In that case, Configure is failing to parse the output of the C preprocessor. Look at he following code, around line 5413: 
echo '#include <stdio.h>' > foo.c
$cat >fieldn <<EOF
$startsh
$cppstdin $cppflags $cppminus <foo.c 2>/dev/null | \
$grep '^[     ]*#.*stdio\.h' | \
while read cline; do
    pos=1
    set \$cline
    while $test \$# -gt 0; do
        if $test $testaccess \`echo \$1 | $tr -d '"'\`; then
            echo "\$pos"
            exit 0
        fi
        shift
        pos=\`expr \$pos + 1\`
    done
done
EOF

[download]
You might want to edit Configure so that it shows the exact command being executed on the $cppstdin line, then run it manually and what output you get.

Dave.

In reply to Re^3: Installing Perl 5.18.0 in Mac OS X with PerlBrew by dave_the_m
in thread Installing Perl 5.18.0 in Mac OS X with PerlBrew by coolmichael

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