File: configure.in

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ad
dnl Process this file with autoconf to produce a configure script.
dnl The ONLY thing this is used for is to configure for different
dnl linux architectures and configurations, it is not used to make the
dnl code more portable

dnl You MUST have an environment that has all the POSIX functions and
dnl some of the more populare bsd/sysv ones (like select). You'll also
dnl need a C++ compiler that is semi-standard conformant, exceptions are 
dnl not used but STL is.

dnl 'make -f Makefile startup' will generate the configure file from 
dnl configure.in correctly and can be run at any time

AC_PREREQ(2.50)
AC_INIT(configure.in)
AC_CONFIG_AUX_DIR(buildlib)
AC_CONFIG_HEADER(include/config.h:buildlib/config.h.in include/apti18n.h:buildlib/apti18n.h.in)

dnl -- SET THIS TO THE RELEASE VERSION --
AC_DEFINE_UNQUOTED(VERSION,"0.6.46.4-0.1+etch1")
PACKAGE="apt"
AC_DEFINE_UNQUOTED(PACKAGE,"$PACKAGE")
AC_SUBST(PACKAGE)

dnl Check the archs, we want the target type.
AC_CANONICAL_SYSTEM

dnl Check our C compiler
AC_CHECK_TOOL_PREFIX
AC_PROG_CC
AC_ISC_POSIX

dnl Check for other programs
AC_PROG_CXX
AC_PROG_CPP
AC_PROG_RANLIB
AC_CHECK_TOOL(AR,ar,"ar")

dnl Checks for sockets
SAVE_LIBS="$LIBS"
LIBS=""
AC_SEARCH_LIBS(gethostbyname,nsl)
AC_SEARCH_LIBS(connect,socket)
SOCKETLIBS="$LIBS"
AC_SUBST(SOCKETLIBS)
LIBS="$SAVE_LIBS"
 
dnl Checks for pthread -- disabled due to glibc bugs jgg
dnl AC_CHECK_LIB(pthread, pthread_create,[AC_DEFINE(HAVE_PTHREAD) PTHREADLIB="-lpthread"])
AC_SUBST(PTHREADLIB)
dnl if test "$PTHREADLIB" != "-lpthread"; then
dnl   AC_MSG_ERROR(failed: I need posix threads, pthread)
dnl fi

dnl Check for BDB
saveLIBS="$LIBS"
LIBS="$LIBS -ldb"

AC_CHECK_HEADER(db.h,
     [AC_MSG_CHECKING(if we can link against BerkeleyDB)
      AC_LINK_IFELSE(
      [AC_LANG_PROGRAM(
       [#include <db.h>],
       [int r, s, t; db_version(&r, &s, &t);]
      )],
      [AC_DEFINE(HAVE_BDB)
       BDBLIB="-ldb"
       AC_MSG_RESULT(yes)],
      [BDBLIB=""
       AC_MSG_RESULT(no)]
    )]
)

LIBS="$saveLIBS"

AC_SUBST(BDBLIB)

dnl Converts the ARCH to be something singular for this general CPU family
dnl This is often the dpkg architecture string.
AC_MSG_CHECKING(system architecture)
archset="`awk \" ! /^#|^\\\$/ { if(match(\\\"$target_cpu\\\",\\\"^\\\"\\\$1\\\"\\\$\\\")) {print \\\$2; exit}}\" $srcdir/buildlib/archtable`"
if test "x$archset" = "x"; then
  AC_MSG_ERROR(failed: use --host= or check buildlib/archtable)
fi
AC_MSG_RESULT($archset)
AC_DEFINE_UNQUOTED(COMMON_CPU,"$archset")

dnl Get a common name for the host OS - this is primarily only for HURD and is
dnl non fatal if it fails
AC_MSG_CHECKING(system OS)
osset="`awk \" ! /^#|^\\\$/ {if (match(\\\"$target_vendor-$target_os\\\",\\\$1)) {print \\\$2; exit}}\" $srcdir/buildlib/ostable`"
AC_MSG_RESULT($osset)
AC_DEFINE_UNQUOTED(COMMON_OS,"$osset")

dnl We use C99 types if at all possible
AC_CACHE_CHECK([for C99 integer types],c9x_ints,[
    AC_TRY_COMPILE([#include <inttypes.h>],
                   [uint8_t Foo1;uint16_t Foo2;uint32_t Foo3;],
		   c9x_ints=yes,c9x_ints=no)])

dnl Single Unix Spec statvfs
AC_CHECK_FUNC(statvfs,[HAVE_STATVFS=yes])
AC_SUBST(HAVE_STATVFS)

dnl Arg, linux and bsd put their statfs function in different places
if test x"$HAVE_STATVFS" != x"yes"; then
   AC_EGREP_HEADER(statfs,sys/vfs.h,[AC_DEFINE(HAVE_VFS_H)],[
   AC_EGREP_HEADER(statfs,sys/mount.h,[AC_DEFINE(HAVE_MOUNT_H)],[AC_MSG_ERROR(failed: Need statvfs)])
   ])
fi

dnl We should use the real timegm function if we have it.
AC_CHECK_FUNC(timegm,AC_DEFINE(HAVE_TIMEGM))
AC_SUBST(HAVE_TIMEGM)

dnl Check the sizes etc. of the architecture
dnl This is stupid, it should just use the AC macros like it does below
dnl Cross compilers can either get a real C library or preload the cache
dnl with their size values.
changequote(,)
archline="`awk \" ! /^#|^\\\$/ {if (match(\\\"$archset\\\",\\\$1)) {print; exit}}\" $srcdir/buildlib/sizetable | cut -f 2- -d ' '`"
if test "x$archline" != "x"; then
   changequote([,])
   set $archline
   if test "$1" = "little"; then
      ac_cv_c_bigendian=no
   else
      ac_cv_c_bigendian=yes
   fi
   size_char=$2
   size_int=$3
   size_short=$4
   size_long=$5
fi

dnl I wonder what AC_C_BIGENDIAN does if you cross compile...
dnl This is probably bogus, as above we only care if we have to build our own
dnl C9x types.
if test "$cross_compiling" = "yes" -a "x$archline" = "x"; then
  AC_MSG_ERROR(When cross compiling, architecture must be present in sizetable)
fi
AC_C_BIGENDIAN
   
dnl We do not need this if we have inttypes!
HAVE_C9X=yes
if test x"$c9x_ints" = x"no"; then
   AC_CHECK_SIZEOF(char,$size_char)
   AC_CHECK_SIZEOF(int,$size_int)
   AC_CHECK_SIZEOF(short,$size_short)
   AC_CHECK_SIZEOF(long,$size_long)
  
   HAVE_C9X=
   AC_SUBST(HAVE_C9X)
fi

dnl HP-UX sux..
AC_MSG_CHECKING(for missing socklen_t)
AC_EGREP_HEADER(socklen_t, sys/socket.h,[AC_MSG_RESULT(no)],[
	AC_DEFINE(NEED_SOCKLEN_T_DEFINE)
	NEED_SOCKLEN_T_DEFINE=yes
        AC_MSG_RESULT(missing.)])
AC_SUBST(NEED_SOCKLEN_T_DEFINE)

dnl HP-UX needs -d_XOPEN_SOURCE_EXTENDED for h_errno
AC_MSG_CHECKING(for h_errno)
AC_EGREP_HEADER(h_errno, netdb.h, [AC_MSG_RESULT(normal)],
   [CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE_EXTENDED"
    AC_EGREP_HEADER(h_errno, netdb.h, 
       [AC_MSG_RESULT(needs _XOPEN_SOURCE_EXTENDED)],
       [AC_MSG_ERROR("not found.")])
   ])

dnl Check for debiandoc
AC_PATH_PROG(DEBIANDOC_HTML,debiandoc2html)
AC_PATH_PROG(DEBIANDOC_TEXT,debiandoc2text)

dnl Check for the SGML tools needed to build man pages
AC_PATH_PROG(DOCBOOK2MAN,docbook2man)

dnl Check for the XML tools needed to build man pages
AC_PATH_PROG(XMLTO,xmlto)

dnl Check for YODL
dnl AC_CHECK_PROG(YODL_MAN,yodl2man,"yes","")

ah_NUM_PROCS
rc_GLIBC_VER
rc_LIBSTDCPP_VER
ah_GCC3DEP

dnl It used to be that the user could select translations and that could get
dnl passed to the makefiles, but now that can only work if you use special
dnl gettext approved makefiles, so this feature is unsupported by this.
ALL_LINGUAS="bg bs ca cs cy da de dz el en_GB es eu fi fr gl hu it ja ko ku nb nl nn pl pt_BR pt ro ru sk sl sv tl vi zn_CN zh_TW"
AM_GNU_GETTEXT(external)
if test x"$USE_NLS" = "xyes"; then
   AC_DEFINE(USE_NLS)
fi
AC_SUBST(USE_NLS)
AC_PATH_PROG(BASH, bash)

AC_OUTPUT(environment.mak:buildlib/environment.mak.in makefile:buildlib/makefile.in,make -s dirs)