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Hi list, |
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it seems I have been using some fragile sed expression and I'd like to tap the collective |
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wisdom for avoiding doing that in the future. |
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dev-scheme/slib-3.1.5-r1 currently does |
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sed "s_prefix = /usr/local/_prefix = ${D}/usr/_" -i Makefile |
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to make it not violate the sandbox. However a user had set |
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PORTAGE_TMPDIR=/home/gentoo_overflow/tmp causing the sed expression to contain too may |
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underscores and failing.[1] |
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There are several option to handle this. I could use a less common delimiter or I could |
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escape it: ${D//_/\_} instead of ${D}. I could use a sed expression that doesn't suffer |
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from this problem (thanks to dleverton): |
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sed -ne '\_^prefix = /usr/local_!{p;d}' -e "iprefix = ${D}" -i Makefile |
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Comments? |
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Marijn |
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[1]: http://bugs.gentoo.org/show_bug.cgi?id=217735 |
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- -- |
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Marijn Schouten (hkBst), Gentoo Lisp project, Gentoo ML |
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<http://www.gentoo.org/proj/en/lisp/>, #gentoo-{lisp,ml} on FreeNode |
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