Blame m4/vapigen.m4

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dnl vala.m4
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dnl
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dnl Copyright 2010 Marc-Andre Lureau
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dnl Copyright 2011 Rodney Dawes <dobey.pwns@gmail.com>
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dnl
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dnl This library is free software; you can redistribute it and/or
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dnl modify it under the terms of the GNU Lesser General Public
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dnl License as published by the Free Software Foundation; either
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dnl version 2.1 of the License, or (at your option) any later version.
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dnl
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dnl This library is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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dnl Lesser General Public License for more details.
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dnl
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dnl You should have received a copy of the GNU Lesser General Public
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dnl License along with this library; if not, write to the Free Software
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dnl Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
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dnl dropped everything but VALA_PROG_VAPIGEN - Jens Georg <mail@jensge.org>
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# Check whether the Vala API Generator exists in `PATH'. If it is found,
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# the variable VAPIGEN is set. Optionally a minimum release number of the
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# generator can be requested.
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#
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# VALA_PROG_VAPIGEN([MINIMUM-VERSION])
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# ------------------------------------
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AC_DEFUN([GUPNP_PROG_VAPIGEN],
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[AC_PATH_PROG([VAPIGEN], [vapigen], [])
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  AS_IF([test -z "$VAPIGEN"],
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    [AC_MSG_WARN([No Vala API Generator found. You will not be able to generate .vapi files.])],
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    [AS_IF([test -n "$1"],
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        [AC_MSG_CHECKING([$VAPIGEN is at least version $1])
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         am__vapigen_version=`$VAPIGEN --version | sed 's/Vala API Generator  *//'`
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         AS_VERSION_COMPARE([$1], ["$am__vapigen_version"],
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           [AC_MSG_RESULT([yes])],
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           [AC_MSG_RESULT([yes])],
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           [AC_MSG_RESULT([no])
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            AC_MSG_WARN([Vala API Generator $1 not found.])
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            VAPIGEN=""
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           ])])])
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])