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#!/bin/sh
# file : bootstrap.sh
# copyright : Copyright (c) 2014-2019 Code Synthesis Ltd
# license : MIT; see accompanying LICENSE file
usage="Usage: $0 [-h] [--libbutl <dir>] [--host <triplet>] <cxx> [<cxx-option>...]"
diag ()
{
echo "$*" 1>&2
}
cxx=
libbutl=
host=
while test $# -ne 0; do
case "$1" in
-h|--help)
diag
diag "$usage"
diag
diag "The script expects to find the libbutl/ or libbutl-*/ directory either"
diag "in the current directory (build2 root) or one level up. The result is"
diag "saved as build2/b-boot."
diag
diag "Example usage:"
diag
diag "$0 g++"
diag
diag "See the INSTALL file for details."
diag
exit 0
;;
--libbutl)
shift
if test $# -eq 0; then
diag "error: libbutl path expected after --libbutl"
diag "$usage"
exit 1
fi
if test ! -d "$1"; then
diag "error: libbutl directory '$1' does not exist"
exit 1
fi
libbutl="${1%/}"
shift
;;
--host)
shift
if test $# -eq 0; then
diag "error: host triplet expected after --host"
diag "$usage"
exit 1
fi
host="$1"
shift
;;
*)
cxx="$1"
shift
break
;;
esac
done
if test -z "$cxx"; then
diag "error: compiler executable expected"
diag "$usage"
exit 1
fi
if test -z "$host"; then
if ! host="$(./config.guess)"; then
diag "error: unable to guess host triplet"
exit 1
fi
else
if ! chost="$(./config.sub "$host")"; then
diag "error: unable to canonicalize host triplet '$host'"
exit 1
fi
host="$chost"
fi
# See if there is libbutl or libbutl-* in the current directory and
# one directory up.
#
if test -z "$libbutl"; then
if test -d libbutl; then
libbutl="libbutl"
else
libbutl="$(echo libbutl-*/)"
libbutl="${libbutl%/}"
if test ! -d "$libbutl"; then
libbutl=
fi
fi
fi
if test -z "$libbutl"; then
if test -d ../libbutl; then
libbutl="../libbutl"
else
libbutl="$(echo ../libbutl-*/)"
libbutl="${libbutl%/}"
if test ! -d "$libbutl"; then
libbutl=
fi
fi
fi
if test -z "$libbutl"; then
diag "error: unable to find libbutl, use --libbutl to specify its location"
exit 1
fi
src="build2/*.cxx"
src="$src build2/c/*.cxx"
src="$src build2/cxx/*.cxx"
src="$src libbuild2/*.cxx"
src="$src libbuild2/config/*.cxx"
src="$src libbuild2/dist/*.cxx"
src="$src libbuild2/test/*.cxx"
src="$src libbuild2/test/script/*.cxx"
src="$src libbuild2/install/*.cxx"
src="$src libbuild2/bin/*.cxx"
src="$src libbuild2/cc/*.cxx"
src="$src libbuild2/version/*.cxx"
src="$src libbuild2/in/*.cxx"
src="$src $libbutl/libbutl/*.cxx"
# Filter out *.test.cxx sources.
#
r=
for f in $src; do
if test -n "${f##*.test.cxx}"; then
r="$r $f"
fi
done
# Note that for as long as we support GCC 4.9 we have to compile in the C++14
# mode since 4.9 doesn't recognize c++1z.
#
set -x
"$cxx" "-I$libbutl" -I. -DBUILD2_BOOTSTRAP '-DBUILD2_HOST_TRIPLET="'"$host"'"' -std=c++1y "$@" -o build2/b-boot $r -lpthread
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