Perl output dropped when invoking itself
Michael Adler
mad2@tapil.com
Tue Nov 28 22:24:00 GMT 2006
Yitzchak Scott-Thoennes wrote:
> On Tue, Nov 14, 2006 at 12:09:49PM -0500, Michael Adler wrote:
>
>> I'm having Perl I/O problems on one machine that keep me from getting
>> CPAN installations to work. On this machine if I execte:
>>
>> perl -e 'print `perl -e "require 5; print qq{VER_OK\n}"`;'
>>
>> from bash there is no output. On all my other machines it prints
>> VER_OK. ExtUtils::MM_Unix does this test and fails.
>>
>> I've looked at all environment variables I can think of, especially
>> CYGWIN, and it is identical on a machine that works and one that fails.
>> Cygwin is up to date on both and Perl version is 5.8.7. I've tried
>> multiple values of the PERLIO variable with no success. Replacing the
>> inner invocation of perl with some other command, like cat of a file,
>> works on both machines! I tried blowing away the entire perl
>> environment and reinstalling.
>>
>> I assume I'm missing something simple. Hints would be appreciated.
>>
>
> What do these do:
> perl -e 'print `perl -v`'
> perl -e 'print `perl -f -e "require 5; print qq{VER_OK\n}"`;'
> perl -e 'print `perl -f -e "print qq{VER_OK\n}"`;'
>
Thank you for the reply. I did finally figure it out. Some
post-install script had apparently failed in the past and /bin/sh was
old -- it wasn't bash.
-Michael
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