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libpcap.m4
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libpcap.m4
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dnl libpcap.m4--PCAP libraries and includes
dnl Derrick Brashear
dnl from KTH krb and Arla
AC_DEFUN([CMU_PCAP_INC_WHERE1], [
ac_cv_found_pcap_inc=no
if test -f "$1/pcap.h" ; then
ac_cv_found_pcap_inc=yes
fi
])
AC_DEFUN([CMU_PCAP_INC_WHERE], [
for i in $1; do
AC_MSG_CHECKING(for pcap header in $i)
CMU_PCAP_INC_WHERE1($i)
if test "$ac_cv_found_pcap_inc" = "yes"; then
ac_cv_pcap_where_inc=$i
AC_MSG_RESULT(found)
break
else
AC_MSG_RESULT(no found)
fi
done
])
AC_DEFUN([CMU_PCAP_LIB_WHERE1], [
saved_LIBS=$LIBS
LIBS="$saved_LIBS -L$1 -lpcap"
AC_TRY_LINK(,
[pcap_lookupdev("");],
[ac_cv_found_pcap_lib=yes],
ac_cv_found_pcap_lib=no)
LIBS=$saved_LIBS
])
AC_DEFUN([CMU_PCAP_LIB_WHERE], [
for i in $1; do
AC_MSG_CHECKING(for pcap library in $i)
CMU_PCAP_LIB_WHERE1($i)
CMU_TEST_LIBPATH($i, pcap)
if test "$ac_cv_found_pcap_lib" = "yes" ; then
ac_cv_pcap_where_lib=$i
AC_MSG_RESULT(found)
break
else
AC_MSG_RESULT(no found)
fi
done
])
AC_DEFUN([CMU_PCAP], [
AC_REQUIRE([CMU_FIND_LIB_SUBDIR])
AC_ARG_WITH(pcap,
[AS_HELP_STRING([--with-pcap=PREFIX], [Compile with PCAP support])],
[if test "X$with_pcap" = "X"; then
with_pcap=yes
fi])
AC_ARG_WITH(pcap-lib,
[AS_HELP_STRING([--with-pcap-lib=DIR], [use pcap libraries in DIR])],
[if test "$withval" = "yes" -o "$withval" = "no"; then
AC_MSG_ERROR([No argument for --with-pcap-lib])
fi])
AC_ARG_WITH(pcap-include,
[AS_HELP_STRING([--with-pcap-include=DIR], [use pcap headers in DIR])],
[if test "$withval" = "yes" -o "$withval" = "no"; then
AC_MSG_ERROR([No argument for --with-pcap-include])
fi])
if test "X$with_pcap" != "X"; then
if test "$with_pcap" != "yes"; then
ac_cv_pcap_where_lib=$with_pcap/$CMU_LIB_SUBDIR
ac_cv_pcap_where_inc=$with_pcap/include
fi
fi
if test "X$with_pcap_lib" != "X"; then
ac_cv_pcap_where_lib=$with_pcap_lib
fi
if test "X$ac_cv_pcap_where_lib" = "X"; then
CMU_PCAP_LIB_WHERE(/usr/ng/$CMU_LIB_SUBDIR /usr/$CMU_LIB_SUBDIR /usr/local/$CMU_LIB_SUBDIR)
fi
if test "X$with_pcap_include" != "X"; then
ac_cv_pcap_where_inc=$with_pcap_include
fi
if test "X$ac_cv_pcap_where_inc" = "X"; then
CMU_PCAP_INC_WHERE(/usr/ng/include /usr/include /usr/local/include)
fi
AC_MSG_CHECKING(whether to include pcap)
if test "X$ac_cv_pcap_where_lib" = "X" -a "X$ac_cv_pcap_where_inc" = "X"; then
ac_cv_found_pcap=no
AC_MSG_RESULT(no)
else
ac_cv_found_pcap=yes
AC_MSG_RESULT(yes)
PCAP_INC_DIR=$ac_cv_pcap_where_inc
PCAP_LIB_DIR=$ac_cv_pcap_where_lib
PCAP_INC_FLAGS="-I${PCAP_INC_DIR}"
PCAP_LIB_FLAGS="-L${PCAP_LIB_DIR} -lpcap"
if test "X$RPATH" = "X"; then
RPATH=""
fi
case "${host}" in
*-*-linux*)
if test "X$RPATH" = "X"; then
RPATH="-Wl,-rpath,${PCAP_LIB_DIR}"
else
RPATH="${RPATH}:${PCAP_LIB_DIR}"
fi
;;
*-*-hpux*)
if test "X$RPATH" = "X"; then
RPATH="-Wl,+b${PCAP_LIB_DIR}"
else
RPATH="${RPATH}:${PCAP_LIB_DIR}"
fi
;;
*-*-irix*)
if test "X$RPATH" = "X"; then
RPATH="-Wl,-rpath,${PCAP_LIB_DIR}"
else
RPATH="${RPATH}:${PCAP_LIB_DIR}"
fi
;;
*-*-solaris2*)
if test "$ac_cv_prog_gcc" = yes; then
if test "X$RPATH" = "X"; then
RPATH="-Wl,-R${PCAP_LIB_DIR}"
else
RPATH="${RPATH}:${PCAP_LIB_DIR}"
fi
else
RPATH="${RPATH} -R${PCAP_LIB_DIR}"
fi
;;
esac
AC_SUBST(RPATH)
fi
])

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