snemmal has asked for the wisdom of the Perl Monks concerning the following question:

Hi Team, My Unix AIX (7.1) box has already installed perl with 5.10 version. I had installed my own perl with latest version (5.22.0). i am trying to install a perl module (Digest-SHA-5.95) to my own perl. I had download the module from net and unzip, untar and then using the commands 1. perl Makefile.PL -- success 2. make -- this command is failing with below error. 
"Skip blib/lib/Digest/SHA.pm (unchanged)
Running Mkbootstrap for Digest::SHA ()
        chmod 644 "SHA.bs"
        cc -q32 -c  -I.  -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURC
+E -qmaxmem=-1 -qnoansialias -qlanglvl=extc99 -DUSE_NATIVE_DLOPEN -q32
+ -D_LARGE_FILES -O    -DVERSION=\"5.95\"  -DXS_VERSION=\"5.95\"  "-I/
+home/snemmal/perl/lib/5.22.0/aix/CORE"   SHA.c
        rm -f blib/arch/auto/Digest/SHA/SHA.so
        ld  -bhalt:4 -G -bI:/home/snemmal/perl/lib/5.22.0/aix/CORE/per
+l.exp -bE:SHA.exp -bnoentry -lc -lm  SHA.o  -o blib/arch/auto/Digest/
+SHA/SHA.so
ld: 0711-738 ERROR: Input file SHA.o:
        XCOFF32 object files are not allowed in 64-bit mode.
make: 1254-004 The error code from the last command is 8."

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Please help me resolve this compatibility issue FYI- $perl -V:ptrsize ptrsize='4';

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Re: XCOFF32 object files are not allowed in 64-bit mode
by syphilis (Archbishop) on Feb 02, 2016 at 13:27 UTC
    Please help me resolve this compatibility issue FYI- $perl -V:ptrsize ptrsize='4';

    Did you specifically want a 32-bit perl ?
    If not, I would try building a 64-bit perl - just give configure the -Dcc="gcc -m64" arg (or whatever is equivalent for your particular case - maybe -Dcc="cc -q64" by the looks of it).

    I kept on striking problems with my 32-bit builds of perl on Debian (though they *do* build Digest-SHA-5.95 ok). In the end I just settled for 64-bit builds of perl, which was my preferred option anyway.

    Cheers,
    Rob
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      Thanks much for looking at this.. is there any alternative which dont make me remove perl 32 and install perl 64 and solve this situation... Also, if i had to move to perl 64., how can i get all my installed modules in 32-bit env.. again i need to install them?
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        According to this random manpage for ld, maybe you can/have to add -b32 to the LD= line in Makefile to make ld work in 32-bit mode.

        If that works, you can either explicitly reconfigure and recompile your perl (and all modules) to have the -b32 parameter in the LD invocation or you can try patching lib/Config_heavy.pl and add the -b32 there and pray that everything still works.

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