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Re: About make manual 11.3 archive(member) syntax a(m) in prerequisite
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From: |
lijh8 |
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Subject: |
Re: About make manual 11.3 archive(member) syntax a(m) in prerequisite |
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Date: |
Thu, 2 Jan 2025 00:01:32 +0800 |
Update.
When ARFLAGS is without U, the datetime of the object archive(member) is reset
to zero.
It renders the target being always outdated and rebuilds the target.
$ ar -tv libfoo.a
rw-r--r-- 0/0 78776 Jan 1 08:00 1970 foo.o
$
When the ARFLAGS is with U, the timestamp is kept in archive(member) in the
target.
$ ar -tv libfoo.a
rw-rw-r-- 1000/1000 78776 Jan 1 23:49 2025 foo.o
$
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