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On Sun, 07 Sep 2003 21:07 pm, wrote:
> The HAVE_LIBNET define is not put in the config.h by configure. I define it
> in the top of the file for testing purposes, because I do not know how to
> change
> configure.ac and related files. I also added -lnet to LIBS directly in the
> makefile
> for the same reason. I apologize for that, perhaps with some suggestions I
> can
> learn how to do it.
Here's one I prepared earlier. The key thing to know about libnet is that
it has fundamentally incompatible API changes between 1.0.x and 1.1.x.
This version makes sure we don't have version 1.1, although making it
check for another version should be obvious:
AC_CHECK_PROG([libnetconf], [libnet-config], yes)
if test "$libnetconf" != yes; then
AC_MSG_ERROR([*** libnet-config not found ***])
fi
AC_MSG_CHECKING(for libnet.h version 1.0.x)
libnet_dir="/usr/include /usr/local/include /usr/local/contrib/include"
for i in $libnet_dir; do
if test -r $i/libnet.h; then
LIBNET_INC_DIR=$i
fi
done
if test "$LIBNET_INC_DIR" != ""; then
if eval "grep LIBNET_VERSION $LIBNET_INC_DIR/libnet.h | grep -v 1.0 >/dev/null"; then
FAIL_MESSAGE("libnet 1.0.x (libnet.h)", $tmp)
fi
CPPFLAGS="${CPPFLAGS} -I${LIBNET_INC_DIR} `libnet-config --defines`"
CFLAGS="${CFLAGS} `libnet-config --cflags`"
LIBS="${LIBS} `libnet-config --libs`"
AC_MSG_RESULT(${LIBNET_INC_DIR})
else
AC_MSG_RESULT(no)
fi
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