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autoconf: add AC_LANG_SOURCE to CC_CHECK_LDFLAGS
Inspired by https://lore.kernel.org/alsa-devel/18135209-abc9-ca1c-84e0-8ac3e75caaf1@perex.cz/t/ Signed-off-by: Evgeny Vereshchagin <evvers@ya.ru>
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@@ -70,7 +70,7 @@ AC_DEFUN([CC_CHECK_LDFLAGS], [
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AS_TR_SH([cc_cv_ldflags_$1]),
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AS_TR_SH([cc_cv_ldflags_$1]),
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[ac_save_LDFLAGS="$LDFLAGS"
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[ac_save_LDFLAGS="$LDFLAGS"
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LDFLAGS="$LDFLAGS $1"
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LDFLAGS="$LDFLAGS $1"
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AC_LINK_IFELSE([int main() { return 1; }],
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AC_LINK_IFELSE([AC_LANG_SOURCE([int main() { return 1; }])],
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[eval "AS_TR_SH([cc_cv_ldflags_$1])='yes'"],
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[eval "AS_TR_SH([cc_cv_ldflags_$1])='yes'"],
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[eval "AS_TR_SH([cc_cv_ldflags_$1])="])
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[eval "AS_TR_SH([cc_cv_ldflags_$1])="])
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LDFLAGS="$ac_save_LDFLAGS"
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LDFLAGS="$ac_save_LDFLAGS"
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