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1 # - Check if a given function exists and error out if not.
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2 # CFUNGE_REQUIRE_FUNCTION(_name)
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3 #
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4 # _name - Function name to check for.
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5 #
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6 # The same variables as for CheckFunctionExists affect this macro.
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7 #
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8 # Will set CFUNGE_CHECKFUNC_<name> (as CheckFunctionExists out variable).
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9 #
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10
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11 # cfunge - A standard-conforming Befunge93/98/109 interpreter in C.
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12 # Copyright (C) 2008 Arvid Norlander <anmaster AT tele2 DOT se>
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13 #
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14 # This program is free software: you can redistribute it and/or modify
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15 # it under the terms of the GNU General Public License as published by
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16 # the Free Software Foundation, either version 3 of the License, or
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17 # (at the proxy's option) any later version. Arvid Norlander is a
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18 # proxy who can decide which future versions of the GNU General Public
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19 # License can be used.
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20 #
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21 # This program is distributed in the hope that it will be useful,
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22 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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23 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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24 # GNU General Public License for more details.
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25 #
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26 # You should have received a copy of the GNU General Public License
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27 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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28
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29
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30 include(CheckFunctionExists)
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31
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32 macro(CFUNGE_REQUIRE_FUNCTION _name)
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33 CHECK_FUNCTION_EXISTS(${_name} CFUNGE_CHECKFUNC_${_name})
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34 if (NOT CFUNGE_CHECKFUNC_${_name})
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35 message(FATAL_ERROR
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36 "Your system seems to be missing the function \"${_name}\" which is required by cfunge.")
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37 endif (NOT CFUNGE_CHECKFUNC_${_name})
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38 endmacro(CFUNGE_REQUIRE_FUNCTION)
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