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| From: | Mike Frysinger <vapier@g.o> | ||
|---|---|---|---|
| To: | "Michał Górny" <mgorny@g.o> | ||
| Cc: | gentoo-dev@l.g.o, hasufell@g.o, amd64@g.o, toolchain@g.o | ||
| Subject: | [gentoo-dev] Re: [PATCH multilib.eclass] Distinguish between unset and empty variables when restoring. | ||
| Date: | Sat, 20 Apr 2013 06:08:07 | ||
| Message-Id: | 201304200210.22979.vapier@gentoo.org | ||
| In Reply to: | [gentoo-dev] [PATCH multilib.eclass] Distinguish between unset and empty variables when restoring. by "Michał Górny" |
||
| 1 | On Saturday 20 April 2013 01:12:20 Michał Górny wrote: |
| 2 | > for v in CHOST CBUILD AS CC CXX LD PKG_CONFIG_{LIBDIR,PATH} ; do |
| 3 | > vv="__abi_saved_${v}" |
| 4 | > - export ${v}="${!vv}" |
| 5 | > + unset ${v} |
| 6 | > + [[ ${!vv+1} ]] && export ${v}="${!vv}" |
| 7 | > unset ${vv} |
| 8 | |
| 9 | merge the two unset commands. no need to run it twice. |
| 10 | -mike |
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| Subject | Author |
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| Re: [gentoo-dev] Re: [PATCH multilib.eclass] Distinguish between unset and empty variables when restoring. | "Michał Górny" <mgorny@g.o> |