package ExtUtils::Liblist;
-use vars qw($VERSION);
+
+use 5.005_64;
# Broken out of MakeMaker from version 4.11
-$VERSION = substr q$Revision: 1.25 $, 10;
+our $VERSION = substr q$Revision: 1.25 $, 10;
use Config;
use Cwd 'cwd';
} elsif (-f ($fullname="$thispth/Slib$thislib$Config_libext")){
} elsif ($^O eq 'dgux'
&& -l ($fullname="$thispth/lib$thislib$Config_libext")
- && readlink($fullname) =~ /^elink:/) {
+ && readlink($fullname) =~ /^elink:/s) {
# Some of DG's libraries look like misconnected symbolic
# links, but development tools can follow them. (They
# look like this:
# Now update library lists
# what do we know about this library...
- my $is_dyna = ($fullname !~ /\Q$Config_libext\E$/);
+ my $is_dyna = ($fullname !~ /\Q$Config_libext\E\z/);
my $in_perl = ($libs =~ /\B-l\Q$ {thislib}\E\b/s);
# Do not add it into the list if it is already linked in
my $search = 1;
my($fullname, $thislib, $thispth);
+ # add "$Config{installarchlib}/CORE" to default search path
+ push @libpath, "$Config{installarchlib}/CORE";
+
foreach (Text::ParseWords::quotewords('\s+', 0, $potential_libs)){
$thislib = $_;
# if searching is disabled, do compiler-specific translations
unless ($search) {
- s/^-L/-libpath:/ if $VC;
s/^-l(.+)$/$1.lib/ unless $GC;
+ s/^-L/-libpath:/ if $VC;
push(@extralibs, $_);
$found++;
next;
next;
}
- my($found_lib)=0;
+ my $found_lib = 0;
foreach $thispth (@searchpath, @libpath){
unless (-f ($fullname="$thispth\\$_")) {
warn "'$thislib' not found as '$fullname'\n" if $verbose;
}
# do another pass with (or without) leading 'lib' if they used -l
- if (!$found_lib and $thislib =~ /^-l/) {
- if ($GC) { s/^lib//i }
- else { $_ = "lib$_" }
- goto LOOKAGAIN unless $secondpass++;
+ if (!$found_lib and $thislib =~ /^-l/ and !$secondpass++) {
+ if ($GC) {
+ goto LOOKAGAIN if s/^lib//i;
+ }
+ elsif (!/^lib/i) {
+ $_ = "lib$_";
+ goto LOOKAGAIN;
+ }
}
# give up
return ('', '', $crtlstr, '');
}
- my(@dirs,@libs,$dir,$lib,%sh,%olb,%obj,$ldlib);
+ my(@dirs,@libs,$dir,$lib,%found,@fndlibs,$ldlib);
my $cwd = cwd();
my($so,$lib_ext,$obj_ext) = @Config{'so','lib_ext','obj_ext'};
# List of common Unix library names and there VMS equivalents
warn "\tChecking $name\n" if $verbose > 2;
if (-f ($test = VMS::Filespec::rmsexpand($name))) {
# It's got its own suffix, so we'll have to figure out the type
- if ($test =~ /(?:$so|exe)$/i) { $type = 'sh'; }
- elsif ($test =~ /(?:$lib_ext|olb)$/i) { $type = 'olb'; }
+ if ($test =~ /(?:$so|exe)$/i) { $type = 'SHR'; }
+ elsif ($test =~ /(?:$lib_ext|olb)$/i) { $type = 'OLB'; }
elsif ($test =~ /(?:$obj_ext|obj)$/i) {
warn "Note (probably harmless): "
."Plain object file $test found in library list\n";
- $type = 'obj';
+ $type = 'OBJ';
}
else {
warn "Note (probably harmless): "
."Unknown library type for $test; assuming shared\n";
- $type = 'sh';
+ $type = 'SHR';
}
}
elsif (-f ($test = VMS::Filespec::rmsexpand($name,$so)) or
-f ($test = VMS::Filespec::rmsexpand($name,'.exe'))) {
- $type = 'sh';
+ $type = 'SHR';
$name = $test unless $test =~ /exe;?\d*$/i;
}
elsif (not length($ctype) and # If we've got a lib already, don't bother
( -f ($test = VMS::Filespec::rmsexpand($name,$lib_ext)) or
-f ($test = VMS::Filespec::rmsexpand($name,'.olb')))) {
- $type = 'olb';
+ $type = 'OLB';
$name = $test unless $test =~ /olb;?\d*$/i;
}
elsif (not length($ctype) and # If we've got a lib already, don't bother
-f ($test = VMS::Filespec::rmsexpand($name,'.obj')))) {
warn "Note (probably harmless): "
."Plain object file $test found in library list\n";
- $type = 'obj';
+ $type = 'OBJ';
$name = $test unless $test =~ /obj;?\d*$/i;
}
if (defined $type) {
$ctype = $type; $cand = $name;
- last if $ctype eq 'sh';
+ last if $ctype eq 'SHR';
}
}
if ($ctype) {
- eval '$' . $ctype . "{'$cand'}++";
- die "Error recording library: $@" if $@;
+ # This has to precede any other CRTLs, so just make it first
+ if ($cand eq 'VAXCCURSE') { unshift @{$found{$ctype}}, $cand; }
+ else { push @{$found{$ctype}}, $cand; }
warn "\tFound as $cand (really $test), type $ctype\n" if $verbose > 1;
next LIB;
}
."No library found for $lib\n";
}
- @libs = sort keys %obj;
- # This has to precede any other CRTLs, so just make it first
- if ($olb{VAXCCURSE}) {
- push(@libs,"$olb{VAXCCURSE}/Library");
- delete $olb{VAXCCURSE};
- }
- push(@libs, map { "$_/Library" } sort keys %olb);
- push(@libs, map { "$_/Share" } sort keys %sh);
- $lib = join(' ',@libs);
+ push @fndlibs, @{$found{OBJ}} if exists $found{OBJ};
+ push @fndlibs, map { "$_/Library" } @{$found{OLB}} if exists $found{OLB};
+ push @fndlibs, map { "$_/Share" } @{$found{SHR}} if exists $found{SHR};
+ $lib = join(' ',@fndlibs);
$ldlib = $crtlstr ? "$lib $crtlstr" : $lib;
warn "Result:\n\tEXTRALIBS: $lib\n\tLDLOADLIBS: $ldlib\n" if $verbose;
=head2 EXTRALIBS
List of libraries that need to be linked with when linking a perl
-binary which includes this extension Only those libraries that
+binary which includes this extension. Only those libraries that
actually exist are included. These are written to a file and used
when linking perl.
=head1 PORTABILITY
This module deals with a lot of system dependencies and has quite a
-few architecture specific B<if>s in the code.
+few architecture specific C<if>s in the code.
=head2 VMS implementation
=item *
Input library and path specifications are accepted with or without the
-C<-l> and C<-L> prefices used by Unix linkers. If neither prefix is
+C<-l> and C<-L> prefixes used by Unix linkers. If neither prefix is
present, a token is considered a directory to search if it is in fact
a directory, and a library to search for otherwise. Authors who wish
their extensions to be portable to Unix or OS/2 should use the Unix
Wherever possible, shareable images are preferred to object libraries,
and object libraries to plain object files. In accordance with VMS
naming conventions, ext() looks for files named I<lib>shr and I<lib>rtl;
-it also looks for I<lib>lib and libI<lib> to accomodate Unix conventions
+it also looks for I<lib>lib and libI<lib> to accommodate Unix conventions
used in some ported software.
=item *
If C<$potential_libs> is empty, the return value will be empty.
Otherwise, the libraries specified by C<$Config{libs}> (see Config.pm)
will be appended to the list of C<$potential_libs>. The libraries
-will be searched for in the directories specified in C<$potential_libs>
-as well as in C<$Config{libpth}>. For each library that is found, a
-space-separated list of fully qualified library pathnames is generated.
+will be searched for in the directories specified in C<$potential_libs>,
+C<$Config{libpth}>, and in C<$Config{installarchlib}/CORE>.
+For each library that is found, a space-separated list of fully qualified
+library pathnames is generated.
=item *
Input library and path specifications are accepted with or without the
-C<-l> and C<-L> prefices used by Unix linkers.
+C<-l> and C<-L> prefixes used by Unix linkers.
An entry of the form C<-La:\foo> specifies the C<a:\foo> directory to look
for the libraries that follow.
be appended to any entries that are not directories and don't already have
the suffix.
-Note that the C<-L> and <-l> prefixes are B<not required>, but authors
+Note that the C<-L> and C<-l> prefixes are B<not required>, but authors
who wish their extensions to be portable to Unix or OS/2 should use the
prefixes, since the Unix-OS/2 version of ext() requires them.
as reflected by C<$Config{cc}>), but the entries are not verified to be
valid files or directories.
+An entry that matches C</:search/i> reenables searching for
+the libraries specified after it. You can put it at the end to
+enable searching for default libraries specified by C<$Config{libs}>.
+
=item *
The libraries specified may be a mixture of static libraries and
import libraries (to link with DLLs). Since both kinds are used
-pretty transparently on the win32 platform, we do not attempt to
+pretty transparently on the Win32 platform, we do not attempt to
distinguish between them.
=item *
Since this module is most often used only indirectly from extension
C<Makefile.PL> files, here is an example C<Makefile.PL> entry to add
-a set of libraries to the build process for an extension:
+a library to the build process for an extension:
LIBS => ['-lgl']
When using a compiler other than GCC, the above entry will search for
C<gl.lib> (followed by C<libgl.lib>).
+If the library happens to be in a location not in C<$Config{libpth}>,
+you need:
+
+ LIBS => ['-Lc:\gllibs -lgl']
+
Here is a less often used example:
LIBS => ['-lgl', ':nosearch -Ld:\mesalibs -lmesa -luser32']
C<-libpath:d:\mesalibs mesa.lib user32.lib>.
When using the Borland compiler, the second item is returned as
-C<-Ld:\mesalibs mesa.lib user32.lib>.
+C<-Ld:\mesalibs mesa.lib user32.lib>, and MakeMaker takes care of
+moving the C<-Ld:\mesalibs> to the correct place in the linker
+command line.
=back
projects / p5sagit/p5-mst-13.2.git / blobdiff