[perl #68198] Perl can't find its relocatable libraries when invoked non-absolute

# New Ticket Created by  Michael G Schwern 
# Please include the string:  [perl #68198]
# in the subject line of all future correspondence about this issue. 
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=68198 >


This is a bug report for perl from schwern@pobox.com,
generated with the help of perlbug 1.39 running under perl 5.11.0.


-----------------------------------------------------------------
[Please describe your issue here]

After installing with -Duserelocatableinc Perl can only find its
libraries if run with a full path.  For example,
/usr/local/perl/blead/bin/perl.  When run via a symlink or PATH it
cannot find its libraries, presumably because $^X is not absolute.

This limits the utility of -Duserelocatableinc.

$ /usr/local/perl/blead/bin/perl -V | head
Summary of my perl5 (revision 5 version 11 subversion 0) configuration:
  Commit id: d7eb1120ad049806b32041fcc301bf95f95423bc

$ ls -l `which bleadperl`
lrwxr-xr-x 1 root wheel 22 2008-12-14 18:33 /usr/local/bin/bleadperl ->
../perl/blead/bin/perl
$ bleadperl -V
Can't locate Config.pm in @INC (@INC contains:
/sw/lib/perl5/darwin-thread-multi-2level /sw/lib/perl5 /sw/lib/perl5/darwin
../lib/site_perl/5.11.0/darwin-thread-multi-2level ../lib/site_perl/5.11.0
../lib/5.11.0/darwin-thread-multi-2level ../lib/5.11.0 .).
BEGIN failed--compilation aborted.

$ PATH=/usr/local/perl/blead/bin perl -V
Can't locate Config.pm in @INC (@INC contains:
/sw/lib/perl5/darwin-thread-multi-2level /sw/lib/perl5 /sw/lib/perl5/darwin
../lib/site_perl/5.11.0/darwin-thread-multi-2level ../lib/site_perl/5.11.0
../lib/5.11.0/darwin-thread-multi-2level ../lib/5.11.0 .).
BEGIN failed--compilation aborted.


[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
    category=core
    severity=low
---
Site configuration information for perl 5.11.0:

Configured by schwern at Wed Aug  5 00:07:04 PDT 2009.

Summary of my perl5 (revision 5 version 11 subversion 0) configuration:
  Commit id: d7eb1120ad049806b32041fcc301bf95f95423bc
  Platform:
    osname=darwin, osvers=9.7.0, archname=darwin-thread-multi-2level
    uname='darwin windhund 9.7.0 darwin kernel version 9.7.0: tue mar 31
22:52:17 pdt 2009; root:xnu-1228.12.14~1release_i386 i386 i386 macbook1,1 darwin '
    config_args='-Ode -DEBUGGING=both -Dprefix=/usr/local/perl/blead
-Dusedevel -Duseithreads -Dccflags=-I/usr/local/include -I/opt/local/include
-I/sw/include -Dldflags=-L/usr/local/lib -L/opt/local/lib -L/sw/lib
-Dperladmin=schwern@pobox.com -Dcf_email=schwern@pobox.com
-Dmyhostname=windhund -Dmydomain=.schwern.org -Dlibpth=/usr/local/lib
/opt/local/lib /sw/lib /usr/lib -Uversiononly -Uinstallusrbinperl
-Duserelocatableinc'
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=define, usemultiplicity=define
    useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
    use64bitint=undef, use64bitall=undef, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cc', ccflags ='-I/usr/local/include -I/opt/local/include -I/sw/include
-DDEBUGGING -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include
-I/opt/local/include',
    optimize='-O3 -g',
    cppflags='-no-cpp-precomp -I/usr/local/include -I/opt/local/include
-I/sw/include -DDEBUGGING -fno-strict-aliasing -pipe -fstack-protector
-I/usr/local/include -I/opt/local/include'
    ccversion='', gccversion='4.0.1 (Apple Inc. build 5490)', gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
    alignbytes=8, prototype=define
  Linker and Libraries:
    ld='env MACOSX_DEPLOYMENT_TARGET=10.3 cc', ldflags ='-L/usr/local/lib
-L/opt/local/lib -L/sw/lib -fstack-protector'
    libpth=/usr/local/lib /opt/local/lib /sw/lib /usr/lib
    libs=-lgdbm -ldbm -ldb -ldl -lm -lutil -lc
    perllibs=-ldl -lm -lutil -lc
    libc=/usr/lib/libc.dylib, so=dylib, useshrplib=false, libperl=libperl.a
    gnulibc_version=''
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=bundle, d_dlsymun=undef, ccdlflags=' '
    cccdlflags=' ', lddlflags='-L/usr/local/lib -L/opt/local/lib -L/sw/lib
-bundle -undefined dynamic_lookup -fstack-protector'

Locally applied patches:
    PERL_GIT_UNPUSHED_COMMITS    	/* do not remove this line */
    PERL_GIT_UNCOMMITTED_CHANGES	/* do not remove this line */

---
@INC for perl 5.11.0:
    /sw/lib/perl5/darwin-thread-multi-2level
    /sw/lib/perl5
    /sw/lib/perl5/darwin
    /usr/local/perl/blead/lib/site_perl/5.11.0/darwin-thread-multi-2level
    /usr/local/perl/blead/lib/site_perl/5.11.0
    /usr/local/perl/blead/lib/5.11.0/darwin-thread-multi-2level
    /usr/local/perl/blead/lib/5.11.0
    .

---
Environment for perl 5.11.0:
    DYLD_LIBRARY_PATH (unset)
    HOME=/Users/schwern
    LANG=en_US.UTF-8
    LANGUAGE (unset)
    LC_CTYPE=en_US.UTF-8
    LD_LIBRARY_PATH (unset)
    LOGDIR (unset)

PATH=/Users/schwern/bin:/usr/local/bin:/opt/local/bin:/opt/local/sbin:/sw/bin:/sw/sbin:/Users/schwern/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/usr/X11R6/bin
    PERL5LIB=/sw/lib/perl5:/sw/lib/perl5/darwin
    PERL_AUTOINSTALL=--defaultdeps
    PERL_BADLANG (unset)
    SHELL=/opt/local/bin/bash

• [perl #68198] Perl can't find its relocatable libraries when invoked non-absolute by Michael G Schwern
• Re: [perl #68198] Perl can't find its relocatable libraries wheninvoked non-absolute by Nicholas Clark