Why can't my Fortran code find the subroutine DEVCRG?

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The user is encountering a linking error in their Fortran code, specifically error LNK2001, which indicates an unresolved external symbol related to the subroutine DEVCRG. This subroutine is part of the IMSL® Fortran Numerical Math Library, which must be linked to the code for successful compilation. The user is compiling with Fortran Powerstation 4.0 on Windows XP SP2 and is seeking guidance on obtaining and linking the IMSL library. It is noted that the Intel Fortran Compiler, which includes IMSL, is necessary for use with Visual Studio. An alternative suggested is using gfortran from the GCC, which is a free option.
irida65
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Hello,
I have a code in Fortran that I can compile but when I try to build it I get the following messages:
error LNK2001: unresolved external symbol _DEVCRG@24
fatal error LNK1120: 1 unresolved externals

I guess that it does not understand it cannot find the subroutine DEVCRG, but I do not know the reason why...
Please help
 
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Hi
DEVCRG is a library routine belonging to the IMSL® Fortran Numerical Math Library.
I guess you need to link against this library to get it to work.
Which compiler are you using and which OS?
 
Thanks for the reply,
I compile with Fortran Powerstation 4.0, Microsoft developer studio and my OS is windows xp sp2. Please tell me where can I download this library and how can I link it to my code?
 
Hey
I found the following forum thread concerning a similar problem
http://forums.vni.com/showthread.php?t=531"
If I have understood everything correctly you have to buy the Intel Fortran Compiler together with IMSL if you want to use Visual Studio.
One free alternative is to use gfortran which is a part of GCC (http://gcc.gnu.org/" ).
 
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