[perl #113422] make require stop at the first found/failed file

# New Ticket Created by  Ricardo SIGNES 
# Please include the string:  [perl #113422]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org:443/rt3/Ticket/Display.html?id=113422 >


This is a bug report for perl from rjbs@cpan.org,
generated with the help of perlbug 1.39 running under perl 5.16.0.


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


If @INC contains ./a and ./b, and ./a/Foo.pm exists but is unreadable, the
attempt to "require Foo" should fail, regardless of the contents of b.

(Further, the error should probably be "./a/Foo.pm cannot be read: $!", but
this may cause breakage on things that are overly-reliant on the error message
from require.)

For further reference, see [perl #112946]


[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
    category=core
    severity=wishlist
---
Site configuration information for perl 5.16.0:

Configured by rjbs at Sun May 20 14:03:44 EDT 2012.

Summary of my perl5 (revision 5 version 16 subversion 0) configuration:
   
  Platform:
    osname=darwin, osvers=11.4.0, archname=darwin-2level
    uname='darwin walrus.local 11.4.0 darwin kernel version 11.4.0: mon apr 9 19:32:15 pdt 2012; root:xnu-1699.26.8~1release_x86_64 x86_64 '
    config_args='-de -Dprefix=/Users/rjbs/perl5/perlbrew/perls/16.0'
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=undef, usemultiplicity=undef
    useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
    use64bitint=define, use64bitall=define, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cc', ccflags ='-fno-common -DPERL_DARWIN -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include -I/opt/local/include',
    optimize='-O3',
    cppflags='-fno-common -DPERL_DARWIN -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include -I/opt/local/include'
    ccversion='', gccversion='4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.1.00)', gccosandvers=''
    intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
    ivtype='long', ivsize=8, 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 =' -fstack-protector -L/usr/local/lib -L/opt/local/lib'
    libpth=/usr/local/lib /opt/local/lib /usr/lib
    libs=-lgdbm -ldbm -ldl -lm -lutil -lc
    perllibs=-ldl -lm -lutil -lc
    libc=, so=dylib, useshrplib=false, libperl=libperl.a
    gnulibc_version=''
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=bundle, d_dlsymun=undef, ccdlflags=' '
    cccdlflags=' ', lddlflags=' -bundle -undefined dynamic_lookup -L/usr/local/lib -L/opt/local/lib -fstack-protector'

Locally applied patches:
    

---
@INC for perl 5.16.0:
    /Users/rjbs/.perlbrew/libs/16.0@std/lib/perl5/darwin-2level
    /Users/rjbs/.perlbrew/libs/16.0@std/lib/perl5/darwin-2level
    /Users/rjbs/.perlbrew/libs/16.0@std/lib/perl5
    /Users/rjbs/perl5/perlbrew/perls/16.0/lib/site_perl/5.16.0/darwin-2level
    /Users/rjbs/perl5/perlbrew/perls/16.0/lib/site_perl/5.16.0
    /Users/rjbs/perl5/perlbrew/perls/16.0/lib/5.16.0/darwin-2level
    /Users/rjbs/perl5/perlbrew/perls/16.0/lib/5.16.0
    .

---
Environment for perl 5.16.0:
    DYLD_LIBRARY_PATH (unset)
    HOME=/Users/rjbs
    LANG=en_US.UTF-8
    LANGUAGE (unset)
    LD_LIBRARY_PATH (unset)
    LOGDIR (unset)
    PATH=/Users/rjbs/.perlbrew/libs/16.0@std/bin:/Users/rjbs/perl5/perlbrew/bin:/Users/rjbs/perl5/perlbrew/perls/16.0/bin:/Users/rjbs/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/local/bin:/Users/rjbs/code/hla:/Users/rjbs/code/hla:/Users/rjbs/code/hla
    PERL5LIB=/Users/rjbs/.perlbrew/libs/16.0@std/lib/perl5/darwin-2level:/Users/rjbs/.perlbrew/libs/16.0@std/lib/perl5
    PERLBREW_BASHRC_VERSION=0.42
    PERLBREW_HOME=/Users/rjbs/.perlbrew
    PERLBREW_LIB=std
    PERLBREW_MANPATH=/Users/rjbs/.perlbrew/libs/16.0@std/man:/Users/rjbs/perl5/perlbrew/perls/16.0/man
    PERLBREW_PATH=/Users/rjbs/.perlbrew/libs/16.0@std/bin:/Users/rjbs/perl5/perlbrew/bin:/Users/rjbs/perl5/perlbrew/perls/16.0/bin
    PERLBREW_PERL=16.0
    PERLBREW_ROOT=/Users/rjbs/perl5/perlbrew
    PERLBREW_VERSION=0.42
    PERLDOC=-n/opt/local/bin/groff
    PERL_AUTOINSTALL=--skipdeps
    PERL_BADLANG (unset)
    PERL_LOCAL_LIB_ROOT=/Users/rjbs/.perlbrew/libs/16.0@std
    PERL_MB_OPT=--install_base /Users/rjbs/.perlbrew/libs/16.0@std
    PERL_MM_OPT=INSTALL_BASE=/Users/rjbs/.perlbrew/libs/16.0@std
    SHELL=/opt/local/bin/zsh

• [perl #113422] make require stop at the first found/failed file by Ricardo SIGNES
• Re: [perl #113422] make require stop at the first found/failed file by Brian Fraser
• Re: [perl #113422] make require stop at the first found/failed file by Ricardo Signes