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**To**:**Russell McManus <russell_mcmanus%yahoo.com@localhost>****Subject**:**Re: problem with math/blas/files/Makefile.blas****From**:**Mark Davies <mark%mcs.vuw.ac.nz@localhost>**- Date: Fri, 5 Dec 2008 08:15:33 +1300

On Thursday 04 December 2008 09:29:05 Russell McManus wrote: > ImportError: /glib/pkgsrc-2008Q3/x86_64/lib/libF77.so.0: undefined > symbol: MAIN__ > > This problem is similar to the one described here: > > http://mail-index.netbsd.org/pkgsrc-users/2008/10/21/msg008397.html > > From the above error message, one might think that the problem is > related to libF77.so.0. However the problem is actually in math/blas. No the problem is actually with f2c. Anything built with f2c will have a reference to MAIN__ (the "fortran main") so the application has to provide one - normally a null function int MAIN__() { return 0; } Many fortran using applications have this hack already but increasingly newer ones don't as other/newer fortran compilers don't need it. > I also think that math/lapack is affected in a similar way. > What is the correct fix? Provide the function or compile all fortran with a different compiler. Attached is the patch that deals with it in the wip/py-numpy package. cheers mark

$NetBSD$ --- numpy/linalg/lapack_litemodule.c.orig 2008-05-26 19:39:50.000000000 +1200 +++ numpy/linalg/lapack_litemodule.c @@ -16,6 +16,8 @@ typedef struct { float r, i; } f2c_compl typedef struct { double r, i; } f2c_doublecomplex; /* typedef long int (*L_fp)(); */ +int FNAME(MAIN_)() { return 0; } + extern int FNAME(dgeev)(char *jobvl, char *jobvr, int *n, double a[], int *lda, double wr[], double wi[], double vl[], int *ldvl, double vr[], int *ldvr,

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**References**:**problem with math/blas/files/Makefile.blas***From:*Russell McManus

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