33 lines
860 B
Plaintext
33 lines
860 B
Plaintext
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dnl ----------------------------------------------------------------------
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dnl
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dnl BT_MSG_CONTROL checks for msg_control member in msghdr and that
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dnl the cmsg fields aren't broken...
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dnl
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AC_DEFUN(BT_MSG_CONTROL,
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[
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AC_CACHE_CHECK([for msg_control member in msghdr],
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bt_cv_have_msghdr_msg_control,
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[AC_TRY_COMPILE([#include <sys/types.h>
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#include <sys/socket.h>],
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[struct msghdr msg;
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msg.msg_control;],
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bt_cv_have_msghdr_msg_control=yes, bt_cv_have_msghdr_msg_control=no)])
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if test $bt_cv_have_msghdr_msg_control = yes; then
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AC_DEFINE(HAVE_MSGHDR_MSG_CONTROL)
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fi
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if test $bt_cv_have_msghdr_msg_control = yes; then
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AC_MSG_CHECKING(for broken CMSG_FIELDS)
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case "$target_os" in
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linux*)
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AC_DEFINE(BROKEN_CMSG_FIELDS)
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AC_MSG_RESULT(yes)
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;;
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*)
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AC_MSG_RESULT(no)
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;;
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esac
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fi
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])
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