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# /bin/sh
#
# $NetBSD: shlib-type,v 1.2 2006/01/19 17:24:44 jlam Exp $
#
# This code is derived from software contributed to The NetBSD Foundation
# by Alistair Crooks.
#
# This script returns the the library format for the platform. If the
# library format is "ELF/a.out", then a small program is compiled to
# determine the correct object format (either ELF or a.out).
#
: ${CC=cc}
: ${ECHO=echo}
: ${FILE_CMD=file}
: ${RM=rm}
: ${MKDIR=mkdir}
: ${TEST=test}
: ${TMPDIR=/tmp}
self="${0##*/}"
usage() {
${ECHO} 1>&2 "usage: $self libformat"
}
${TEST} $# -gt 0 || { usage; exit 1; }
sotype=none
case "$1" in
ELF/a.out)
tmpdir="${TMPDIR}/shlib-type.$$"
umask 077 && ${MKDIR} "$tmpdir"
if ${TEST} -d "$tmpdir"; then
cd $tmpdir
${ECHO} "int main() { return(0); }" > a.c
${CC} ${CFLAGS} a.c -o a.out >/dev/null 2>&1
if ${TEST} -f "a.out"; then
case `${FILE_CMD} a.out` in
*ELF*dynamically*) sotype="ELF" ;;
*shared*library*) sotype="a.out" ;;
*dynamically*) sotype="a.out" ;;
esac
fi
${RM} -fr "$tmpdir"
fi
;;
*)
sotype="$1"
;;
esac
${ECHO} $sotype
exit 0
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