49 lines
2.1 KiB
Plaintext
49 lines
2.1 KiB
Plaintext
# Copyright (c) 2015 Lucas De Marchi <lucas.de.marchi@gmail.com>
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#
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# This program is free software: you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation, either version 2 of the License, or (at your
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# option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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# Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# As a special exception, the respective Autoconf Macro's copyright owner
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# gives unlimited permission to copy, distribute and modify the configure
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# scripts that are the output of Autoconf when processing the Macro. You
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# need not follow the terms of the GNU General Public License when using
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# or distributing such scripts, even though portions of the text of the
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# Macro appear in them. The GNU General Public License (GPL) does govern
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# all other use of the material that constitutes the Autoconf Macro.
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#
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# This special exception to the GPL applies to versions of the Autoconf
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# Macro released by the Autoconf Archive. When you make and distribute a
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# modified version of the Autoconf Macro, you may extend this special
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# exception to the GPL to apply to your modified version as well.
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#
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# CC_FEATURE_APPEND([FLAGS], [ENV-TO-CHECK], [FLAG-NAME])
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AC_DEFUN([CC_FEATURE_APPEND], [
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AS_VAR_PUSHDEF([FLAGS], [$1])dnl
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AS_VAR_PUSHDEF([ENV_CHECK], [$2])dnl
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AS_VAR_PUSHDEF([FLAG_NAME], [$3])dnl
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AS_CASE([" AS_VAR_GET(FLAGS) " ],
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[*" FLAG_NAME "*], [AC_RUN_LOG([: FLAGS already contains FLAG_NAME])],
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[
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AS_IF([test "x$FLAGS" != "x"], [AS_VAR_APPEND(FLAGS, " ")])
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AS_IF([test "x$ENV_CHECK" = "xyes"],
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[AS_VAR_APPEND(FLAGS, "+FLAG_NAME")],
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[AS_VAR_APPEND(FLAGS, "-FLAG_NAME")])
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]
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)
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AS_VAR_POPDEF([FLAG_NAME])dnl
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AS_VAR_POPDEF([ENV_CHECK])dnl
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AS_VAR_POPDEF([FLAGS])dnl
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])
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