[Rd] Linking With External Lapack: Segfault

From: Imanpreet <imanpreet_at_gmail.com>
Date: Fri, 22 Aug 2008 20:02:02 +0530

Hello All,

          I have been trying to figure out on linking R with an external lapack. Even though the R-admin recommends against doing so, our requirements force us to link it to an external lapack. I am running configure with the following parameter.

*./configure --with-lapack="-L/usr/lib -llapack -lcblas" *

The above seems to be having NO effect. However, later I tried replacing libRlapack, libblas and lapack.so from $(R_HOME)/lib and $(R_HOME)/modules/ with external lapack. Firstly, is this good?

Secondly, after doing the above. When I do.

When I do

The following is the error that I am getting:

*Error: segfault from C stack overflow*

On debugging the error was in La_Init() at Line 61


I am getting a SIGSEGV over here.

Could anybody provide an pointers or and tips on how to link R with an external lapack? And also possibly the cause of the above issues?

TIA. Regards,

Imanpreet Singh Arora

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