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Subject:	installing lapack++ (g77 issues?)
From:	David Anthony Powell <s3024152 AT student DOT rmit DOT edu DOT au>
To:	cygwin AT cygwin DOT com
Date:	Wed, 12 Jun 2002 08:28:15 GMT
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Message-ID:	<1023870495.751s3024152@student.rmit.edu.au>

I've been having trouble installing lapack++ on cygwin (I 
just did an update today, so all tools are latest official 
cygwin versions).  I succeeded in installing atlas and 
lapack, and compiling lapack++ was fine, although I had to 
add -fpermissive to g++ to make it go.  When it comes to 
linking, it is looking for the library 
/usr/local/lang/SC1.0.1/libF77.a, which does not exist on my 
system.  When I take out the call I get the following 
undefined links (plus a heap more):

cd ./testing; make
make[1]: Entering directory `/cygdrive/d/lapack++/testing'
g++ -I../include -DCYGNUS -fpermissive  -o tGenSolve 
tGenSolve.o ../liblamatrix++.a ../liblapack++.a
 /usr/local/lib/tmglib.a ../libblas++.a  
/usr/local/lib/lapack.a  /usr/local/lib/liblapack.a /usr/lo
cal/lib/libf77blas.a /usr/local/lib/libcblas.a 
/usr/local/lib/libatlas.a ../liblamatrix++.a    -lm
../liblapack++.a(dtimmg.o)(.text+0x1135):dtimmg.c: undefined 
reference to `d_sign'

I would presume that this is because I haven't told it where 
to find the f77 standard libraries.  I can't see anything 
else particularly likely looking.  Should I try to hack the 
makefile to make it link with g77 rather than g++?  Is this 
a cygwin specific issue, or a more general gcc thing?

thanks

Davi


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