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-rwxr-xr-xbootstrap.sh86
1 files changed, 48 insertions, 38 deletions
diff --git a/bootstrap.sh b/bootstrap.sh
index 28da7f5..9493bea 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -4,74 +4,84 @@
# copyright : Copyright (c) 2014-2016 Code Synthesis Ltd
# license : MIT; see accompanying LICENSE file
-usage="Usage: $0 [-h] [--cxx <file>] [--libbutl <dir>] [--host <triplet>] [<options>]"
+usage="Usage: $0 [-h] [--libbutl <dir>] [--host <triplet>] <cxx> [<cxx-option>...]"
-cxx=g++
+diag ()
+{
+ echo "$*" 1>&2
+}
+
+cxx=
libbutl=
host=
while test $# -ne 0; do
- case $1 in
+ case "$1" in
-h|--help)
- echo "$usage" 1>&2
- echo 1>&2
- echo "The script expects to find the libbutl/ or libbutl-*/ directory either" 1>&2
- echo "in the current directory (build2 root) or one level up." 1>&2
- echo 1>&2
- echo "See the INSTALL file for details." 1>&2
+ 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
;;
- --cxx)
- shift
- if test $# -eq 0; then
- echo "error: c++ compiler executable expected after --cxx" 1>&2
- echo "$usage" 1>&2
- exit 1
- fi
- cxx=$1
- shift
- ;;
--libbutl)
shift
if test $# -eq 0; then
- echo "error: libbutl path expected after --libbutl" 1>&2
- echo "$usage" 1>&2
+ diag "error: libbutl path expected after --libbutl"
+ diag "$usage"
exit 1
fi
if test ! -d "$1"; then
- echo "error: libbutl directory '$1' does not exist" 1>&2
+ diag "error: libbutl directory '$1' does not exist"
exit 1
fi
- libbutl=$1
+ libbutl="$1"
shift
;;
--host)
shift
if test $# -eq 0; then
- echo "error: host triplet expected after --host" 1>&2
- echo "$usage" 1>&2
+ diag "error: host triplet expected after --host"
+ diag "$usage"
exit 1
fi
- host=$1
+ 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
- echo "error: unable to guess host triplet" 1>&2
+ if ! host="$(./config.guess)"; then
+ diag "error: unable to guess host triplet"
exit 1
fi
else
- if ! chost=`./config.sub $host`; then
- echo "error: unable to canonicalize host triplet '$host'" 1>&2
+ if ! chost="$(./config.sub "$host")"; then
+ diag "error: unable to canonicalize host triplet '$host'"
exit 1
fi
- host=$chost
+ host="$chost"
fi
# See if there is libbutl or libbutl-* in the current directory and
@@ -79,9 +89,9 @@ fi
#
if test -z "$libbutl"; then
if test -d libbutl; then
- libbutl=libbutl
+ libbutl="libbutl"
else
- libbutl=`echo libbutl-*/`
+ libbutl="$(echo libbutl-*/)"
if test ! -d "$libbutl"; then
libbutl=
fi
@@ -90,9 +100,9 @@ fi
if test -z "$libbutl"; then
if test -d ../libbutl; then
- libbutl=../libbutl
+ libbutl="../libbutl"
else
- libbutl=`echo ../libbutl-*/`
+ libbutl="$(echo ../libbutl-*/)"
if test ! -d "$libbutl"; then
libbutl=
fi
@@ -100,7 +110,7 @@ if test -z "$libbutl"; then
fi
if test -z "$libbutl"; then
- echo "error: unable to find libbutl, use --libbutl to specify its location" 1>&2
+ diag "error: unable to find libbutl, use --libbutl to specify its location"
exit 1
fi
@@ -116,5 +126,5 @@ src="$src build2/test/*.cxx"
src="$src build2/install/*.cxx"
src="$src $libbutl/butl/*.cxx"
-echo $cxx -I$libbutl -I. '-DBUILD2_HOST_TRIPLET="'$host'"' -std=c++1y $* -o build2/b-boot $src
-exec $cxx -I$libbutl -I. '-DBUILD2_HOST_TRIPLET="'$host'"' -std=c++1y $* -o build2/b-boot $src
+set -x
+"$cxx" -I"$libbutl" -I. '-DBUILD2_HOST_TRIPLET="'"$host"'"' -std=c++1y "$@" -o build2/b-boot $src