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Hello all.

There is one other thing in Autoconf files of tcpslice and tcpdump that
jumped out at me:

savedcppflags="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $V_INCLS"
AC_CHECK_HEADERS(pcap/pcap-inttypes.h)
AC_CHECK_FUNCS(pcap_lib_version)
CPPFLAGS="$savedcppflags"

It looks like either in a C project context CPPFLAGS works in a
non-obvious way, or is a no-op.

-- 
    Denis Ovsienko

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