#!/bin/sh
# Run this after autogen.sh, to pull in all of the gnulib-related bits.
# It's important to run *after* autogen.sh, since it updates some of
# the same files autogen.sh does, yet those from gnulib are newer,
# and match the tests.  So if a gnulib bug has been fixed since the
# snapshot taken for whatever gettext release you're using, yet you
# run "make check" against the wrong version, the corresponding unit
# test in gl-tests/ may well fail.

usage() {
  echo >&2 "\
Usage: $0 [OPTION]...
Bootstrap this package from the checked-out sources.

Options:
 --gnulib-srcdir=DIRNAME  Specify the local directory where gnulib
                          sources reside.  Use this if you already
                          have gnulib sources on your machine, and
                          do not want to waste your bandwidth downloading
                          them again.

If the file bootstrap.conf exists in the current working directory, its
contents are read as shell variables to configure the bootstrap.

Running without arguments will suffice in most cases.
"
}

for option
do
  case $option in
  --help)
    usage
    exit;;
  --gnulib-srcdir=*)
    GNULIB_SRCDIR=`expr "$option" : '--gnulib-srcdir=\(.*\)'`;;
  *)
    echo >&2 "$0: $option: unknown option"
    exit 1;;
  esac
done

cleanup_gnulib() {
  st=$?
  rm -fr .gnulib
  exit $st
}

case ${GNULIB_SRCDIR--} in
-)
  if [ ! -d gnulib ]; then
    echo "$0: getting gnulib files..."

    trap cleanup_gnulib 1 2 13 15

    git clone --depth 1 git://git.sv.gnu.org/gnulib .gnulib ||
      cleanup_gnulib

    trap - 1 2 13 15
  fi
  GNULIB_SRCDIR=.gnulib
esac

gnulib_tool=$GNULIB_SRCDIR/gnulib-tool
<$gnulib_tool || exit

# Tell gnulib to:
#   put tests in new gnulib/tests/ dir
#   put *.m4 files in new gnulib/m4/ dir
#   put *.[ch] files in new gnulib/lib/ dir.
# With --avoid=snprintf, we drop support for systems (many!) with
# losing snprintf but pull in about 30 fewer files
# With the current gnulib and gettext-0.17, the following
# files are added to m4/ by both.  But gnulib is stable enough
# and gettext-0.16.1 is new enough that they are identical.
#   compiler-flags.m4
#   inttypes_h.m4
#   longlong.m4
#   size_max.m4
#   stdint_h.m4
#   wchar_t.m4
#   wint_t.m4
#   xsize.m4

# Note that if we don't exclude the snprintf module, there are two tests
# that have incompatible licenses, so we would have to exclude them.  Even
# excluding those two test modules, find reports a total of 94 added files.
# Yes, snprintf has some heavy-duty dependents.
#  --avoid=snprintf-tests
#  --avoid=vasnprintf-tests

avoid='--avoid=snprintf'

avoid='
  --avoid=snprintf-tests
  --avoid=vasnprintf-tests
  --avoid=alloca-opt-tests
'

$gnulib_tool			\
  --lgpl			\
  $avoid			\
  --with-tests			\
  --m4-base=gnulib/m4		\
  --source-base=gnulib/lib	\
  --tests-base=gnulib/tests	\
  --import physmem getaddrinfo

rm -f				\
    .gitignore			\
    gnulib/lib/.gitignore	\
    gnulib/m4/.gitignore	\
    gnulib/tests/.gitignore

(cd gnulib/lib &&
 (cat .cvsignore; \
  ls -1 *.in.h|sed 's/\.in\.h/.h/') | sort -u > .t; mv .t .cvsignore)