dnl
dnl Configure script for LibGTop
dnl

AC_INIT(copyright.txt)
AM_CONFIG_HEADER(config.h)
AC_CANONICAL_SYSTEM

dnl This is required at several places
AC_CHECK_PROG(ac_dc_found, dc, yes, no)
if test x$ac_dc_found != xyes ; then
AC_MSG_ERROR([
*** The "dc" utility was not found on your system.
***
*** When using RedHat Linux, you need to install the "bc" package.
***
*** It is now part of the "bc" package, so you should look at
*** ftp://ftp.gnu.org/pub/gnu/bc/ if you want to compile it yourself.
***
*** Other systems and distributions may also have it in their "bc" package,
*** so if there's no "dc" one, please look for "bc".
***])
fi

. $srcdir/LIBGTOP-VERSION
AM_INIT_AUTOMAKE($PACKAGE, $VERSION)

AC_SUBST(LIBGTOP_MAJOR_VERSION)
AC_SUBST(LIBGTOP_MINOR_VERSION)
AC_SUBST(LIBGTOP_MICRO_VERSION)
AC_SUBST(LIBGTOP_INTERFACE_AGE)
AC_SUBST(LIBGTOP_BINARY_AGE)
AC_SUBST(LIBGTOP_SERVER_VERSION)
AC_SUBST(LIBGTOP_VERSION)
AC_SUBST(LIBGTOP_VERSION_CODE)

# libtool versioning
LT_RELEASE=$LIBGTOP_MAJOR_VERSION.$LIBGTOP_MINOR_VERSION
LT_CURRENT=`expr $LIBGTOP_MICRO_VERSION - $LIBGTOP_INTERFACE_AGE`
LT_REVISION=$LIBGTOP_INTERFACE_AGE
LT_AGE=`expr $LIBGTOP_BINARY_AGE - $LIBGTOP_INTERFACE_AGE`
LT_VERSION_INFO='-version-info ${LT_CURRENT}:${LT_REVISION}:${LT_AGE} -release ${LT_RELEASE}'
AC_SUBST(LT_VERSION_INFO)
AC_SUBST(LT_RELEASE)
AC_SUBST(LT_CURRENT)
AC_SUBST(LT_REVISION)
AC_SUBST(LT_AGE)

AM_ACLOCAL_INCLUDE(. macros)

AC_ISC_POSIX
AC_PROG_CC
AC_STDC_HEADERS
AC_ARG_PROGRAM

dnl We need this at some places.
libgtop_top_builddir=`pwd`
AC_SUBST(libgtop_top_builddir)

dnl We don't use `AC_PROG_AWK' since it checks for mawk first which
dnl does not work for libgtop.
AC_CHECK_PROGS(AWK, gawk awk, )
test -z "$AWK" && AC_MSG_ERROR([Sorry, you need a working awk interpreter.])

dnl Most people should have a working perl interpreter on their system
AC_CHECK_PROGS(PERL, perl5 perl)
test -z "$PERL" && AC_MSG_ERROR([You need to have a working perl interpreter.])

AC_CHECK_TOOL(CC,gcc)
AC_CHECK_TOOL(RANLIB,ranlib)
AC_CHECK_TOOL(AS,as)
AC_CHECK_TOOL(AR,ar)
AC_CHECK_TOOL(NM,nm)

NM=`which $NM`
export CC CXX RANLIB LD AS AR NM

AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET

export cross_compiling

AM_PROG_LIBTOOL

dnl Let the user enable compiler warnings
GNOME_COMPILE_WARNINGS

GNOME_INIT_HOOK(gnome_found=yes)

if test "x$gnome_found" != xyes; then
  if test "x$want_gnome" != xno ; then
    AC_MSG_ERROR([
*** GNOME was not found on this system. ***

*** If you want to use LibGTop without GNOME, you need
*** to give configure the --without-gnome parameter.
])
  else
    AC_DEFINE(WITHOUT_GNOME)
  fi
  GNOME_SUPPORT_CHECKS
else
  if test "x$want_gnome" != xno ; then
    AM_CONDITIONAL(BUILD_GNOME_SUPPORT, false)
  else
    GNOME_SUPPORT_CHECKS
  fi
fi

AM_CONDITIONAL(CROSS_COMPILING, test "x$cross_compiling" = xyes)

GNOME_LIBGTOP_SYSDEPS
GNOME_LIBGTOP_TYPES

AC_ARG_WITH(libgtop-inodedb,
[  --with-libgtop-inodedb  Build the inodedb stuff (default=no)],
[build_inodedb="$withval"], [build_inodedb=no])

LIBGTOP_EXTRA_LIBS=

if test x$build_inodedb = xyes ; then
  AC_CHECK_LIB(gdbm, gdbm_open, LIBGTOP_EXTRA_LIBS='-lgdbm', build_inodedb=no)
fi

AM_CONDITIONAL(INODEDB, test x$build_inodedb = xyes)

if test x$build_inodedb = xyes ; then
  AC_DEFINE(GLIBTOP_INODEDB)
fi

AC_DEFINE(GLIBTOP_NAMES)

AM_CONDITIONAL(ENABLE_STATIC, test x$enable_static = xyes)
AM_CONDITIONAL(ENABLE_SHARED, test x$enable_static = xyes)

AM_PROG_LIBTOOL

AM_PATH_GLIB(1.2.0,,AC_MSG_ERROR(GLIB >= 1.2.0 is required for LibGTop))

dnl You need to uncomment the following line if you want to use
dnl libGTop without Gnome.
dnl GNOME_SUPPORT_CHECKS

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
AC_TYPE_OFF_T
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_STRUCT_ST_RDEV
AC_HEADER_TIME
AC_STRUCT_TM
AC_TYPE_UID_T

dnl For SunOS
AC_CHECK_TYPE(ssize_t, int)
AC_CHECK_HEADERS(memory.h)
AC_CHECK_HEADERS(string.h strings.h, break)
AC_REPLACE_FUNCS(strerror)

dnl dlopen() and dlsym()
DL_LIB=
AC_CHECK_FUNCS(dlopen,,[
  AC_CHECK_LIB(dl, dlopen, DL_LIB="-ldl", [
    AC_CHECK_LIB(dld, shl_load, DL_LIB="-ldld", [
      AC_CHECK_FUNCS(dlopen, DL_LIB="", DL_LIB="")
    ])
  ])
])
oLIBS="$LIBS"
LIBS="$LIBS $DL_LIB"
AC_CHECK_FUNCS(dlerror,,)
LIBS="$oLIBS"
AC_SUBST(DL_LIB)

dnl Solaris
AC_CHECK_LIB(kstat, kstat_open)
AC_CHECK_FUNCS(getloadavg swapctl)
AC_CHECK_HEADERS(procfs.h sys/procfs.h, break)

dnl Some versions of Solaris require -lelf for -lkvm
AC_CHECK_LIB(kvm, kvm_open,[
  LIBS="-lkvm $LIBS"
],[AC_MSG_CHECKING(for kvm_open in -lkvm with -lelf)
   AC_CACHE_VAL(ac_cv_lib_kvm_with_elf,
   [ac_save_LIBS="$LIBS"
    LIBS="-lkvm -lelf $LIBS"
    AC_TRY_LINK([char kvm_open();], [kvm_open()],
                ac_cv_lib_kvm_with_elf=yes, ac_cv_lib_kvm_with_elf=no)
    LIBS="$ac_save_LIBS"
   ])
   if test "$ac_cv_lib_kvm_with_elf" = "yes"; then
     AC_MSG_RESULT(yes)
     LIBS="-lkvm -lelf $LIBS"
   else
     AC_MSG_RESULT(no)
   fi
])

dnl For DEC OSF1
AC_CHECK_LIB(mach, vm_statistics)

dnl For some broken libc5 systems (Debian 1.3)                                                           
saved_CFLAGS=$CFLAGS                                                                                     
CFLAGS="$CFLAGS -D_GNU_SOURCE"                                                                           
GCC_NEED_DECLARATION(program_invocation_name, [                           
#include <errno.h>                                                                                       
#include <stdio.h>                                                                                       
#include <stdlib.h>                                                                                      
#include <string.h>                                                                                      
])                                                                                                       
CFLAGS=$saved_CFLAGS                                                                                     
                                                                                                         
dnl Check for Internet sockets.
AC_CHECK_FUNC(socket,
 [AC_CHECK_HEADER(netinet/in.h,
   [AC_CHECK_HEADER(arpa/inet.h, [
  AC_DEFINE(HAVE_SOCKETS)
      AC_MSG_CHECKING("for sun_len member in struct sockaddr_un")
      AC_TRY_LINK([
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
      ],
      [static struct sockaddr_un x; x.sun_len = 1;],
      [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_SOCKADDR_SUN_LEN)],
      [AC_MSG_RESULT(no)])])])])

dnl Checks for library functions.
AC_FUNC_ALLOCA
AC_FUNC_MMAP
AC_TYPE_SIGNAL
AC_FUNC_STRFTIME
AC_CHECK_FUNCS(getcwd gettimeofday getwd putenv strdup strtoul uname)

dnl ## all 'es_??' are only needed for format numbers different of 'es'
ALL_LINGUAS="da de es es_DO es_GT es_HN es_MX es_PA es_PE es_SV fi fr gl ja ko nl no pl pt_BR sv tr"
AM_GNOME_GETTEXT

AC_PATH_XTRA

dnl For Solaris
dnl Please don't move this before AC_PATH_XTRA
AC_CHECK_FUNC(gethostbyname,,[AC_CHECK_LIB(nsl,gethostbyname)])
AC_CHECK_FUNC(connect,,[AC_CHECK_LIB(socket,connect)])
AC_CHECK_FUNC(inet_aton,,[AC_CHECK_LIB(resolv,inet_aton)])

dnl The construct foo=`echo $w1 $w2 $w3` fails on some systems if $w1 = -e or -n
dnl So we use the following instead.
dnl XE_SPACE(var, words)
define([XE_SPACE],[
T=""
for W in $2; do if test -z "$T"; then T="$W"; else T="$T $W"; fi; done
$1="$T"
])dnl

dnl Autodetect Xauth
dnl -lXau is only used by gnuclient, so use a special variable for Xauth X libs
saved_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $X_CFLAGS"
test -z "$with_xauth" && { AC_CHECK_HEADER(X11/Xauth.h,          ,with_xauth=no) }
test -z "$with_xauth" && { AC_CHECK_LIB(Xau, XauGetAuthByAddr,[:],with_xauth=no, $X_LIBS) }
test -z "$with_xauth" && with_xauth=yes
if test "$with_xauth" = "yes"; then
  AC_DEFINE(HAVE_XAUTH)
  XE_SPACE(libs_xauth, $X_LIBS -lXau)
fi
CPPFLAGS="$saved_CPPFLAGS"
AC_SUBST(libs_xauth)

dnl For diskusage stuff
GNOME_FILEUTILS_CHECKS

dnl Debugging
AC_ARG_ENABLE(debug, [  --enable-debug          turn on debugging [default=no]], libgtop_enable_debug=yes, libgtop_enable_debug=no)
AC_ARG_ENABLE(fatal-warnings, [  --enable-fatal-warnings make all warnings fatal [debug=no]],AC_DEFINE(LIBGTOP_FATAL_WARNINGS),)
AC_ARG_ENABLE(glib-malloc, [  --enable-glib-malloc    use glib's malloc [default=auto]], libgtop_enable_glib_malloc=yes,)

if test "x$libgtop_enable_glib_malloc" != xyes ; then
  if test "x$libgtop_enable_debug" = xyes ; then
    libgtop_enable_glib_malloc=yes
  else
    libgtop_enable_glib_malloc=no
  fi
fi

if test "x$libgtop_enable_glib_malloc" = xyes ; then
  AC_DEFINE(LIBGTOP_USE_GLIB_MALLOC)
fi

if test "x$libgtop_enable_debug" = xyes ; then
  AC_DEFINE(LIBGTOP_ENABLE_DEBUG)
fi

if test "x$gnome_found" = xyes ; then
  LIBSUPPORT="$GNOME_LIBDIR -lgnomesupport"
  SUPPORTINCS="$GNOME_INCLUDEDIR"
else
  LIBSUPPORT='$(top_builddir)/support/libgnomesupport.la'
  SUPPORTINCS='-DNEED_GNOMESUPPORT_H -I$(top_builddir)/support -I$(top_srcdir)/support'
fi

dnl Some ugly hack; if '-lgnomesupport' is part of $GNOME_LIBS,
dnl we include it here.
case "$GNOME_LIBS" in
	'*-lgnomesupport*' ) 
	  LIBSUPPORT="$GNOME_LIBDIR -lgnomesupport"
          SUPPORTINCS="$GNOME_INCLUDEDIR" ;;
esac
AC_SUBST(LIBSUPPORT)
AC_SUBST(SUPPORTINCS)

dnl These definitions are expanded in make.
LIBGTOP_LIBS='-L$(libdir)'
LIBGTOP_INCS='-I$(includedir) -I$(pkglibdir)/include'

if test x$libgtop_use_machine_h = xyes ; then
  LIBGTOP_INCS="$LIBGTOP_INCS -DHAVE_GLIBTOP_MACHINE_H"
fi

if test x$build_inodedb = xyes ; then
  LIBGTOP_INCS="$LIBGTOP_INCS -DGLIBTOP_INODEDB"
fi

if test x$libgtop_smp = xyes ; then
  LIBGTOP_INCS="$LIBGTOP_INCS -DHAVE_LIBGTOP_SMP"
fi

if test x$libgtop_have_sysinfo = xyes ; then
  LIBGTOP_INCS="$LIBGTOP_INCS -DHAVE_LIBGTOP_SYSINFO"
fi

LIBGTOP_INCS="$LIBGTOP_INCS $SUPPORTINCS $GLIB_CFLAGS"

LIBGTOP_BINDIR='$(bindir)'
LIBGTOP_SERVER='$(bindir)/libgtop_server'

sysdeps_dir="$libgtop_sysdeps_dir"
AC_SUBST(sysdeps_dir)

if test -z "$LIBGTOP_EXTRA_LIBS" ; then
  LIBGTOP_EXTRA_LIBS="$libs_xauth"
else
  LIBGTOP_EXTRA_LIBS="$LIBGTOP_EXTRA_LIBS $libs_xauth"
fi

LIBGTOP_EXTRA_LIBS="$LIBGTOP_EXTRA_LIBS $GLIB_LIBS"

LIBGTOP_LIBS="$LIBGTOP_LIBS -lgtop_sysdeps -lgtop_common -lgtop -lgtop_backend_server -lgtop_backend_sysdeps"

LIBGTOP_NAMES_LIBS="$LIBGTOP_LIBS -lgtop_names"

LIBGTOP_LIBS="$LIBGTOP_LIBS" 
LIBGTOP_NAMES_LIBS="$LIBGTOP_NAMES_LIBS"

LIBGTOP_NAMES_INCS="$LIBGTOP_INCS -DGLIBTOP_NAMES"

machine_incs="-I\$(top_srcdir)/sysdeps/$sysdeps_dir"

AC_SUBST(machine_incs)

INCLUDES="-D_IN_LIBGTOP -D_GNU_SOURCE -DGLIBTOP_NAMES -I\$(top_builddir) -I\$(top_srcdir) -I\$(top_srcdir)/sysdeps/$sysdeps_dir -I\$(top_srcdir)/include -I\$(top_srcdir)/intl $SUPPORTINCS $GLIB_CFLAGS $CFLAGS $X_CFLAGS "'-DGTOPLOCALEDIR=\"$(datadir)/locale\" -DLIBGTOP_VERSION=\"'"$LIBGTOP_VERSION"'\" -DLIBGTOP_SERVER_VERSION=\"'"$LIBGTOP_SERVER_VERSION"'\" -DLIBGTOP_VERSION_CODE='$LIBGTOP_VERSION_CODE' -DLIBGTOP_SERVER=\"'"$LIBGTOP_SERVER"'\"'

AC_SUBST(INCLUDES)

AC_SUBST(LIBGTOP_EXTRA_LIBS)

AC_SUBST(LIBGTOP_LIBS)
AC_SUBST(LIBGTOP_INCS)
AC_SUBST(LIBGTOP_NAMES_LIBS)
AC_SUBST(LIBGTOP_NAMES_INCS)
AC_SUBST(LIBGTOP_BINDIR)
AC_SUBST(LIBGTOP_SERVER)

if test x$libgtop_need_server = xyes ; then
   sysdeps_suid_lib="\$(top_builddir)/sysdeps/\$(sysdeps_dir)/libgtop_sysdeps_suid.la"
   server_programs='libgtop_server'
else
   sysdeps_suid_lib=
   server_programs=
fi
AC_SUBST(sysdeps_suid_lib)
AC_SUBST(server_programs)


dnl The following one is copied from glib/configure.in

AC_OUTPUT_COMMANDS([

## Generate `glibconfig.h' in two cases
## 1. `config.status' is run either explicitly, or via configure.
##     Esp. not when it is run in `Makefile' to generate makefiles and
##     config.h
## 2. CONFIG_OTHER is set explicitly
##
## Case 1 is difficult.  We know that `automake' sets one of
## CONFIG_FILES or CONFIG_HEADERS to empty.  This heuristic works
## only when AM_CONFIG_HEADER is set, however.

if test -n "${CONFIG_FILES}" && test -n "${CONFIG_HEADERS}"; then
  # Both CONFIG_FILES and CONFIG_HEADERS are non-empty ==> Case 1
  CONFIG_OTHER=${CONFIG_OTHER:-glibtop-config.h}
fi
case "$CONFIG_OTHER" in
*glibtop-config.h*)
	echo creating glibtop-config.h
	outfile=glibtop-config.h-tmp
	cat > $outfile <<\_______EOF
/* glibtop-config.h
 *
 * This is a generated file.  Please modify `configure.in'
 */

#ifndef GLIBTOP_CONFIG_H
#define GLIBTOP_CONFIG_H

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
_______EOF

	did_typedefs=no

	if test x$glibtop_uint64_t != xyes ; then
	  did_typedefs=yes
	  cat >> $outfile <<\_______EOF

#ifndef u_int64_t
typedef unsigned long long int u_int64_t;
#endif
_______EOF
	fi

	if test x$glibtop_int64_t != xyes ; then
	  did_typedefs=yes
	  cat >> $outfile <<\_______EOF

#ifndef int64_t
typedef signed long long int int64_t;
#endif
_______EOF
	fi

	if test x$did_typedefs = xyes ; then
	  cat >>$outfile <<_______EOF

/*
 * NOTE:  If your application checks for "u_int64_t" or "int64_t" in its own
 *        config.h, you must not include it after any of the LibGTop headers.
 */
_______EOF
	fi

	cat >>$outfile <<_______EOF

/* Define if we need the LibGTop server. */
_______EOF

	if test x$glibtop_need_libgtop = xyes ; then
	  echo '#define NEED_LIBGTOP 1' >> $outfile
	else
	  echo '#undef NEED_LIBGTOP' >> $outfile
	fi

	cat >>$outfile <<_______EOF

/* Define if LibGTop has support for multiple processors. */
_______EOF

	if test x$glibtop_have_smp = xyes ; then
	  echo '#define HAVE_LIBGTOP_SMP 1' >> $outfile
	else
	  echo '#undef HAVE_LIBGTOP_SMP' >> $outfile
	fi

	cat >>$outfile <<_______EOF

/* LibGTop major, minor and micro version. */
#define LIBGTOP_MAJOR_VERSION $libgtop_major_version
#define LIBGTOP_MINOR_VERSION $libgtop_minor_version
#define LIBGTOP_MICRO_VERSION $libgtop_micro_version

/* LibGTop version and numerical version code ("1.234.567" -> 1234567). */
#define LIBGTOP_VERSION "$libgtop_version"
#define LIBGTOP_VERSION_CODE $libgtop_version_code

/* LibGTop server version, increased each time the protocol changes. */
#define LIBGTOP_SERVER_VERSION $libgtop_server_version

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* GLIBCONFIG_H */
_______EOF

	if cmp -s $outfile glibtop-config.h; then
	  echo glibtop-config.h is unchanged
	  rm -f $outfile
	else
	  mv $outfile glibtop-config.h
	fi ;;
esac
],[
glibtop_uint64_t=$ac_cv_type_u_int64_t
glibtop_int64_t=$ac_cv_type_int64_t
libgtop_major_version=$LIBGTOP_MAJOR_VERSION
libgtop_minor_version=$LIBGTOP_MINOR_VERSION
libgtop_micro_version=$LIBGTOP_MICRO_VERSION
libgtop_version_code=$LIBGTOP_VERSION_CODE
libgtop_server_version=$LIBGTOP_SERVER_VERSION
libgtop_version=$LIBGTOP_VERSION
glibtop_need_libgtop=$libgtop_need_server
glibtop_have_smp=$libgtop_smp
])


AC_OUTPUT([
Makefile
libgtop.spec
po/Makefile.in
intl/Makefile
misc/Makefile
include/Makefile
include/glibtop/Makefile
sysdeps/Makefile
sysdeps/common/Makefile
sysdeps/names/Makefile
sysdeps/stub/Makefile
sysdeps/stub_suid/Makefile
sysdeps/sun4/Makefile
sysdeps/osf1/Makefile
sysdeps/linux/Makefile
sysdeps/kernel/Makefile
sysdeps/freebsd/Makefile
sysdeps/solaris/Makefile
src/Makefile
src/daemon/Makefile
src/inodedb/Makefile
scripts/Makefile
backends/Makefile
backends/server/Makefile
backends/sysdeps/Makefile
lib/Makefile
doc/Makefile
support/Makefile
macros/Makefile])