. I've tried passing "-lhttp_fetcher" to the compiler but I still receive the same error...

Now, I've looked through LinuxQuestions.org for similiar threads, but I can't nail down the problem...any advice would be appreciated. I'm sure this is some little thing I've overlooked...

zhy2111314 · 01-12-2006, 06:51 PM

After installing the library, did you run "ldconfig" to update the library in your system?

talent422 · 01-13-2006, 03:19 PM

Sure did. I even added the lib dirs to
/etc/ld.so.conf just to make sure they were captured. Maybe I'm calling
the fuction wrong?

Prototype in http_fetch: int http_fetch(const char *url, char **Filebuf);

How I use: checkerror = http_fetch(myurl, &myfilebuf);

There was an example program provided by the library creator, and it compiled just fine, so ther
e's some value I need to specify somewhere..I just have to find it...