Re: [gentoo-dev] escaping variables in sed expressions

[Petteri Räty]

Marijn Schouten (hkBst) kirjoitti:

Hi list,


wisdom for avoiding doing that in the future.

dev-scheme/slib-3.1.5-r1 currently does

sed "s_prefix = /usr/local/_prefix = ${D}/usr/_" -i Makefile

to make it not violate the sandbox. However a user had set

underscores and failing.[1]


from this problem (thanks to dleverton):

sed -ne '\_^prefix = /usr/local_!{p;d}' -e "iprefix = ${D}" -i Makefile

Comments?

Marijn

[1]: http://bugs.gentoo.org/show_bug.cgi?id=217735

it seems I have been using some fragile sed expression and I'd like to tap the collective PORTAGE_TMPDIR=/home/gentoo_overflow/tmp causing the sed expression to contain too may There are several option to handle this. I could use a less common delimiter or I could escape it: ${D//_/\_} instead of ${D}. I could use a sed expression that doesn't suffer

Regards,
Petteri

You should just fix the Makefile to respect DESTDIR and send the patch upstream.

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