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README: add multi-lib instructions

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Simon Ruderich
2014-05-17 21:52:53 +02:00
parent bcac94e353
commit c1c5dcf0ca
1 changed files with 21 additions and 0 deletions
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README
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@@ -88,6 +88,27 @@ A default setup could look like this:
COLORED_STDERR_FDS=2,
export LD_PRELOAD COLORED_STDERR_FDS
To use coloredstderr with multi-lib (multiple architectures on the same
system, e.g. i386 and amd64), your system must support the '$LIB' variable in
'LD_PRELOAD'. Then you can build coloredstderr for all architectures and use
'$LIB' in 'LD_PRELOAD'. The following should work for Debian-based systems
with this directory structure:
dir
`-- lib
|-- i386-linux-gnu
| `-- libcoloredstderr.so
`-- x86_64-linux-gnu
`-- libcoloredstderr.so
Now set 'LD_PRELOAD'. `lib/` is included in '$LIB'!
LD_PRELOAD='/absolute/path/to/dir/$LIB/libcoloredstderr.so'
The single quotes are important. '$LIB' is not evaluated by the shell, but by
the loader (`man ld.so`). Now both i386 and amd64 binaries automatically use
coloredstderr.
The following additional environment variables are available: