I'm trying to install Padre on my up-to-date Arch Linux 64-bit computer. I ran sudo cpanm Padre and got the following error.

Building and testing PPI-1.220 ... *** Error in `/usr/bin/perl': reall
+oc(): invalid pointer: 0x0000000001dce00c ***
======= Backtrace: =========
/usr/lib/libc.so.6(+0x7198e)[0x7ff6605ca98e]
/usr/lib/libc.so.6(+0x76dee)[0x7ff6605cfdee]
/usr/lib/libc.so.6(realloc+0x1e8)[0x7ff6605d4108]
/usr/lib/perl5/core_perl/CORE/libperl.so(Perl_safesysrealloc+0x10)[0x7
+ff6609a2820]
/usr/lib/perl5/core_perl/CORE/libperl.so(Perl_markstack_grow+0x5d)[0x7
+ff6609f511d]
/usr/lib/perl5/core_perl/CORE/libperl.so(Perl_pp_pushmark+0x35)[0x7ff6
+609c0c85]
/usr/lib/perl5/core_perl/CORE/libperl.so(Perl_runops_standard+0x16)[0x
+7ff6609c03c6]
/usr/lib/perl5/core_perl/CORE/libperl.so(perl_run+0x21d)[0x7ff66095108
+d]
/usr/bin/perl(main+0x149)[0x400e39]
/usr/lib/libc.so.6(__libc_start_main+0xf0)[0x7ff660579800]
/usr/bin/perl(_start+0x29)[0x400e79]
======= Memory map: ========
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In fact the same thing is happening when I try to install other things such as Moose.

It seems like a conflict between library versions or something like that, but I don't know where to start looking.

One thing I should confess is that I've got a mixture of Perl modules, some installed via Arch's 'pacman' and some via 'cpanm'. perl -V says:

Summary of my perl5 (revision 5 version 20 subversion 2) configuration
+:
   
  Platform:
    osname=linux, osvers=3.19.0-1-arch, archname=x86_64-linux-thread-m
+ulti
    uname='linux flo-64 3.19.0-1-arch #1 smp preempt mon feb 9 07:08:2
+0 cet 2015 x86_64 gnulinux '
    config_args='-des -Dusethreads -Duseshrplib -Doptimize=-march=x86-
+64 -mtune=generic -O2 -pipe -fstack-protector-strong --param=ssp-buff
+er-size=4 -Dprefix=/usr -Dvendorprefix=/usr -Dprivlib=/usr/share/perl
+5/core_perl -Darchlib=/usr/lib/perl5/core_perl -Dsitelib=/usr/share/p
+erl5/site_perl -Dsitearch=/usr/lib/perl5/site_perl -Dvendorlib=/usr/s
+hare/perl5/vendor_perl -Dvendorarch=/usr/lib/perl5/vendor_perl -Dscri
+ptdir=/usr/bin/core_perl -Dsitescript=/usr/bin/site_perl -Dvendorscri
+pt=/usr/bin/vendor_perl -Dinc_version_list=none -Dman1ext=1perl -Dman
+3ext=3perl -Dcccdlflags='-fPIC' -Dlddlflags=-shared -Wl,-O1,--sort-co
+mmon,--as-needed,-z,relro -Dldflags=-Wl,-O1,--sort-common,--as-needed
+,-z,relro'
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=define, usemultiplicity=define
    use64bitint=define, use64bitall=define, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -fwrapv -fno-strict-
+aliasing -pipe -fstack-protector -I/usr/local/include -D_LARGEFILE_SO
+URCE -D_FILE_OFFSET_BITS=64',
    optimize='-march=x86-64 -mtune=generic -O2 -pipe -fstack-protector
+-strong --param=ssp-buffer-size=4',
    cppflags='-D_REENTRANT -D_GNU_SOURCE -fwrapv -fno-strict-aliasing 
+-pipe -fstack-protector -I/usr/local/include'
    ccversion='', gccversion='4.9.2 20150204 (prerelease)', gccosandve
+rs=''
    intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=1
+6
    ivtype='long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t',
+ lseeksize=8
    alignbytes=8, prototype=define
  Linker and Libraries:
    ld='cc', ldflags ='-Wl,-O1,--sort-common,--as-needed,-z,relro -fst
+ack-protector -L/usr/local/lib'
    libpth=/usr/local/lib /usr/lib/gcc/x86_64-unknown-linux-gnu/4.9.2/
+include-fixed /usr/lib /lib/../lib /usr/lib/../lib /lib /lib64 /usr/l
+ib64
    libs=-lnsl -lgdbm -ldb -ldl -lm -lcrypt -lutil -lpthread -lc -lgdb
+m_compat
    perllibs=-lnsl -ldl -lm -lcrypt -lutil -lpthread -lc
    libc=libc-2.21.so, so=so, useshrplib=true, libperl=libperl.so
    gnulibc_version='2.21'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E -
+Wl,-rpath,/usr/lib/perl5/core_perl/CORE'
    cccdlflags='-fPIC', lddlflags='-shared -Wl,-O1,--sort-common,--as-
+needed,-z,relro -L/usr/local/lib -fstack-protector'


Characteristics of this binary (from libperl): 
  Compile-time options: HAS_TIMES MULTIPLICITY PERLIO_LAYERS
                        PERL_DONT_CREATE_GVSV
                        PERL_HASH_FUNC_ONE_AT_A_TIME_HARD
                        PERL_IMPLICIT_CONTEXT PERL_MALLOC_WRAP
                        PERL_NEW_COPY_ON_WRITE PERL_PRESERVE_IVUV
                        USE_64_BIT_ALL USE_64_BIT_INT USE_ITHREADS
                        USE_LARGE_FILES USE_LOCALE USE_LOCALE_COLLATE
                        USE_LOCALE_CTYPE USE_LOCALE_NUMERIC USE_PERLIO
                        USE_PERL_ATOF USE_REENTRANT_API
  Built under linux
  Compiled at Feb 16 2015 15:25:32
  @INC:
    /usr/lib/perl5/site_perl
    /usr/share/perl5/site_perl
    /usr/lib/perl5/vendor_perl
    /usr/share/perl5/vendor_perl
    /usr/lib/perl5/core_perl
    /usr/share/perl5/core_perl
    .
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Any ideas as to what I should check or update next?