Hello,
I have task to make a program that multiplies polynomials as client(input/output indexes)-server(multiplying) using RPC. However when I try to compile it with gcc it gives the next info:
for client:
Udefined first
symbol referenced
Clnt_create client.o
for server:
Udefined first
symbol referenced
mlt_proc_1 mlt_svc.o
What could be done with it?(Some libs problems(?), mb missing some include files?)
Keep in mind that include files don't include libraries -- they only tell the compiler what functions ought to exist. So no matter how many include files you add, that will never resolve "undefined external" errors. "unresolved external" means more than one .c or .o file was required to completely build one executable, because they were using parts of each other -- or a library was missing.
You shouldn't be using raw gcc to build your RPC programs. There are many source files, some which need to be compiled together, some which shouldn't, and which belongs where kind of depends on what your RPC generator generated.
Usually you'd do this:
When I do that, I get:
So mlt_server needs mlt_svc.c, mlt_server.c, and mlt_xdr.c all at the same time.
And mlt_client needs mlt_clnt.c, mlt_client.c, and mlt_xdr.c all at the same time.
They also both need -lnsl.
---------- Post updated at 11:17 AM ---------- Previous update was at 11:13 AM ----------
Having done all of this, I finally see what the error is.
You should not be declaring clnt_create, by the way. That's a library function. I'm guessing you did so to get around 'undeclared function' warnings, but the real problem wasn't that it was undeclared, but that it didn't exist at all...
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