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20011127: compiling f77 code that calls gempak subroutines
- Subject: 20011127: compiling f77 code that calls gempak subroutines
- Date: Wed, 28 Nov 2001 13:02:04 -0700
>From: Paul Markowski <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200111271600.fARG00N17889
>
>Hi,
>
>Can you tell me how to compile f77 code containing calls to gempak
>subroutines (e.g., sf_opnf, sf_tstn, sf_rdat)? I.e., what libraries to I
>need to link to, and are all of these in $GEMLIB? I'm running Red Hat
>linux 7.0, for what it's worth.
>
>Thanks,
>Paul Markowski
>
>__________________
>Dr. Paul Markowski
>Department of Meteorology
>Pennsylvania State University
>503 Walker Building
>University Park, PA 16802
>email: address@hidden
>phone: (814) 865-0478
>fax: (814) 865-3663
>web: http://www.meteo.psu.edu/~marko/
>
>
>
Paul,
The routines that start with xx_xxxx() are all in gemlib.a. However,
these routines may call other routines in other libraries -
typically cgemlib.a or the GEMPLT routines via appl.a.
The general g77 definitions in $CONFIGDIR/Makeinc.linux for compiling
use the flag: -fno-second-underscore
A typical compile line would look like:
g77 -fno-second-underscore (your source).o $GEMLIB/gemlib.a $GEMLIB/appl.a \
$GEMLIB/syslib.a $GEMLIB/cgemlib.a $GEMLIB/gemlib.a
You can take advantage of the platform configurations already defined
in the $CONFIGDIR by following the Makefile example
such as $GEMPAK/source/programs/sf/sflist/Makefile.
Steve Chiswell
