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#!/bin/sh
# Exit with status 0 if a supported version of libpthread is found (NPTL or
# non-Linux libpthread) and exit with status 1 if a non-supported version of
# libpthread is found (LinuxThreads).
if [ "$(uname)" = "Linux" ]; then
if [ ! -x /usr/bin/getconf ]; then
echo "Error: could not find the program /usr/bin/getconf."
echo "Please install the glibc-common package."
# Assume NPTL.
exit 0
fi
libpthread_version="$(/usr/bin/getconf GNU_LIBPTHREAD_VERSION 2>/dev/null)"
if [ "${libpthread_version#NPTL}" != "${libpthread_version}" ]; then
# NPTL
exit 0
fi
if [ -x /lib/ld-musl-*.so.1 ] ; then
# musl
exit 0
fi
# configuration string is empty or does start with "linuxthreads".
exit 1
fi
# Another OS than Linux, which is also fine.
exit 0
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