First hit from a web search for the product name and the error returns this, which looks like a good staring point. Perhaps some of the build scripts for openwrt need to be updated?. For the example above try:

$text =~ s/\$\{([^ \t=:+{}]+)}/substitute_ac_subst_variables_worker($1
+)/ge;

[download]

perldelta says:

"You have to now say something like "\{" or "{" to specify to match a LEFT CURLY BRACKET; otherwise, it is a fatal pattern compilation error. This change will allow future extensions to the language.

These have been deprecated since v5.16, with a deprecation message raised for some uses starting in v5.22. Unfortunately, the code added to raise the message was buggy and failed to warn in some cases where it should have. Therefore, enforcement of this ban for these cases is deferred until Perl 5.30, but the code has been fixed to raise a default-on deprecation message for them in the meantime.

Some uses of literal "{" occur in contexts where we do not foresee the meaning ever being anything but the literal, such as the very first character in the pattern, or after a "|" meaning alternation. Thusn"

Regarding perlbrew issues, more details are required.

In reply to Re: compilation problems by marto
in thread compilation problems by morgon

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