PDL::Core::Dev

Dev(3pm)              User Contributed Perl Documentation             Dev(3pm)



NAME
       PDL::Core::Dev - PDL development module

DESCRIPTION
       This module encapsulates most of the stuff useful for PDL development
       and is often used from within Makefile.PL's.

SYNOPSIS
          use PDL::Core::Dev;

FUNCTIONS
       isbigendian

       Is the machine big or little endian?

         print "Your machins is big endian.\n" if isbigendian();

       returns 1 if the machine is big endian, 0 if little endian, or dies if
       neither.  It uses the "byteorder" element of perl's %Config array.

          my $retval = isbigendian();

       trylink

       a perl configure clone

         if (trylink 'libGL', '', 'char glBegin(); glBegin();', '-lGL') {
           $libs = '-lGLU -lGL';
           $have_GL = 1;
         } else {
           $have_GL = 0;
         }
         $maybe =
           trylink 'libwhatever', $inc, $body, $libs, $cflags,
               {MakeMaker=>1, Hide=>0, Clean=>1};

       Try to link some C-code making up the body of a function with a given
       set of library specifiers

       return 1 if successful, 0 otherwise

          trylink $infomsg, $include, $progbody, $libs [,$cflags,{OPTIONS}];

       Takes 4 + 2 optional arguments.

       o    an informational message to print (can be empty)

       o    any commands to be included at the top of the generated C program
            (typically something like "#include "mylib.h"")

       o    the body of the program (in function main)

       o    library flags to use for linking. Preprocessing by MakeMaker
            should be performed as needed (see options and example).

       o    compilation flags. For example, something like "-I/usr/local/lib".
            Optional argument. Empty if omitted.

       OPTIONS
            MakeMaker
                Preprocess library strings in the way MakeMaker does things.
                This is advisable to ensure that your code will actually work
                after the link specs have been processed by MakeMaker.

            Hide
                Controls if linking output etc is hidden from the user or not.
                On by default except within the build of the PDL distribution
                where the config value set in perldl.conf prevails.

            Clean
                Remove temporary files. Enabled by default. You might want to
                switch it off during debugging.



perl v5.8.8                       2002-05-21                          Dev(3pm)