How to link

[WindowsDude]

Behold, WindowsDude is back!

I have problems linking stuff. I have this single library dpotrf that I want to use. I declare it like this:

extern void dpotrf_(char*, int*, double**, int*, int*);

And call it somewhere in main:

dpotrf_(&uplow, &order, A, &size, &info);

The problem is that I have to link it somehow. It is a .f file, and last time I worked with it it seems like I compiled it into a .o file using ifort I guess. So I have the .o file already.

I think I can include it like this, but I have no idea because the syntax isn't intuitive:
icc -std=c99 -03 main.c dpotrf.o

Ok great, I get different errors, now it seems like this library requires other libraries. Consequently I do like this:

icc -std=c99 -O3 main.c dpotrf.o lsame.o xerbla.o ilaenv.o dsyrk.o dpotf2.o dgemm.o dtrsm.o ddot.o dgemv.o dscal.o

But I still get complaints
xerbla.o: In function `xerbla_':
xerbla.f:(.text+0x45): undefined reference to `for_write_seq_fmt'
xerbla.f:(.text+0x62): undefined reference to `for_write_seq_fmt_xmit'
xerbla.f:(.text+0x7f): undefined reference to `for_stop_core'
ilaenv.o: In function `ilaenv_':
ilaenv.f:(.text+0x7a): undefined reference to `for_cpystr'

How can I avoid these godforsaken errors?

On some random site on the net I found that I should include this -L/opt/intel/Compiler/11.1/072/lib but it didn't help.

[WindowsDude]

WindowsDude unexpectedly found the answer by doing like this:

icc -L/opt/intel/Compiler/11.1/072/lib main.c -std=c99 -O3 dpotrf.o lsame.o xerbla.o ilaenv.o dsyrk.o dpotf2.o dgemm.o dtrsm.o ddot.o dgemv.o dscal.o -L/opt/intel/Compiler -Bstatic -lifport -lifcore -Bdynamic -limf


But the function completes in almost no time. Could be an error?

[unlimitedscolobb]

But the function completes in almost no time. Could be an error?

Well, if you don't get build errors or runtime errors, then you should just check what result your function yields. If it's okay, everything is okay (I hope I understood your question right.)

[WindowsDude]

Yes, unfortunately I had to do that. But I don't remember what was wrong.

This problem should be solved now. But the terminal thing from that other thread still bothers me.