Re: undefined reference to 'something'
Hi Kevin:
Thank you very much for your reply!
Your are absolute right. The wsmp was written by Fortran.
After I added the underscore, I have new "undefined reference" coming up.
Here is a few examples of them:
: undefined reference to `ftn_i_jishft'
../lib/libwsmp64.a(torder.o)(.text+0x11f9): In function `fllagbgref5_':
: undefined reference to `ftn_i_jishft'
../lib/libwsmp64.a(torder.o)(.data+0x10): In function `.C4_283':
: undefined reference to `pgf90_compiled'
../lib/libwsmp64.a(kl.o)(.text+0x99): In function `fllagbkref_':
: undefined reference to `__mth_i_dlog'
../lib/libwsmp64.a(kl.o)(.text+0xbb): In function `fllagbkref_':
: undefined reference to `__mth_i_dlog'
../lib/libwsmp64.a(kl.o)(.text+0x2479): In function `fllaglastbk_':
: undefined reference to `__mth_i_dlog'
../lib/libwsmp64.a(kl.o)(.text+0x249b): In function `fllaglastbk_':
: undefined reference to `__mth_i_dlog'
../lib/libwsmp64.a(kl.o)(.text+0x4847): In function `bkref2_':
: undefined reference to `__mth_i_dlog'
../lib/libwsmp64.a(kl.o)(.text+0x61ef): more undefined references to
`__mth_i_dl
og' follow
../lib/libwsmp64.a(kl.o)(.data+0x40): In function `.C4_365':
: undefined reference to `pgf90_compiled'
../lib/libwsmp64.a(vkl.o)(.text+0x3dd): In function `lastvk2_':
: undefined reference to `__mth_i_dlog'
Could you please tell me how to solve those errors. They are not functions
in wsmp, but called by wsmp.
Thanks a lot!
Yinghong
On Tue, 12 Jul 2005, Kevin B. McCarty wrote:
> Yinghong Zhou wrote:
>
> > I also used rtc() in my program. The linker doesn't report error on this
> > one. Following is how I declare the functions in my program:
> >
> > extern "C" {
> > void wssmp( int* N, int* IA, int* JA, double* AVALS, double* DIAG,
> > int* PERM, int* INVP, double* B, int *LDB,
> > int* NRHS, double* AUX, int* NAUX, int* MRP, int* IPARM,
> > double* DPARM );
> > double rtc();
> > void wsetmaxthrds(int*);
> > void wsetnobigmal();
> > }
>
> With functions having this sort of signature, I am guessing that the
> library was written in FORTRAN?
>
> > Here is how my Makefile looks:
> > all:
> > g++ -o wgsmp wgsmp_ex1.cpp -L../lib/libgoto_opteron-64-r0.99-3.so
> > -L../lib -lwsmp64 -lpthread -Wno-deprecated
> >
> > The author said it may have something to do with the compiler inserting
> > trailing underscores, etc.
>
> G77 for reasons unknown likes to add an underscore to the end of the
> names of functions defined in FORTRAN. So in your code, you probably
> need to declare and use wssmp_() instead of wssmp(), etc., everywhere.
> To avoid the need for the ugly underscore, you can
>
> #define wssmp wssmp_
>
> (etc.) at the top of the file where you declare the functions.
>
> regards,
>
> --
> Kevin B. McCarty <kmccarty@princeton.edu> Physics Department
> WWW: http://www.princeton.edu/~kmccarty/ Princeton University
> GPG: public key ID 4F83C751 Princeton, NJ 08544
>
>
> --
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