[SAC-HELP] Compiling a c code with subroutines from sacio.a

[Brian Savage]

Dear Shahar,

You may need to add an underscore to the function call within your C  
code.
MacSAC is a fortran version of SAC from the original lineage of SAC,  
before SAC2000 / SAC at IRIS.

The function in the sacio.a library probably have trailing underscores  
in them.

This is not an issue for the SAC version from IRIS.

See: http://www.ibiblio.org/pub/languages/fortran/ch1-11.html

Brian Savage
savage at uri.edu



On Jun 8, 2010, at  10:12 AM , Shahar Shani Kadmiel wrote:

> I have written a short code in c utilizing the "wsac1" subroutine.
> When compiling, I get this:
>
> Undefined symbols:
>   "_wsac1", referenced from:
>       _main in cc7iJC76.o
> ld: symbol(s) not found
> collect2: ld returned 1 exit status
>
> This is the only problem and when I comment out the line containing  
> wsac1 the program compiles with no errors.
> The part after _main, where it says "cc7iJC76.o", changes with every  
> try.
>
> This is my compile line:
>
> cc codeName.c -o codeName -lm -m32 sacio.a
>
> where sacio.a is in the same folder as codeName.c.
> I have tried giving the full path of sacio.a as-well as changing the  
> order of appearance of the arguments in the compile line.
>
> I know that sacio.a is being read because when -m32 wasn't specified  
> I got a warning stating:
>
> ld: warning: in sacio.a, file was built for unsupported file format  
> which is not the architecture being linked (x86_64)
>
> I am using MacSAC 10.6f-grh104 and the sacio.a that came with it.
> I am currently trying to compile this code on a Mac running OS X  
> 10.6.3 (i7 processor) but I intend to compile this on a linux  
> machine that does not have sac installed. Can I copy the sacio.a  
> that came with MacSAC or should I use a different archive file?
>
> Thanks for all your help.
> Shahar
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