scripts/wrapper.in
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Mon Feb 21 23:39:46 2011 +0100 (2011-02-21)
changeset 2312 8b9938edd3d8
parent 1434 7e7290acccc1
permissions -rw-r--r--
libc/glibc: add fortify option

By default, recent versions of glibc and eglibc will build some
functions that take format strings (eg. printf, syslog...) with
run-time checks against some format string attacks. This is
called a fortified build.

Unfortunately, this fails somehow while building the instrumented
version of syslog, with some kind of circular dependency...

Disable fortified builds by default, and hide the enabling option
behind EXPERIMENTAL for daring users...

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
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#!/bin/sh
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# this wrapper will not work under BSD systems or others
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# not containig the GNU readlink.
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# Under those, wrapper.c will forcibly be used
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# regardless of the config file setting.
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canonicalizedname=$(readlink -nm "${0}")
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dirname="$(dirname "${canonicalizedname}")"
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basename="$(basename "${canonicalizedname}")"
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ld_lib_path="$(dirname "${dirname}")/lib"
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case ":${LD_LIBRARY_PATH}:" in
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    *":${ld_lib_path}:"*)   ;;
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    *)  LD_LIBRARY_PATH="${ld_lib_path}${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}";;
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esac
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export LD_LIBRARY_PATH
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exec "${dirname}/.${basename}" "$@"