31 lines
1.1 KiB
Plaintext
31 lines
1.1 KiB
Plaintext
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# Helper functions for option handling. -*- Autoconf -*-
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# Copyright (C) 2001-2013 Free Software Foundation, Inc.
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#
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# This file is free software; the Free Software Foundation
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# gives unlimited permission to copy and/or distribute it,
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# with or without modifications, as long as this notice is preserved.
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# _AM_MANGLE_OPTION(NAME)
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# -----------------------
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AC_DEFUN([_AM_MANGLE_OPTION],
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[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
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# _AM_SET_OPTION(NAME)
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# --------------------
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# Set option NAME. Presently that only means defining a flag for this option.
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AC_DEFUN([_AM_SET_OPTION],
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[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
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# _AM_SET_OPTIONS(OPTIONS)
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# ------------------------
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# OPTIONS is a space-separated list of Automake options.
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AC_DEFUN([_AM_SET_OPTIONS],
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[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
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# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
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# -------------------------------------------
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# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
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AC_DEFUN([_AM_IF_OPTION],
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[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
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