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- # ===========================================================================
- # https://www.gnu.org/software/autoconf-archive/ax_prog_tcl.html
- # ===========================================================================
- #
- # SYNOPSIS
- #
- # AX_PROG_TCL([min-version])
- #
- # DESCRIPTION
- #
- # Searches for tcl (tclsh and wish) in PATH and checks which version is
- # installed. The macro bails out if either tcl is not found or the minimum
- # version is not satisfied, unless minimum version is "0".
- #
- # Example:
- #
- # AX_PROG_TCL
- #
- # This checks for tcl and if not found, exits with an error. If found, it
- # prints tcl path and version number.
- #
- # AX_PROG_TCL([8.0])
- #
- # Checks for tcl and exits with an error if its not found or the version
- # is below 8.0.
- #
- # LICENSE
- #
- # Copyright (c) 2008 David Cluytens
- # Copyright (c) 2008 Uwe Mayer <merkosh@hadiko.de>
- #
- # This program is free software: you can redistribute it and/or modify it
- # under the terms of the GNU General Public License as published by the
- # Free Software Foundation, either version 3 of the License, or (at your
- # option) any later version.
- #
- # This program is distributed in the hope that it will be useful, but
- # WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
- # Public License for more details.
- #
- # You should have received a copy of the GNU General Public License along
- # with this program. If not, see <https://www.gnu.org/licenses/>.
- #
- # As a special exception, the respective Autoconf Macro's copyright owner
- # gives unlimited permission to copy, distribute and modify the configure
- # scripts that are the output of Autoconf when processing the Macro. You
- # need not follow the terms of the GNU General Public License when using
- # or distributing such scripts, even though portions of the text of the
- # Macro appear in them. The GNU General Public License (GPL) does govern
- # all other use of the material that constitutes the Autoconf Macro.
- #
- # This special exception to the GPL applies to versions of the Autoconf
- # Macro released by the Autoconf Archive. When you make and distribute a
- # modified version of the Autoconf Macro, you may extend this special
- # exception to the GPL to apply to your modified version as well.
-
- #serial 8
-
- AC_DEFUN([AX_PROG_TCL], [
- #-- check for tclsh in PATH
- AC_PATH_PROG([TCLSH], [tclsh], [no])
- if [(test x"$TCLSH" == x"no") && (test x"$1" != x"0")]; then
- AC_MSG_ERROR([tclsh not found])
- fi
-
- #-- check for wish in PATH
- AC_PATH_PROG([WISH], [wish], [no])
-
- #-- check vor tcl version
- AC_MSG_CHECKING([tcl version])
- version=`echo "puts [[set tcl_version]]" | tclsh -`
- AC_MSG_RESULT([$version])
-
- #-- compare tcl version with min-version
- required=$1
- if [(test x"$1" != x"") && (test "${required/./}" -gt "${version/./}")]; then
- AC_MSG_ERROR([tcl version $1 required])
- fi
- ])dnl
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