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2de413db32
More macro updates from the pa_autoconf library. Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
17 lines
782 B
Plaintext
17 lines
782 B
Plaintext
dnl --------------------------------------------------------------------------
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dnl PA_LANG_SEEN_LIST(subset)
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dnl
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dnl List of the language lang has been used in the configuration
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dnl script so far, possibly subset by [subset].
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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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AC_DEFUN([PA_LANG_SEEN_LIST],
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[m4_ifblank([$1],
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[m4_define([_pa_lang_seen_list_out],m4_dquote(m4_set_list(PA_LANG_SEEN_SET)))],
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[m4_set_delete([_pa_lang_seen_subset])dnl
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m4_set_add_all([_pa_lang_seen_subset],$1)dnl
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m4_define([_pa_lang_seen_list_out],m4_dquote(m4_cdr(m4_set_intersection([_pa_lang_seen_subset],PA_LANG_SEEN_SET))))dnl
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m4_dquote(_pa_lang_seen_list_out)])])
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