Re: trouble with MakeMaker finding library
On Wed, 31 Mar 2004, Tim Harsch wrote:
Hi all,
My module requires a shared library. I'd like for the user to have that
library available at LD_LIBRARY_PATH and call it good enough. However, look
at the following. I get 'No library found' and note: both LD_LIBRARY_PATH
is set and -L specifies the location
***
use ExtUtils::MakeMaker;
die SGE_ROOT environment variable not defined unless my $SGE_ROOT =
$ENV{SGE_ROOT};
# See lib/ExtUtils/MakeMaker.pm for details of how to influence
# the contents of the Makefile that is written.
WriteMakefile(
'NAME' = 'Schedule::DRMAAc',
'VERSION_FROM' = 'DRMAAc.pm', # finds $VERSION
'PREREQ_PM' = {}, # e.g., Module::Name = 1.1
($] = 5.005 ?## Add these new keywords supported since 5.005
(ABSTRACT_FROM = 'DRMAAc.pm', # retrieve abstract from module
AUTHOR = 'Tim Harsch [EMAIL PROTECTED]') : ()),
'LIBS' = ['-ldrmaa', '-lsocket', '-lnsl', '-lm', '-lpthread'],
'DEFINE' = '', # e.g., '-DHAVE_SOMETHING'
# Insert -I. if you add *.h files later:
'INC' = -L$SGE_ROOT/lib/sol-sparc -I$SGE_ROOT/include,
# Un-comment this if you add C files to link with later:
'OBJECT' = '$(O_FILES)', # link all the C files too
);
***
[868] dna:/home/harsch/CVS/managers/drmaa echo $LD_LIBRARY_PATH
/home/harsch/CVS/managers/drmaa/Schedule:/home/harsch/tmp/SGE_040310/lib/sol
-sparc:/usr/local/lib:/usr/local/opt/SUNWspro/lib:/opt/SUNWspro/lib:/usr/ope
nwin/lib:/usr/dt/lib:/usr/4lib
[869] dna:/home/harsch/CVS/managers/drmaa echo $SGE_ROOT/
/home/harsch/tmp/SGE_040310/
[870] dna:/home/harsch/CVS/managers/drmaa perl Makefile.PL
Note (probably harmless): No library found for -ldrmaa
Writing Makefile for Schedule::DRMAAc
BTW, keep in mind that your usage of LIBS will use each array member as a
complete set of arguments to ld, which means that if you had the '-ldrmaa' as
the last array member you would have never even have gotten that warning. If
all those libraries are mandatory you need to pass them as a single array
member. Quoting the pod:
LIBS
An anonymous array of alternative library specifications to be
searched for (in order) until at least one library is found.
In any event, setting LD_LIBRARY_PATH won't override the search path when
testing for libraries, you'll need to add it to LIBS as well:
LIBS = [-L$SGE_ROOT/lib/sol-sparc -ldrmaa, ...]
--Arthur Corliss
Bolverk's Lair -- http://arthur.corlissfamily.org/
Digital Mages -- http://www.digitalmages.com/
Live Free or Die, the Only Way to Live -- NH State Motto
Re: trouble with MakeMaker finding library
Thank you. That was exactly it.
- Original Message -
From: Arthur Corliss [EMAIL PROTECTED]
To: Tim Harsch [EMAIL PROTECTED]
Cc: Perl Mod Authors [EMAIL PROTECTED]
Sent: Wednesday, March 31, 2004 6:16 PM
Subject: Re: trouble with MakeMaker finding library
On Wed, 31 Mar 2004, Tim Harsch wrote:
Hi all,
My module requires a shared library. I'd like for the user to have that
library available at LD_LIBRARY_PATH and call it good enough. However,
look
at the following. I get 'No library found' and note: both
LD_LIBRARY_PATH
is set and -L specifies the location
***
use ExtUtils::MakeMaker;
die SGE_ROOT environment variable not defined unless my $SGE_ROOT =
$ENV{SGE_ROOT};
# See lib/ExtUtils/MakeMaker.pm for details of how to influence
# the contents of the Makefile that is written.
WriteMakefile(
'NAME' = 'Schedule::DRMAAc',
'VERSION_FROM' = 'DRMAAc.pm', # finds $VERSION
'PREREQ_PM' = {}, # e.g., Module::Name = 1.1
($] = 5.005 ?## Add these new keywords supported since 5.005
(ABSTRACT_FROM = 'DRMAAc.pm', # retrieve abstract from module
AUTHOR = 'Tim Harsch [EMAIL PROTECTED]') : ()),
'LIBS' = ['-ldrmaa', '-lsocket', '-lnsl', '-lm', '-lpthread'],
'DEFINE' = '', # e.g., '-DHAVE_SOMETHING'
# Insert -I. if you add *.h files later:
'INC' = -L$SGE_ROOT/lib/sol-sparc -I$SGE_ROOT/include,
# Un-comment this if you add C files to link with later:
'OBJECT' = '$(O_FILES)', # link all the C files too
);
***
[868] dna:/home/harsch/CVS/managers/drmaa echo $LD_LIBRARY_PATH
/home/harsch/CVS/managers/drmaa/Schedule:/home/harsch/tmp/SGE_040310/lib/sol
-sparc:/usr/local/lib:/usr/local/opt/SUNWspro/lib:/opt/SUNWspro/lib:/usr/o
pe
nwin/lib:/usr/dt/lib:/usr/4lib
[869] dna:/home/harsch/CVS/managers/drmaa echo $SGE_ROOT/
/home/harsch/tmp/SGE_040310/
[870] dna:/home/harsch/CVS/managers/drmaa perl Makefile.PL
Note (probably harmless): No library found for -ldrmaa
Writing Makefile for Schedule::DRMAAc
BTW, keep in mind that your usage of LIBS will use each array member as a
complete set of arguments to ld, which means that if you had the '-ldrmaa'
as
the last array member you would have never even have gotten that warning.
If
all those libraries are mandatory you need to pass them as a single array
member. Quoting the pod:
LIBS
An anonymous array of alternative library specifications to be
searched for (in order) until at least one library is found.
In any event, setting LD_LIBRARY_PATH won't override the search path when
testing for libraries, you'll need to add it to LIBS as well:
LIBS = [-L$SGE_ROOT/lib/sol-sparc -ldrmaa, ...]
--Arthur Corliss
Bolverk's Lair -- http://arthur.corlissfamily.org/
Digital Mages -- http://www.digitalmages.com/
Live Free or Die, the Only Way to Live -- NH State Motto
