2024-07-24 01:59:19 +07:00
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# SPDX-License-Identifier: GPL-2.0-or-later WITH Autoconf-exception-macro
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2015-06-07 11:15:30 +07:00
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#
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2024-07-24 01:59:19 +07:00
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# Copyright (c) 2015 Lucas De Marchi <lucas.de.marchi@gmail.com>
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2015-06-07 11:15:30 +07:00
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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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2024-07-24 01:59:19 +07:00
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2015-06-07 11:15:30 +07:00
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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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