[perl #75662] Panic error while using goto with "given when" statement

# New Ticket Created by  PRAKHER SINGHAL 
# Please include the string:  [perl #75662]
# in the subject line of all future correspondence about this issue. 
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=75662 >


This is a bug report for perl from [email protected],
generated with the help of perlbug 1.39 running under perl 5.10.1.


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

I got "Panic: goto" error while using goto inside "given when statement".
My code is here:


use feature "switch";
use ExtUtils::MakeMaker qw(prompt);

start: $input = prompt("Enter Input:");

given($input){

    when (/^cat/) { print "Cat"; }
    when (/^rat/) { print "Rat"; }
    default { goto start;}

    }






[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
    category=library
    severity=medium
    module=Switch
---
Site configuration information for perl 5.10.1:

Configured by SYSTEM at Tue Jan 26 23:14:33 2010.

Summary of my perl5 (revision 5 version 10 subversion 1) configuration:

  Platform:
    osname=MSWin32, osvers=5.00, archname=MSWin32-x86-multi-thread
    uname=''
    config_args='undef'
    hint=recommended, useposix=true, d_sigaction=undef
    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='C:/Perl/site/bin/gcc.exe', ccflags ='-DNDEBUG -DWIN32 -D_CONSOLE
-DNO_STRICT -DHAVE_DES_FCRYPT -DUSE_SITECUSTOMIZE -DPRIVLIB_LAST_IN_INC
-DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DUSE_PERLIO
-DPERL_MSVCRT_READFIX -DHASATTRIBUTE -fno-strict-aliasing -mms-bitfields',
    optimize='-O2',
    cppflags='-DWIN32'
    ccversion='', gccversion='3.4.5 (mingw-vista special r3)',
gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
    d_longlong=undef, longlongsize=8, d_longdbl=define, longdblsize=8
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='__int64',
lseeksize=8
    alignbytes=8, prototype=define
  Linker and Libraries:
    ld='C:\Perl\site\bin\g++.exe', ldflags ='-L"C:\Perl\lib\CORE"'
    libpth=\lib
    libs=-lkernel32 -luser32 -lgdi32 -lwinspool -lcomdlg32 -ladvapi32
-lshell32 -lole32 -loleaut32 -lnetapi32 -luuid -lws2_32 -lmpr -lwinmm
-lversion -lodbc32 -lodbccp32 -lcomctl32 -lmsvcrt
    perllibs=-lkernel32 -luser32 -lgdi32 -lwinspool -lcomdlg32 -ladvapi32
-lshell32 -lole32 -loleaut32 -lnetapi32 -luuid -lws2_32 -lmpr -lwinmm
-lversion -lodbc32 -lodbccp32 -lcomctl32 -lmsvcrt
    libc=msvcrt.lib, so=dll, useshrplib=true, libperl=perl510.lib
    gnulibc_version=''
  Dynamic Linking:
    dlsrc=dl_win32.xs, dlext=dll, d_dlsymun=undef, ccdlflags=' '
    cccdlflags=' ', lddlflags='-mdll -L"C:\Perl\lib\CORE"'

Locally applied patches:
    ACTIVEPERL_LOCAL_PATCHES_ENTRY
    0abd0d disable non-unicode case insensitive trie matching

---
@INC for perl 5.10.1:
    C:/Perl/site/lib
    C:/Perl/lib
    .

---
Environment for perl 5.10.1:
    HOME (unset)
    LANG (unset)
    LANGUAGE (unset)
    LD_LIBRARY_PATH (unset)
    LOGDIR (unset)

PATH=C:\Perl\site\bin;C:\Perl\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program
Files\Java\jdk1.6.0_14\bin;;C:\Program Files\QuickTime\QTSystem\
    PERL_BADLANG (unset)
    SHELL (unset)