# libo_FIND_MINGW_EXTERNAL_DLLS([library-names],[variable],[?exclude],[?default-value])
# uses: CC, SED, WITH_MINGW
# --------------------------------------------------------------------
AC_DEFUN([libo_FIND_MINGW_EXTERNAL_DLLS],
[if test "$WITH_MINGW" = yes -a -n "$CC"; then
    _libo_mingw_libdir=`$CC -print-sysroot`/mingw/lib
    _libo_mingw_found_la=
    _libo_mingw_test_la([$1],[_libo_mingw_found_la],[$_libo_mingw_libdir])
    if test "$_libo_mingw_found_la" = yes; then
        _libo_mingw_find_dlls([$1],[$2],[$3],[$_libo_mingw_libdir])
    else
        # no .la files found, use defaults
        $2="$4"
    fi
fi[]dnl
]) # libo_FIND_MINGW_EXTERNAL_DLLS

# libo_ADD_MINGW_EXTERNAL_DLLS([library-names],[variable],[?default-value])
# uses: CC, SED, WITH_MINGW
# --------------------------------------------------------
AC_DEFUN([libo_ADD_MINGW_EXTERNAL_DLLS],
[libo_FIND_MINGW_EXTERNAL_DLLS([$1],[_libo_mingw_found_dlls],[$$2],[$3])
if test -n "$_libo_mingw_found_dlls"; then
    $2="$$2 $_libo_mingw_found_dlls"
fi[]dnl
]) # libo_ADD_MINGW_EXTERNAL_DLLS

# _libo_mingw_get_libtool_var([key],[lib],[out-var])
m4_define([_libo_mingw_get_libtool_var],
[$3=`$SED -n -e '/^$1=/{' -e "s/.*='//" -e "s/'//" -e p -e '}' $2`[]dnl
]) # _libo_mingw_get_libtool_var

# _libo_mingw_find_dll([library],[dlls],[out-var])
m4_define([_libo_mingw_find_dll],
[_libo_mingw_get_libtool_var([dlname],[$1],[_libo_mingw_dlname])
_libo_mingw_dlname=`basename $_libo_mingw_dlname`
_libo_mingw_dll_present=
for _libo_mingw_dll in $2; do
    if test "$_libo_mingw_dlname" = "$_libo_mingw_dll"; then
        _libo_mingw_dll_present=yes
        break
    fi
done
if test -z "$_libo_mingw_dll_present"; then
    $3="$_libo_mingw_dlname"
fi[]dnl
]) # _libo_mingw_find_dll

# _libo_mingw_find_dlls([libraries],[dlls],[out-var],[libdir])
m4_define([_libo_mingw_find_dlls],
[_libo_mingw_new_dlls=
for _libo_mingw_lib in $1; do
    _libo_mingw_lib="$4/$_libo_mingw_lib.la"
    _libo_mingw_new_dll=
    _libo_mingw_find_dll([$_libo_mingw_lib],[$3 $_libo_mingw_new_dlls],[_libo_mingw_new_dll])
    if test -n "$_libo_mingw_new_dll"; then
        _libo_mingw_new_dlls="$_libo_mingw_new_dlls $_libo_mingw_new_dll"
    fi

    _libo_mingw_get_libtool_var([dependency_libs],[$_libo_mingw_lib],[_libo_mingw_dep_libs])
    for _libo_mingw_dep_lib in $_libo_mingw_dep_libs; do
        if test "${_libo_mingw_dep_lib%.la}" != "$_libo_mingw_dep_lib"; then
            _libo_mingw_new_dll=''
            _libo_mingw_find_dll([$_libo_mingw_dep_lib],[$3 $_libo_mingw_new_dlls],[_libo_mingw_new_dll])
            if test -n "$_libo_mingw_new_dll"; then
                _libo_mingw_new_dlls="$_libo_mingw_new_dlls $_libo_mingw_new_dll"
            fi
        fi
    done
done
$2="$_libo_mingw_new_dlls"[]dnl
]) # _libo_mingw_find_dlls

# _libo_mingw_test_la([libraries],[out-var],[libdir])
m4_define([_libo_mingw_test_la],
[for _libo_mingw_lib in $1; do
    if test -f "$3/$_libo_mingw_lib.la"; then
        $2=yes
        break
    fi
done[]dnl
]) # _libo_mingw_test_la