library management in XS

[pdupre]

Because the package Math::GSL has not been updated for using gsl-2.

Thus, I installed gsl-1 in addition and I compile Math:GSL. Now, I have my own perl applications which use gsl and Math:GSL, I am trying to have only gsl-1 used.

Hence, in my Makefile.PL, I set:

LIBS                => ["-lm -L$ENV{GSL_LIB} -lgsl"],

When I make perl Makefile.PL, a Makefile is generated with:

EXTRALIBS = -L/usr/local/gsl-1/lib -lgsl
LDLOADLIBS = -lm -L/usr/local/gsl-1/lib -lgsl
LD_RUN_PATH = /usr/local/gsl-1/lib

I though it was OK, but when I run make, a new Makefile is generated without the LIBS correct, ie.:

EXTRALIBS = -lgsl
LDLOADLIBS = -lm -lgsl
LD_RUN_PATH = /usr/lib

Why such a behavior ?

How can I control it ?

Thank

Patrick Dupre

[kcott]

G'day Patrick,

I suspect that the '-', in '/usr/local/gsl-1/lib', may be the cause of the problem. It's a special character in many places, and may be interpreted as such elsewhere.

[See how EXTRALIBS and LDLOADLIBS are missing the -L/usr/local/gsl-1/lib part, but otherwise follow your assignments. LD_RUN_PATH, with perhaps no effective assignment, might have retained its previous value or been assigned a default, i.e. /usr/lib.]

Some things to try: escape the dash; quote the path; create a symlink.

[Laurent_R]

This thread might help: (tye)Re: programatically setting the LD_LIBRARY_PATH

Update: changed the link.

[pdupre]

This does not really help because

exec 'env', $^X, $0, @ARGV ;

does not work on my machine

Patrick Dupre

[Anonymous Monk]

Math::GSL doesn't use a Makefile.PL

What are you talking about?

[pdupre]

I am talking about my own applications using both Math:GSL and gsl

Patrick Dupre

[Anonymous Monk]

Ok,

Regular ExtUtils::MakeMaker will not edit/update/modify the generated Makefile when you run "make"

If this is what happens then its a bug, either in MakeMaker or your Makefile.PL

I suggest you try that again with the very latest version of ExtUtils::MakeMaker,

and post some code, maybe a minimal example like SOso-0.01.patch.txt