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2de413db32
More macro updates from the pa_autoconf library. Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
20 lines
758 B
Plaintext
20 lines
758 B
Plaintext
dnl --------------------------------------------------------------------------
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dnl PA_LANG_SEEN_SET
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dnl
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dnl Set of the languages that have been used in the configuration.
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dnl
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dnl This relies on overriding _AC_LANG_SET(from, to),
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dnl the internal implementation of _AC_LANG.
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dnl
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dnl The very first language transition [] -> [C] is ignored, because
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dnl it is done from AC_INIT regardless of any user specified language.
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dnl --------------------------------------------------------------------------
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m4_ifndef([_PA_LANG_SET],
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[m4_rename([_AC_LANG_SET], [_PA_LANG_SET])
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m4_set_delete([_pa_lang_seen_set])
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m4_defun([_AC_LANG_SET],
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[m4_ifnblank([$1],[m4_set_add([_pa_lang_seen_set],[$2])])_PA_LANG_SET($@)])])
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AC_DEFUN([PA_LANG_SEEN_SET],[[_pa_lang_seen_set]])
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