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[perl #77546] Build warnings in 5.12.x

From:
Jerry D. Hedden
Date:
August 31, 2010 03:19
Subject:
[perl #77546] Build warnings in 5.12.x
Message ID:
rt-3.6.HEAD-5116-1283226750-1439.77546-75-0@perl.org
# New Ticket Created by  "Jerry D. Hedden" 
# Please include the string:  [perl #77546]
# in the subject line of all future correspondence about this issue. 
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=77546 >


This is a bug report for perl from jdhedden[at]cpan[dot]org,
generated with the help of perlbug 1.39 running under perl 5.12.2.


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

Commit 1034633874902704c77f920090df30c42cfc8216 introduced the following
build wanings:

pp_pack.c: In function `S_unpack_rec':
pp_pack.c:1228: warning: 'sv' might be used uninitialized in this function
pp_pack.c:1561: warning: 'str' might be used uninitialized in this function

Commit 3297d27d658a6691c429e496bd2a05fe04eda9d7 fixes these build warnings
and should therefore be cherry-picked to got to maint-5.12, too.

[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
    category=core
    severity=low
---
Site configuration information for perl 5.12.2:

Configured by Jerry at Mon Aug 30 21:58:59 EDT 2010.

Summary of my perl5 (revision 5 version 12 subversion 2 patch 42438)
configuration:
  Snapshot of: 9afa8c45e4e3064c0074f9d451805fb286e86176
  Platform:
    osname=cygwin, osvers=1.5.25(0.15642), archname=cygwin-thread-multi-64int
    uname='cygwin_nt-5.1 seymour 1.5.25(0.15642) 2008-06-12 19:34 i686 cygwin '
    config_args='-de -Duse64bitint -Dusethreads
-Dinc_version_list=none -Dnoextensions=IPC/SysV Sys/Syslog Devel/DProf
Devel/Peek re GDBM_File NDBM_File ODBM_File Text/Soundex
Math/BigInt/FastCalc Time/Piece -A append:ccflags= -DNO_MATHOMS  -A
define:optimize=-Os -pipe -funit-at-a-time -march=pentium4
-mfpmath=sse -mieee-fp -mmmx -msse -msse2'
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=define, usemultiplicity=define
    useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
    use64bitint=define, use64bitall=undef, uselongdouble=undef
    usemymalloc=y, bincompat5005=undef
  Compiler:
    cc='gcc', ccflags ='-DPERL_USE_SAFE_PUTENV -U__STRICT_ANSI__
-DNO_MATHOMS -fno-strict-aliasing -pipe',
    optimize='-Os -pipe -funit-at-a-time -march=pentium4 -mfpmath=sse
-mieee-fp -mmmx -msse -msse2',
    cppflags='-DPERL_USE_SAFE_PUTENV -U__STRICT_ANSI__ -DNO_MATHOMS
-fno-strict-aliasing -pipe'
    ccversion='', gccversion='3.4.4 (cygming special, gdc 0.12, using
dmd 0.125)', gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=12345678
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
    ivtype='long long', ivsize=8, nvtype='double', nvsize=8,
Off_t='off_t', lseeksize=8
    alignbytes=8, prototype=define
  Linker and Libraries:
    ld='g++', ldflags =' -Wl,--enable-auto-import
-Wl,--export-all-symbols -Wl,--stack,8388608
-Wl,--enable-auto-image-base -s'
    libpth=/usr/lib /lib
    libs=-lgdbm -ldl -lcrypt -lgdbm_compat
    perllibs=-ldl -lcrypt
    libc=/usr/lib/libc.a, so=dll, useshrplib=true, libperl=cygperl5_12_2.dll
    gnulibc_version=''
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=dll, d_dlsymun=undef, ccdlflags=' -s'
    cccdlflags=' ', lddlflags=' --shared  -Wl,--enable-auto-import
-Wl,--export-all-symbols -Wl,--stack,8388608
-Wl,--enable-auto-image-base -s'

Locally applied patches:
    RC1

---
@INC for perl 5.12.2:
    /usr/lib/perl5/site_perl/5.12.2/cygwin
    /usr/lib/perl5/site_perl/5.12.2
    /usr/lib/perl5/5.12.2/cygwin
    /usr/lib/perl5/5.12.2
    .

---
Environment for perl 5.12.2:
    CYGWIN=ntsec
    HOME=/home/Jerry
    LANG=C
    LANGUAGE=C
    LC_ALL=C
    LD_LIBRARY_PATH (unset)
    LOGDIR (unset)
    PATH=/home/Jerry/bin:/usr/local/src/perl/bin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/c/Dev-Cpp/bin/:/c/WINDOWS/system32:/c/WINDOWS:/c/WINDOWS/System32/Wbem:/c/Program
Files/ATI Technologies/ATI Control
Panel:/c/PROGRA~1/COMMON~1/SONICS~1:/c/Program
Files/QuickTime/QTSystem/:/c/Program Files/ATI
Technologies/ATI.ACE/Core-Static:/c/WINDOWS/system32/WindowsPowerShell/v1.0:/c/WINDOWS/system32/WindowsPowerShell/v1.0:.
    PERLIO=perlio
    PERL_BADLANG (unset)
    SHELL (unset)




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