configure.in

来自「TCPDUMP的C语言源代码,是在数据链路层的应用」· IN 代码 · 共 1,039 行 · 第 1/2 页

AC_CHECK_FUNCS(setlinebuf alarm)

needsnprintf=no
AC_CHECK_FUNCS(vsnprintf snprintf,,
	[needsnprintf=yes])
if test $needsnprintf = yes; then
	AC_LIBOBJ(snprintf)
fi

AC_LBL_TYPE_SIGNAL

AC_SEARCH_LIBS(dnet_htoa, dnet, AC_DEFINE(HAVE_DNET_HTOA))

AC_CHECK_LIB(rpc, main)		dnl It's unclear why we might need -lrpc

dnl Some platforms may need -lnsl for getrpcbynumber.
AC_SEARCH_LIBS(getrpcbynumber, nsl, AC_DEFINE(HAVE_GETRPCBYNUMBER))

dnl AC_CHECK_LIB(z, uncompress)
dnl AC_CHECK_HEADERS(zlib.h)

AC_LBL_LIBPCAP(V_PCAPDEP, V_INCLS)

#
# Check for these after AC_LBL_LIBPCAP, so we link with the appropriate
# libraries (e.g., "-lsocket -lnsl" on Solaris).
#
# We don't use AC_REPLACE_FUNCS because that uses AC_CHECK_FUNCS which
# use AC_CHECK_FUNC which doesn't let us specify the right #includes
# to make this work on BSD/OS 4.x.  BSD/OS 4.x ships with the BIND8
# resolver, and the way it defines inet_{ntop,pton} is rather strange;
# it does not ship with a libc symbol "inet_ntop()", it ships with
# "_inet_ntop()", and has a #define macro in one of the system headers
# to rename it.
#
dnl AC_TRY_COMPILE(inet_ntop inet_pton inet_aton)
AC_MSG_CHECKING(for inet_ntop)
AC_TRY_LINK([#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>], [char src[4], dst[128];
inet_ntop(AF_INET, src, dst, sizeof(dst));],
	[AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)
	AC_LIBOBJ(inet_ntop)])
AC_MSG_CHECKING(for inet_pton)
AC_TRY_LINK([#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>], [char src[128], dst[4];
inet_pton(AF_INET, src, dst);],
	[AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)
	AC_LIBOBJ(inet_pton)])
AC_MSG_CHECKING(for inet_aton)
AC_TRY_LINK([#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/inet.h>], [char src[128];
struct in_addr dst;
inet_aton(src, &dst);],
	[AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)
	AC_LIBOBJ(inet_aton)])

#
# Check for these after AC_LBL_LIBPCAP, for the same reason.
#
# You are in a twisty little maze of UN*Xes, all different.
# Some might not have ether_ntohost().
# Some might have it, but not declare it in any header file.
# Some might have it, but declare it in <netinet/if_ether.h>.
# Some might have it, but declare it in <netinet/ether.h>
# (And some might have it but document it as something declared in
# <netinet/ethernet.h>, although <netinet/if_ether.h> appears to work.)
#
# Before you is a C compiler.
#
AC_CHECK_FUNCS(ether_ntohost, [
    AC_CACHE_CHECK(for buggy ether_ntohost, ac_cv_buggy_ether_ntohost, [
	AC_TRY_RUN([
		#include <netdb.h>
		#include <sys/types.h>
		#include <sys/param.h>
		#include <sys/socket.h>

		int
		main(int argc, char **argv)
		{
			u_char ea[6] = { 0xff, 0xff, 0xff, 0xff, 0xff };
			char name[MAXHOSTNAMELEN];

			ether_ntohost(name, (struct ether_addr *)ea);
			exit(0);
		}
	], [ac_cv_buggy_ether_ntohost=no],
	   [ac_cv_buggy_ether_ntohost=yes],
	   [ac_cv_buggy_ether_ntohost="not while cross-compiling"])])
    if test "$ac_cv_buggy_ether_ntohost" = "no"; then
	AC_DEFINE(USE_ETHER_NTOHOST)
    fi
])
if test "$ac_cv_func_ether_ntohost" = yes -a \
    "$ac_cv_buggy_ether_ntohost" = "no"; then
	#
	# OK, we have ether_ntohost().  Do we have <netinet/if_ether.h>?
	#
	if test "$ac_cv_header_netinet_if_ether_h" = yes; then
		#
		# Yes.  Does it declare ether_ntohost()?
		#
		AC_CHECK_DECL(ether_ntohost,
		    [
			AC_DEFINE(NETINET_IF_ETHER_H_DECLARES_ETHER_NTOHOST,,
			    [Define to 1 if netinet/if_ether.h declares `ether_ntohost'])
		    ],,
		    [
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
struct mbuf;
struct rtentry;
#include <net/if.h>
#include <netinet/if_ether.h>
		    ])
	fi
	#
	# Did that succeed?
	#
	if test "$ac_cv_have_decl_ether_ntohost" != yes; then
		#
		# No, how about <netinet/ether.h>, as on Linux?
		#
		AC_CHECK_HEADERS(netinet/ether.h)
		if test "$ac_cv_header_netinet_ether_h" = yes; then
			#
			# We have it - does it declare ether_ntohost()?
			# Unset ac_cv_have_decl_ether_ntohost so we don't
			# treat the previous failure as a cached value and
			# suppress the next test.
			#
			unset ac_cv_have_decl_ether_ntohost
			AC_CHECK_DECL(ether_ntohost,
			    [
				AC_DEFINE(NETINET_ETHER_H_DECLARES_ETHER_NTOHOST,,
				    [Define to 1 if netinet/ether.h declares `ether_ntohost'])
			    ],,
			    [
#include <netinet/ether.h>
			    ])
		fi
	fi
	#
	# Is ether_ntohost() declared?
	#
	if test "$ac_cv_have_decl_ether_ntohost" != yes; then
		#
		# No, we'll have to declare it ourselves.
		# Do we have "struct ether_addr"?
		#
		AC_CHECK_TYPES(struct ether_addr,,,
		    [
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
struct mbuf;
struct rtentry;
#include <net/if.h>
#include <netinet/if_ether.h>
		    ])
		AC_DEFINE(HAVE_DECL_ETHER_NTOHOST, 0,
		    [Define to 1 if you have the declaration of `ether_ntohost', and to 0 if you
don't.])
	else
		AC_DEFINE(HAVE_DECL_ETHER_NTOHOST, 1,
		    [Define to 1 if you have the declaration of `ether_ntohost', and to 0 if you
don't.])
	fi
fi

# libdlpi is needed for Solaris 11 and later.
AC_CHECK_LIB(dlpi, dlpi_walk, LIBS="$LIBS -ldlpi" LDFLAGS="-L/lib $LDFLAGS", ,-L/lib)

dnl portability macros for getaddrinfo/getnameinfo
dnl
dnl Check for sa_len
AC_CHECK_SA_LEN(ac_cv_sockaddr_has_sa_len)
if test "$ac_cv_sockaddr_has_sa_len" = no; then
	missing_includes=yes
fi

#
# Do we have the new open API?  Check for pcap_create, and assume that,
# if we do, we also have pcap_activate() and the other new routines.
AC_CHECK_FUNCS(pcap_create)

AC_CHECK_FUNCS(pcap_findalldevs pcap_dump_flush pcap_lib_version)
if test $ac_cv_func_pcap_findalldevs = "yes" ; then
dnl Check for Mac OS X, which may ship pcap.h from 0.6 but libpcap may
dnl be 0.8; this means that lib has pcap_findalldevs but header doesn't
dnl have pcap_if_t.
    savedppflags="$CPPLAGS"
    CPPFLAGS="$CPPFLAGS $V_INCLS"
    AC_CHECK_TYPES(pcap_if_t, , , [#include <pcap.h>])
    CPPFLAGS="$savedcppflags"
fi

if test $ac_cv_func_pcap_lib_version = "no" ; then
    AC_MSG_CHECKING(whether pcap_version is defined by libpcap)
    AC_TRY_LINK([],
       [
	extern char pcap_version[];

	return (int)pcap_version;
       ],
       ac_lbl_cv_pcap_version_defined=yes,
       ac_lbl_cv_pcap_version_defined=no)
    if test "$ac_lbl_cv_pcap_version_defined" = yes ; then
    	AC_MSG_RESULT(yes)
	AC_DEFINE(HAVE_PCAP_VERSION)
    else
	AC_MSG_RESULT(no)
    fi
fi
AC_MSG_CHECKING(whether pcap_debug is defined by libpcap)
AC_TRY_LINK([],
   [
	extern int pcap_debug;

	return pcap_debug;
   ],
   ac_lbl_cv_pcap_debug_defined=yes,
   ac_lbl_cv_pcap_debug_defined=no)
if test "$ac_lbl_cv_pcap_debug_defined" = yes ; then
	AC_MSG_RESULT(yes)
	AC_DEFINE(HAVE_PCAP_DEBUG)
else
	AC_MSG_RESULT(no)
	#
	# OK, what about "yydebug"?
	#
	AC_MSG_CHECKING(whether yydebug is defined by libpcap)
	AC_TRY_LINK([],
	   [
		extern int yydebug;

		return yydebug;
	   ],
	   ac_lbl_cv_yydebug_defined=yes,
	   ac_lbl_cv_yydebug_defined=no)
	if test "$ac_lbl_cv_yydebug_defined" = yes ; then
		AC_MSG_RESULT(yes)
		AC_DEFINE(HAVE_YYDEBUG)
	else
		AC_MSG_RESULT(no)
	fi
fi
AC_REPLACE_FUNCS(bpf_dump)	dnl moved to libpcap in 0.6

V_GROUP=0
if test -f /etc/group -a ! -z "`grep '^wheel:' /etc/group`" ; then
	V_GROUP=wheel
fi
case "$host_os" in

aix*)
	dnl Workaround to enable certain features
	AC_DEFINE(_SUN)
	;;

irix*)
	V_GROUP=sys
	;;

osf*)
	V_GROUP=system
	;;

solaris*)
	V_GROUP=sys
	;;
esac

if test -f /dev/bpf0 ; then
	V_GROUP=bpf
fi

#
# Check for some headers introduced in later versions of libpcap
# and used by some printers.
#
savedcppflags="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $V_INCLS"
AC_CHECK_HEADERS(pcap/bluetooth.h)
CPPFLAGS="$savedcppflags"

AC_CHECK_HEADERS(sys/bitypes.h)

AC_CHECK_TYPE([int8_t], ,
	[AC_DEFINE([int8_t], [signed char],
	[Define to `signed char' if int8_t not defined.])])
AC_CHECK_TYPE([u_int8_t], ,
	[AC_DEFINE([u_int8_t], [unsigned char],
	[Define to `unsigned char' if u_int8_t not defined.])],
	[AC_INCLUDES_DEFAULT
#ifdef HAVE_SYS_BITYPES_H
#include <sys/bitypes.h>
#endif])
AC_CHECK_TYPE([int16_t], ,
	[AC_DEFINE([int16_t], [short],
	[Define to `short' if int16_t not defined.])])
AC_CHECK_TYPE([u_int16_t], ,
	[AC_DEFINE([u_int16_t], [unsigned short],
	[Define to `unsigned short' if u_int16_t not defined.])],
	[AC_INCLUDES_DEFAULT
#ifdef HAVE_SYS_BITYPES_H
#include <sys/bitypes.h>
#endif])
AC_CHECK_TYPE([int32_t], ,
	[AC_DEFINE([int32_t], [int],
	[Define to `int' if int32_t not defined.])])
AC_CHECK_TYPE([u_int32_t], ,
	[AC_DEFINE([u_int32_t], [unsigned int],
	[Define to `unsigned int' if u_int32_t not defined.])],
	[AC_INCLUDES_DEFAULT
#ifdef HAVE_SYS_BITYPES_H
#include <sys/bitypes.h>
#endif])
AC_CHECK_TYPE([int64_t], ,
	[AC_DEFINE([int64_t], [long long],
	[Define to `long long' if int64_t not defined.])])
AC_CHECK_TYPE([u_int64_t], ,
	[AC_DEFINE([u_int64_t], [unsigned long long],
	[Define to `unsigned long long' if u_int64_t not defined.])],
	[AC_INCLUDES_DEFAULT
#ifdef HAVE_SYS_BITYPES_H
#include <sys/bitypes.h>
#endif])

#
# We can't just check for <inttypes.h> - some systems have one that
# doesn't define all the PRI[doxu]64 macros.
#
AC_CHECK_HEADERS(inttypes.h,
  [
    #
    # OK, we have inttypes.h, but does it define those macros?
    #
    AC_MSG_CHECKING([[whether inttypes.h defines the PRI[doxu]64 macros]])
    AC_COMPILE_IFELSE(
      [
	AC_LANG_SOURCE(
	  [[
	    #include <inttypes.h>
	    #include <stdio.h>
	    #include <sys/types.h>
	    #ifdef HAVE_SYS_BITYPES_H
	    #include <sys/bitypes.h>
	    #endif

	    main()
	    {
	      printf("%" PRId64 "\n", (u_int64_t)1);
	      printf("%" PRIo64 "\n", (u_int64_t)1);
	      printf("%" PRIx64 "\n", (u_int64_t)1);
	      printf("%" PRIu64 "\n", (u_int64_t)1);
	    }
	  ]])
      ],
      [
	AC_MSG_RESULT(yes)
	ac_lbl_inttypes_h_defines_formats=yes
      ],
      [
	AC_MSG_RESULT(no)
	ac_lbl_inttypes_h_defines_formats=no
      ])
  ],
  [
    #
    # We don't have inttypes.h, so it obviously can't define those
    # macros.
    #
    ac_lbl_inttypes_h_defines_formats=no
  ])
if test "$ac_lbl_inttypes_h_defines_formats" = no; then
  AC_LBL_CHECK_64BIT_FORMAT(l,
    [
      AC_LBL_CHECK_64BIT_FORMAT(ll,
        [
          AC_LBL_CHECK_64BIT_FORMAT(L,
	    [
	      AC_LBL_CHECK_64BIT_FORMAT(q,
	        [
	          AC_MSG_ERROR([neither %llx nor %Lx nor %qx worked on a 64-bit integer])
	        ])
	    ])
	])
    ])
fi

AC_PROG_RANLIB

AC_LBL_DEVEL(V_CCOPT)

AC_LBL_SOCKADDR_SA_LEN

AC_LBL_UNALIGNED_ACCESS

AC_VAR_H_ERRNO

# Check for SSLeay
AC_MSG_CHECKING(whether to use SSLeay libcrypto)
# Specify location for both includes and libraries.
want_libcrypto=youmama
AC_ARG_WITH(crypto,
    AS_HELP_STRING([--with-crypto@<:@=PATH@:>@],
		   [use SSLeay libcrypto (located in directory PATH, if supplied).  @<:@default=yes, if available@:>@]),
[
	if test $withval = no
	then
		want_libcrypto=no
		AC_MSG_RESULT(no)
	elif test $withval = yes
	then
		want_libcrypto=yes
		AC_MSG_RESULT(yes)
	else
		want_libcrypto=yes
		AC_MSG_RESULT(yes)
		crypto_dir=$withval
	fi
],[
	#
	# Use libcrypto if it's present, otherwise don't.
	#
	want_libcrypto=ifavailable
	AC_MSG_RESULT([yes, if available])
])
if test "$want_libcrypto" != "no"; then
	ac_cv_ssleay_path=no
	incdir=no
	if test "x$crypto_dir" = x; then
		#
		# Location not specified; check the default locations.
		#
		AC_MSG_CHECKING(where SSLeay is located)
		dirs="/usr /usr/local /usr/local/ssl /usr/pkg"
		if test "x${host_alias}" != x; then
			dirs="/usr/${host_alias} $dirs"
		fi
		for dir in $dirs; do
			AC_LBL_SSLEAY($dir)

			if test "$ac_cv_ssleay_path" != "no" -a "$incdir" != "no"; then
				break;
			else
				ac_cv_ssleay_path=no
				incdir=no
			fi
		done
		if test "$ac_cv_ssleay_path" != no; then
			AC_MSG_RESULT($ac_cv_ssleay_path)
		fi
	else
		AC_MSG_CHECKING(for SSLeay in $crypto_dir)
		AC_LBL_SSLEAY($crypto_dir)
		if test "$ac_cv_ssleay_path" != no; then
			AC_MSG_RESULT(found)
		fi
	fi
	if test "$ac_cv_ssleay_path" != no; then
		V_INCLS="$V_INCLS $incdir"
		LDFLAGS="-L$dir/lib $LDFLAGS"
		if test -f $ac_cv_ssleay_path/lib/libRSAglue.a; then
			LIBS="$LIBS -lRSAglue"
		fi
		if test -f $ac_cv_ssleay_path/lib/librsaref.a; then
			LIBS="$LIBS -lrsaref"
		fi
		AC_CHECK_LIB(crypto, DES_cbc_encrypt)

		CPPFLAGS="$CPPFLAGS $V_INCLS"
		AC_CHECK_HEADERS(openssl/evp.h)
	else
		#
		# Not found.  Did the user explicitly ask for it?
		#
		AC_MSG_RESULT(not found)
		if test "$want_libcrypto" = yes; then
			AC_MSG_ERROR(SSLeay not found)
		fi
	fi
fi

dnl
dnl set additional include path if necessary
if test "$missing_includes" = "yes"; then
	CPPFLAGS="$CPPFLAGS -I\$(srcdir)/missing"
	V_INCLS="$V_INCLS -I\$(srcdir)/missing"
fi

AC_SUBST(V_CCOPT)
AC_SUBST(V_DEFS)
AC_SUBST(V_GROUP)
AC_SUBST(V_INCLS)
AC_SUBST(V_PCAPDEP)
AC_SUBST(LOCALSRC)

AC_PROG_INSTALL

AC_CONFIG_HEADER(config.h)

AC_OUTPUT_COMMANDS([if test -f .devel; then
	echo timestamp > stamp-h
	cat Makefile-devel-adds >> Makefile
	make depend
fi])
AC_OUTPUT(Makefile)
exit 0