configure

#! /bin/sh
#
# A (not so) simple configure script.
#
# Authors: Christian Holm Christensen and Fons Rademakers
#
# To help with debugging the script, some comments are preprended with
# 3 '#' echo and 3 '%' - replace that pattern with echo and 3 '%' to
# get printouts.  When done replace the pattern echo and 3 '%' with the
# original pattern of 3 '#' echo and 3 '%'.  Emacs command M-C-% does
# this easily.
#
######################################################################
#
### echo %%% Some global variables
#
found_lib=no
found_dir=no
found_hdr=no
show_pkglist=no
noact="no"
nohowto="no"
logfile=config.log

options="                    \
   enable_afs                \
   enable_alien              \
   enable_asimage            \
   enable_astiff             \
   enable_builtin_afterimage \
   enable_builtin_freetype   \
   enable_builtin_pcre       \
   enable_builtin_gsl        \
   enable_builtin_zlib       \
   enable_cern               \
   enable_chirp              \
   enable_cintex             \
   enable_clarens            \
   enable_dcache             \
   enable_exceptions         \
   enable_explicitlink       \
   enable_fftw3              \
   enable_gfal               \
   enable_globus             \
   enable_krb5               \
   enable_ldap               \
   enable_mathcore           \
   enable_mathmore           \
   enable_monalisa           \
   enable_mysql              \
   enable_odbc               \
   enable_opengl             \
   enable_oracle             \
   enable_pch                \
   enable_peac               \
   enable_pgsql              \
   enable_pythia             \
   enable_pythia6            \
   enable_python             \
   enable_qt                 \
   enable_qtgsi              \
   enable_reflex             \
   enable_roofit             \
   enable_minuit2            \
   enable_ruby               \
   enable_rfio               \
   enable_rpath              \
   enable_sapdb              \
   enable_shadowpw           \
   enable_shared             \
   enable_soversion          \
   enable_srp                \
   enable_ssl                \
   enable_table              \
   enable_thread             \
   enable_venus              \
   enable_winrtdebug         \
   enable_xml                \
   enable_xrootd             \
"

#
# This sets all options to "yes" - we turn off those we don't want
# on per default explictly afterwards.
#
for c in $options ; do eval $c="yes" ; done

enable_afs=no
enable_explicitlink=no
enable_cintex=no
enable_mathcore=no
enable_mathmore=no
enable_pythia=no
enable_qt=no
enable_qtgsi=no
enable_reflex=no
enable_roofit=no
enable_minuit2=no
enable_rpath=no
enable_ruby=no
enable_shadowpw=
enable_soversion=no
enable_table=no
enable_thread=           # must be set explicitely via --enable-thread
enable_winrtdebug=
enable_xrootd=           # must be set explicitely via --enable-xrootd

# Remove old log file
rm -f $logfile

#
# ./configure arguments and defaults set via supported env vars
#
envvars="
THREAD           \
OPENGL           \
MATHCORE         \
MATHMORE         \
MYSQL            \
ORACLE           \
PGSQL            \
QTDIR            \
SAPDB            \
RFIO             \
GFAL             \
CERNLIB          \
PYTHIA           \
PYTHIA6          \
FFTW3            \
PYTHONDIR        \
VENUS            \
DCACHE           \
CHIRP            \
ALIEN            \
ASIMAGE          \
LDAP             \
GLOBUS_LOCATION  \
MONALISA         \
SRP              \
SSL              \
AFS              \
CINTEX           \
REFLEX           \
ROOFIT           \
MINUIT2          \
TABLE            \
XMLDIR           \
ROOTDICTTYPE     \
"
configenvvars=
for c in $envvars ; do
   cc=`eval echo "$"$c | sed 's,\\\,\\\\\\\,g'`
   if test ! "x$cc" = "x" ; then
      if test ! "x$configenvvars" = "x" ; then
         configenvvars="$configenvvars $c=$cc"
      else
         configenvvars="$c=$cc"
      fi
   fi
done

configargs="$*"
# don't write --nohowto to config.h
configargs=`echo $configargs | sed 's, *--nohowto,,g'`

configoptions=
if test ! "x$configenvvars" = "x" ; then
   configoptions=$configenvvars
fi
if test ! "x$configargs" = "x" ; then
   if test ! "x$configoptions" = "x" ; then
      configoptions="$configoptions $configargs"
   else
      configoptions=$configargs
   fi
fi
configoptions=`echo $configoptions | sed 's,\\\,\\\\\\\,g'`

######################################################################
#
### echo %%% Some common functions
#
#_____________________________________________________________________
message() {
    # Write a simple message to std out
    if test $# -lt 1 ; then
	echo "message: Too few arguments"
	return 1
    fi
    echo $ac_n "$* ... $ac_c"
    logmsg "$*"
}

#_____________________________________________________________________
logmsg() {
    # Write a simple message to std out
    if test $# -lt 1 ; then
	echo "logmsg: Too few arguments"
	return 1
    fi
    if test "x$1" = "x-n"; then
       shift
       echo -n "$*" >> $logfile
    else
       echo "$*" >> $logfile
    fi
}

#_____________________________________________________________________
result() {
    echo "$*"
    logmsg "Result: $*"
}

#_____________________________________________________________________
checking_msg() {
    # Write a simple "checking" message to std out.
    if test $# -lt 1 ; then
	echo "checking_msg: Too few arguments"
	return 1
    fi
    echo $ac_n "Checking for$ac_c"
    logmsg $ac_n "Checking for$ac_c"
    while test $# -gt 1 ; do
	echo $ac_n " $1,$ac_c"
	logmsg $ac_n " $1,$ac_c"
	shift
	if test $# -eq 1 ; then
	    echo $ac_n " or$ac_c"
	    logmsg $ac_n " or$ac_c"
	fi
    done
    echo $ac_n " $1 ... $ac_c"
    logmsg " $1 ... "
}

#_____________________________________________________________________
check_lib64() {
    # This function will try to find out if a library [$1] contains 64 bit
    # or 32 bit code. Currently works only for linux.
    # The result of the check is stored in is_lib64, 1 if true,
    # 0 otherwise, which should be immediately copied, since the variable
    # will be overwritten at next invocation of this function.

    is_lib64=0

    # Assert that we got enough arguments
    if test $# -ne 1 ; then
	echo "check_lib64: not 1 argument"
	return 1
    fi

    # Save arguments in logical names
    chklib64=$1
    logmsg "Checking if $chklib64 is a 64bit library"
    if [ "x`basename $chklib64 .a`" != "x`basename $chklib64`" ]; then
        # we have an archive .a file
	logmsg "objdump -a $chklib64 | grep 'x86-64'"
        objdump -a $chklib64 | grep 'x86-64' > /dev/null 2>& 1
	ret=$?
    else
	logmsg "file -L $chklib64 | grep '64-bit'"
        file -L $chklib64 | grep '64-bit' > /dev/null 2>& 1
	ret=$?
    fi
    logmsg "result: $ret"
    if test $? -eq 0 ; then
        is_lib64=1
	logmsg "is a 64bit library"
    fi
}

#_____________________________________________________________________
check_library() {
    # This function will try to locate a library [$1] in the specific
    # directory [$3] or in a default path [$*].  If the second argument
    # [$2] is not "no", then shared libraries are favoured.
    # The result of the search is stored in found_lib and found_dir,
    # which should be immediately copied, since the variables value will
    # be overwritten at next invocation of this function.

    # Assert that we got enough arguments
    if test $# -lt 4 ; then
	echo "check_library: Too few arguments"
	return 1
    fi

    # Save arguments in local names
    lib=$1       ; shift
    shared=$1    ; shift
    libdirl=$1   ; shift
    libdirs="$*"

    # Write a message
    checking_msg $lib

    # check if we got a specific argument as to where the library
    # is to be found
    if test ! "x$libdirl" = "x" ; then
        libdirs=$libdirl
    fi
    found_lib=no
    found_dir=no

    # Make list of libraries to search for. The .lib extension is for
    # Windoze - note $shared is always "no" on windoze, since we need
    # the .lib export library to link.
    libs=""
    for i in $lib ; do
	for ext in .a .lib "" ; do     # lib without extension for MacOS X
	    libs="$libs $i$ext"
	done
    done
    slibs=""
    for i in $lib ; do
        for ext in .so .sl .dylib .dll.a ; do      # .dll.a for cygwin gcc
            slibs="$slibs $i$ext"
        done
    done
    if test ! "x$shared" = "xno" ; then
	libs="$slibs $libs"
    else
        libs="$libs $slibs"
    fi

    logmsg "libraries to check for: $libs"
    # Loop over the list of possible directories, and see if we can
    # find any of the library files as determind above.
    for i in $libdirs ; do
        # look first in the lib32 directories
        if test "x$checklib32" = "xyes" ; then
            i32=`echo $i | sed -e 's|lib$|lib32|' -e 's|lib/|lib32/|'`
            #i="$i32 $i"
            i="$i32"
        fi
        # look first in the lib64 directories
        if test "x$checklib64" = "xyes" ; then
            i64=`echo $i | sed -e 's|lib$|lib64|' -e 's|lib/|lib64/|'`
            i="$i64 $i"
        fi
        # look only in the lib64 directories
        if test "x$checkonlylib64" = "xyes" ; then
            i64=`echo $i | sed -e 's|lib$|lib64|' -e 's|lib/|lib64/|'`
            i="$i64"
        fi
        # look only in the hpux64 directories
        if test "x$checkhpux64" = "xyes" ; then
            i64=`echo $i | sed 's|\(lib\)|\1/hpux64|'`
            i="$i64"
        fi
	logmsg "Checking in directories $i for $libs"
        for l in $i ; do
            l=`echo $l | sed 's,^//,/,'`
            if test ! -d $l ; then
		continue
            fi
            for j in ${libs} ; do
		logmsg "Checking for library $j in directory $i"
	        # if we found the file (it's readable by user), we set the
	        # logical variables and are on our way, otherwise we continue
                liblist=`echo $l/$j`    # expands wildcard in $l/$j
                for n in ${liblist} ; do
		    logmsg "Checking $n"
                    if test -f $n ; then
			logmsg "Found file $n"
                        if test "x$checklib64" = "xyes" ; then
                            check_lib64 $n
                            if test $is_lib64 -eq 1 ; then
                                found_dir=$l
                                found_lib=$j
                                break 4
                            fi
                        else
                            found_dir=$l
                            found_lib=$j
                            # skip cygwin libraries when in pure Win32 mode
                            if test "x$platform" = "xwin32"; then
                                case $found_dir in
                                    /lib|/lib/*|/usr/*) found_dir="no" ;;
                                    *) break 4;;
                                esac
                            else
                              break 4
                            fi
                        fi
		    else
			logmsg "$j not found in $j"
                    fi
                done
            done
        done
    done

    echo $found_dir
    unset libs
    unset libdirs

    if test "x$found_dir" = "xno" || test "x$found_lib" = "xno" ; then
	found_dir=""
	found_lib=""
	logmsg "library not found"
    else
	flib=""
        maclib=""
	for i in $lib ; do
	    for ext in .a .lib "" ; do     # lib without extension for MacOS X
		if test "x$found_lib" = "x$i$ext" ; then
		    flib=$i$ext
                    if test "x$ext" = "x" ; then
                        maclib="yes"
                    fi
                    break 2
		fi
	    done
	done

	if (test "x$found_lib" = "x$flib" && test "x$shared" = "xno") || \
           test "x$maclib" = "xyes" ; then
	    found_lib=${found_dir}/${found_lib}
	    found_dir=""
	else
	    found_lib=`echo $found_lib | sed 's|^lib\(.*\)\..*|-l\1|'`
	    found_dir=-L${found_dir}
            # Avoid inclusion of /usr/lib, which is always included anyway
            if test "x$found_dir" = "x-L/usr/lib"   || \
               test "x$found_dir" = "x-L/usr/lib32" || \
               test "x$found_dir" = "x-L/usr/lib64" ; then
		found_dir=""
	    fi
	fi

        # Correct path for win32
        if test "x$platform" = "xwin32"; then
            if test ! "x$found_lib" = "x" ; then
                found_lib=`cygpath -m $found_lib`
            fi
            if test ! "x$found_dir" = "x" ; then
               found_dir=`cygpath -m $found_dir`
            fi
        fi
    fi
    unset shared
    unset slibs
    unset lib
    unset flib
    unset maclib
    unset libdirl
}

#_____________________________________________________________________
check_header()  {
    # This function will try to locate a header [$1] in the specific
    # directory [$2] or in a default path [$*].
    # The result of the search is stored in found_hdr and found_dir,
    # which should be immediately copied, since the variables value will
    # be overwritten at next invocation of this function.

    # Assert that we got enough arguments
    if test $# -lt 3 ; then
	echo "check_header: Too few arguments"
	return 1
    fi

    # Save arguments in logical names
    hdrs=$1     ; shift
    hdrdir=$1   ; shift
    hdrdirs="$*"

    # Write a message
    checking_msg $hdrs

    # Check if we got a specific argument as to where the library
    # is to be found
    if test ! "x$hdrdir" = "x" ; then
        hdrdirs=$hdrdir
    fi
    found_hdr=no
    found_dir=no

    # Loop over the list of possible directories, and see if we can
    # find any of the library files as determind above.

    for i in $hdrdirs; do
	logmsg "Checking in directory $i"
        for j in ${hdrs} ; do
	    logmsg "Checking for $j in directory $i"
	    # if we found the file (it's readable by user), we set the
	    # logical variables and are on our way, otherwise we continue
            if test -r $i/$j ; then
		logmsg "$i/$j is read-able"
                found_dir=$i
                found_hdr=$j
                # skip cygwin headers when in pure Win32 mode
                if test "x$platform" = "xwin32"; then
                    case $found_dir in
                        /usr/*) found_dir="no" ;;
                        *) break 2;;
                    esac
                else
                    break 2
                fi
            fi
        done
    done

    echo $found_dir

    if test "x$found_hdr" = "xno" || test "x$found_dir" = "xno" ; then
	found_hdr=""
	found_dir=""
    fi

    # Avoid inclusion of /usr/include, which is always included anyway
    #if test "x$found_dir" = "x/usr/include" ; then
	# found_dir="include"
    #fi

    # Correct path for win32
    if test "x$platform" = "xwin32"; then
        if test ! "x$found_hdr" = "x" ; then
           found_hdr=`cygpath -m $found_hdr`
        fi
        if test ! "x$found_dir" = "x" ; then
           found_dir=`cygpath -m $found_dir`
        fi
    fi

    unset hdrs
    unset hdrdirs
    unset hdrdir
}

#_____________________________________________________________________
check_symbol() {
    # This function will try to locate a symbol [$1] in a specific
    # library [$2] and in a given directory [$3].
    # The result of the check is stored in found_symbol, 1 if true,
    # 0 otherwise, which should be immediately copied, since the variable
    # will be overwritten at next invocation of this function.

    # Assert that we got enough arguments
    if test $# -ne 3 ; then
	echo "check_symbol: not 3 arguments"
        found_symbol=0
	return 1
    fi

    # Save arguments in logical names
    symbol=$1     ; shift
    symbollib=$1  ; shift
    symboldir=$1

    if test "x$symbollib" = "x" ; then
        found_symbol=0
        return 1
    fi

    symbollib=`echo $symbollib | sed -e 's/^-l/lib/'`

    if test ! "x$symboldir" = "x" ; then
        symboldir=`echo $symboldir | sed -e 's/^-L//'`
    fi

    # Check if we got a specific argument as to where the library
    # is to be found
    symbolfile=$symbollib
    exts=".so .lib"
    if test ! "x$shared" = "xno" ; then
	exts="$exts .a"
    else
	exts=".a $exts"
    fi

    usrlib="/usr/lib"
    # look first in the lib32 directories
    if test "x$checklib32" = "xyes" ; then
        usrlib="/usr/lib32 $usrlib"
    fi
    # look first in the lib64 directories
    if test "x$checklib64" = "xyes" ; then
        usrlib="/usr/lib64 $usrlib"
    fi
    # look only in the lib64 directories
    if test "x$checkonlylib64" = "xyes" ; then
        usrlib="/usr/lib64"
    fi
    # look only in the hpux64 directories
    if test "x$checkhpux64" = "xyes" ; then
        usrlib="/usr/lib/hpux64"
    fi

    for d in "$symboldir" $usrlib ; do
	logmsg "Checking in $d"
	if test ! -r $d/$symbollib ; then
	    logmsg "$d/$symbollib not readable"
	    for i in $exts ; do
		logmsg "Checking extension $i with $d/$symbollib"
		if test -r $d/$symbollib$i ; then
		    logmsg "$d/$symbollib$i readable"
		    symbolfile=$d/$symbollib$i
		    break 2
                fi
             done
        fi
    done

    if test "x$symbolfile" = "x" || test ! -r $symbolfile ; then
       found_symbol=0
       logmsg "Symbol not found"
       return 1
    fi

    checking_msg "$symbol in $symbolfile"
    nm $symbolfile 2>&1 | grep $symbol > /dev/null 2>&1
    if test $? -eq 0 ; then
        found_symbol=1
        logmsg "Symbol found"
    else
	nm $symbolfile 2>&1 | grep "no symbols" > /dev/null 2>&1
	if test $? -eq 0 ; then
	    logmsg "$symbolfile is stripped, trying a link"
	    # stripped library - only safe test is to link against the
	    # library!  However, we do not know what compiler to use
	    # so we can not do the test.  Assume the symbol is in
	    cat <<EOF > conftest.mk
include config/Makefile.${arch}
conftest:conftest.c $symbolfile
	\$(CC) \$(CFLAGS) \$(LDFLAGS) $symbolfile \$< -o \$@

conftest.c:
	echo "extern int $symbol (); " > \$@
	echo "int main() { $symbol (); return 0; }" >> \$@
EOF
	    $gnumake -f conftest.mk >> $logfile 2>&1
	    if test $? -eq 0 ; then
		found_symbol=1
		logmsg "Link OK"
	    else
		found_symbol=0
		logmsg "Failed code was"
		cat conftest.mk >> $logfile
	    fi
	    rm -rf conftest.c conftest.mk conftest
	else
	    found_symbol=0
	fi
    fi
    if test $found_symbol -eq 1 ; then
	result "ok"
    else
	result "no"
    fi
}

#_____________________________________________________________________
guess_architecture () {
    # Try to guess the architecture of the host system
    # Note, that there's no attempt at guessing the compiler.
    # The `native' compiler is used in all cases.
    # If a user really want a specifific compiler, s/he better use the
    # first argument to do so.
    arch=`uname -s | tr '[A-Z]' '[a-z]'`
    chip=`uname -m | tr '[A-Z]' '[a-z]'`
    rele=`uname -r`
    logmsg "arch=$arch"
    logmsg "chip=$chip"
    logmsg "rele=$rele"
    case "$arch:$chip:$rele" in
        aix*)                  arch=aix5            ;;
        osf1*:alpha:*)         arch=alphacxx6       ;;
        freebsd*:*:6*)         arch=freebsd5        ;;
        freebsd*:*:5*)         arch=freebsd5        ;;
        freebsd*:*:4*)         arch=freebsd4        ;;
        freebsd*:*:*)          arch=freebsd         ;;
        hp-ux:ia64:*)          arch=hpuxia64acc     ;;
        hp-ux:*:*)             arch=hpuxacc         ;;
        hurd*:*:*)             arch=hurddeb         ;;
        linux:ia64:*)          arch=linuxia64gcc    ;;
        linux:x86_64:*)        arch=linuxx8664gcc   ;;
        linux:alpha:*)         arch=linuxalphagcc   ;;
        linux:arm*:*)          arch=linuxarm        ;;
        linux:ppc64*:*)        arch=linuxppc64gcc   ;;
        linux:ppc*:*)          arch=linuxppcgcc     ;;
        linux:i*86:*)          arch=linux           ;;
        openbsd*:*:*)          arch=openbsd         ;;
        lynx:*:*)              arch=lynxos          ;;
        darwin:power*:*)       arch=macosx          ;;
        darwin:*86*:*)         arch=macosx          ;;
        irix*:sgi*:*)          arch=sgicc           ;;
        sunos:sun*:6*)         arch=solarisCC5      ;;
        sunos:sun*:5*)         arch=solarisCC5      ;;
        sunos:sun*:4*)         arch=solaris         ;;
        cygwin_*:*86:*)        arch=win32           ;;
        cygwin_*:pentium:*)    arch=win32           ;;
        cygwin_*:ia64)         arch=win32           ;;
        *)
            echo "Attempts at guessing your architecture failed."
            echo "Please specify the architecture as the first argument."
            echo "Do '$0 --help' for a list of avaliable architectures."
            exit 1
            ;;
    esac
    logmsg "$arch"
}

###################################################################
#
### echo %%% Some skeleton and config files
#
ARCHS=config/ARCHS
MAKEIN=config/Makefile.in
MAKEOUT=config/Makefile.config
CONFIN=config/config.in
CONFOUT=include/config.h
RCONFIN=config/root-config.in
RCONFOUT=bin/root-config
ROOTRCIN=config/rootrc.in
ROOTRCOUT=etc/system.rootrc
ROOTAUTHRCIN=config/rootauthrc.in
ROOTAUTHRCOUT=etc/system.rootauthrc
ROOTDAEMONRCIN=config/rootdaemonrc.in
ROOTDAEMONRCOUT=etc/system.rootdaemonrc
MEMPROBEIN=config/memprobe.in
MEMPROBEOUT=bin/memprobe
MIMEUNIXIN=config/mimes.unix.in
MIMEWIN32IN=config/mimes.win32.in
MIMEOUT=etc/root.mimes
ROOTDIN=config/rootd.in
ROOTDOUT=etc/daemons/rootd.rc.d
ROOTDXINETDIN=config/rootd.xinetd.in
ROOTDXINETDOUT=etc/daemons/rootd.xinetd
PROOFDIN=config/proofd.in
PROOFDOUT=etc/daemons/proofd.rc.d
PROOFDXINETDIN=config/proofd.xinetd.in
PROOFDXINETDOUT=etc/daemons/proofd.xinetd
ROOTHELPIN=config/root-help.el.in
ROOTHELPOUT=build/misc/root-help.el
HTMLIN=config/html.C.in
HTMLOUT=macros/html.C

######################################################################
#
### echo %%% Testing the echo features
#
if  `(echo "testing\c"; echo 1,2,3) | grep c > /dev/null` ; then
  if `(echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn > /dev/null`; then
    ac_n= ac_c='
' ac_t='	'
  else
    ac_n=-n ac_c= ac_t=
  fi
else
  ac_n= ac_c='\c' ac_t=
fi


######################################################################
#
### echo %%% Help function
#
confhelp() {
vers=`cat build/version_number`
cat <<EOF
\`configure' configures ROOT $vers to adapt to many kind of systems.

Usage:     $0 [architecture] [flag=value]

The architecture to build for will be guessed from the output of 'uname'.
If, however, that fails, or you don't want the 'native' compiler on the
host platform, you can specify the architecture to use by passing as the
FIRST argument one of the architecures given at the end of this message.

   FLAG            DESCRIPTION               DEFAULT
   --aclocaldir    Autoconf macro install dir(<prefix>/share/aclocal)
   --bindir        Binary installation dir   (<prefix>/bin)
   --build         Build configuration [debug, exceptions, ...],
                   overrides the ROOTBUILD shell variable
   --cintincdir    CINT interpeted headers   (<libdir>/cint)
   --datadir       Data installation dir     (<prefix>/share/root)
   --docdir        Documentation             (<prefix>/share/doc/root)
   --elispdir      Where to put Emacs Lisp   (<prefix>/share/emacs/site-lisp)
   --etcdir        Config installation dir   (/etc/root)
   --fontdir       Font installation dir     (<datadir>/fonts)
   --iconpath      Icon installation dir     (<datadir>/icons)
   --incdir        Header installation dir   (<prefix>/include/root)
   --libdir        Library installation dir  (<prefix>/lib/root)
   --macrodir      Macro installation dir    (<datadir>/macros)
   --mandir        Manpages installation dir (<prefix>/share/man/man1)
   --no-create     Do not create output files, dry run
   --prefix        Installation prefix       (/usr/local)
   --srcdir        Sources installation dir  (<datadir>/src)
   --testdir       Tests                     (<docdir>/test)
   --tutdir        Tutorials                 (<docdir>/tutorial)

If any of the flags --cintincdir, --datadir, --docdir, --etcdir, --iconpath
--incdir, --libdir, --macrodir, --mandir, or --prefix is given,
ROOT will be compiled with static directory names, and you should not set
the ROOTSYS environment variable.

enable/disable options, prefix with either --enable- or --disable-
  afs                AFS support, requires AFS libs and objects
  alien              AliEn support, requires libgapiUI from ALICE
  asimage            Image processing support, requires libAfterImage
  astiff             Include tiff support in image processing
  builtin-afterimage Built included libAfterImage, or use system libAfterImage
  builtin-freetype   Built included libfreetype, or use system libfreetype
  builtin-pcre       Built included libpcre, or use system libpcre
  builtin-gsl        Built included libgsl, or use system libgsl
  builtin-zlib       Built included libz, or use system libz
  cern               CERNLIB usage, build h2root and g2root
  chirp              Chirp support (Condor remote I/O), requires libchirp_client
  cintex             Build the libCintex Reflex interface library
  clarens            Clarens RPC support, optionally used by PROOF
  dcache             dCache support, requires libdcap from DESY
  exceptions         Turn on compiler exception handling capability
  explicitlink       Explicitly link with all dependent libraries
  fftw3              Fast Fourier Transform support, requires libfftw3
  gfal               GFAL support, requires libgfal
  globus             Globus authentication support, requires Globus toolkit
  krb5               Kerberos5 support, requires Kerberos libs
  ldap               LDAP support, requires (Open)LDAP libs
  mathcore           Build the new libMathCore math library
  mathmore           Build the new libMathMore extended math library
  minuit2            Build the new libMinuit2 minimizer library
  monalisa           Monalisa monitoring support, requires libapmoncpp
  mysql              MySQL support, requires libmysqlclient
  odbc               ODBC support, requires libiodbc or libodbc
  opengl             OpenGL support, requires libGL and libGLU
  oracle             Oracle support, requires libocci
  pch                Precompiled headers (if supported by the compiler)
  peac               PEAC, PROOF Enabled Analysis Center, requires Clarens
  pgsql              PostgreSQL support, requires libpq
  pythia             Pythia5 EG support, requires libPythia
  pythia6            Pythia6 EG support, requires libPythia6
  python             Python ROOT bindings, requires python >= 2.1
  qt                 Qt graphics backend, requires libqt >= 3
  qtgsi              GSI's Qt integration, requires libqt >= 3
  reflex             Build the libReflex dictionary library
  rfio               CASTOR support, requires libshift from CASTOR >= 1.5.2
  roofit             Build the libRooFit advanced fitting package
  rpath              Set run-time library load path on executables
  ruby               Ruby ROOT bindings, requires ruby >= 1.8
  sapdb              MaxDB/SapDB support, requires libsqlod and libsqlrte
  shadowpw           Shadow password support
  shared             Use shared 3rd party libraries if possible
  soversion          Set version number in sonames (recommended)
  srp                SRP support, requires SRP source tree
  ssl                SSL encryption support, requires openssl
  table              Build libTable contrib library
  thread             Thread support
  venus              Venus EG support, requires libVenus
  winrtdebug         Link against the Windows debug runtime library
  xml                XML parser interface
  xrootd             Build xrootd file server and its client (if supported)

with options, prefix with --with-, enables corresponding support

  afs                AFS support, location of AFS distribution
  alien-incdir       AliEn support, location of gapiUI.h
  alien-libdir       AliEn support, location of libapiUI
  cern-libdir        HBOOK converter, location of CERNLIB libraries
  chirp-incdir       Chirp support, location of chirp_client.h
  chirp-libdir       Chirp support, location of libchirp_client
  cppunit            Cppunit testing, directory of the cppunit installation
  dcap-incdir        dCache support, location of dcap.h
  dcap-libdir        dCache support, location of libdcap
  dicttype           dictionary type: "cint" (default), "reflex", or "gccxml"
  fftw3-incdir       FFTW3 support, location of fftw3.h
  fftw3-libdir       FFTW3 support, location of libfftw3 (libfftw3-3 for windows)
  gfal-incdir        GFAL support, location of gfal_api.h
  gfal-libdir        GFAL support, location of libgfal
  gccxml             Gccxml support, directory of the gccxml installation
  globus             Globus support, path to what should be GLOBUS_LOCATION
  krb5               Kerberos5 support, location of Kerberos distribution
  krb5-incdir        Kerberos5 support, location of krb5.h
  krb5-libdir        Kerberos5 support, location of libkrb5
  ldap-incdir        LDAP support, location of ldap.h
  ldap-libdir        LDAP support, location of libldap
  monalisa-incdir    Monalisa support, location of ApMon.h
  monalisa-libdir    Monalisa support, location of libapmoncpp
  mysql-incdir       MySQL support, location of mysql.h
  mysql-libdir       MySQL support, location of libmysqlclient
  odbc-incdir        ODBC support, location of sqlext.h
  odbc-libdir        ODBC support, location of libiodbc or libodbc
  opengl-incdir      OpenGL support, location of GL/gl.h
  opengl-libdir      OpenGL support, location of libGL
  oracle-incdir      Oracle support, location of occi.h
  oracle-libdir      Oracle support, location of libocci
  pgsql-incdir       PostgreSQL support, location of libpq-fe.h
  pgsql-libdir       PostgreSQL support, location of libpq
  pythia-libdir      PYHTIA support, location of libPythia
  pythia6-libdir     PYHTIA6 support, location of libPythia6
  python-incdir      Python support, location of Python.h
  python-libdir      Python support, location of libpython
  qt-incdir          Qt support, location of qt.h
  qt-libdir          Qt support, location of libqt-mt or libqt
  ruby-incdir        Ruby support, location of ruby.h
  ruby-libdir        Ruby support, location of libruby
  sapdb-incdir       SapDB support, location of sql.h
  sapdb-libdir       SapDB support, location of libsqlod
  shift-incdir       CASTOR support, location of stager_api.h
  shift-libdir       CASTOR support, location of libshift
  srp                Secure Remote Passwd support, location of SRP distribution
  srp-incdir         SRP support, location header of t_server.h
  srp-libdir         SRP support, location header of libsrp.a
  ssl-incdir         OpenSSL support, location of openssl headers
  ssl-libdir         OpenSSL support, location of libssl
  sys-iconpath       Extra icon path
  thread-libdir      Thread support, path to libpthread
  venus-libdir       VENUS support, location of libVenus
  xml-incdir         XML support, location of libxml/tree.h
  xml-libdir         XML support, location of libxml2
  x11-libdir         X11 support, path to libX11
  xpm-libdir         XPM support, path to libXpm
  xrootd             XROOTD support, path to alternative XROOTD distribution

Supported Architectures:

EOF
   cat config/ARCHS | sed -e 's/^/   /'
cat <<EOF

Help output is rather long, so you may want to pipe it through a pager, like
for example

  $0 --help | more

Report bugs to <rootdev@root.cern.ch>
EOF
}

######################################################################
#
### echo %%% See if we got the architecture
#
if test $# -lt 1 ; then
   guess_architecture
else
   case $1 in
      -h|--help) confhelp ; exit 0 ;;
      -*) # in case the first argument wasn't an architecure but an option
          guess_architecture
          ;;
       *)
          arch=$1
	  logmsg "Architecture set to $arch by user"
          shift
          ;;
   esac
fi

# check that we got a valid architecture
if test "$arch" = "linuxegcs" ; then
    arch="linux"
fi
if test "$arch" = "win32gdk" ; then
    arch="win32"
fi

if `awk '{ print $1 }' $ARCHS | grep "^$arch$" > /dev/null  2>&1` ; then
   echo "Configuring for $arch"
else
   echo "Invalid architecture. Try $0 --help"
   exit 1
fi

platform=`grep "^PLATFORM *=" config/Makefile.$arch | awk '{ print $3 }'`

case $arch in
sgicc)
   logmsg "Will check 32bit libraries"
   checklib32="yes" ;;
linuxppc64*|sgicc64)
   logmsg "Will ONLY check 64bit libraries"
   checkonlylib64="yes" ;;
linuxx8664*)
   logmsg "Will check 64bit libraries"
   checklib64="yes" ;;
hpuxia64acc)
   logmsg "Will HP/UX 64bit libraries"
   checkhpux64="yes" ;;
esac

case $platform in
win32|linux|macosx)
   gnumake="make" ;;
*)
   gnumake="gmake" ;;
esac

if test "x$platform" = "xmacosx" ; then
   logmsg "Checking Fink directory"
   finkdir=`which fink 2>&1 | sed -ne "s/\/bin\/fink//p"`
   logmsg "$finkdir"
fi

######################################################################
#
### echo %%% Some clean up
#