ROOT-CONFIG(1)

NAME
root-config - ROOT utility for your Makefiles

SYNOPSIS
root-config [options]

DESCRIPTION
root-config is a tool that is used to configure and determine the compiler and linker flags that should be used to compile and link programs that use ROOT.
    CPPFLAGS  += $(shell root-config --cflags)
    LDLIBS    += $(shell root-config --libs)
    LDFLAGS   += $(shell root-config --ldflags)
    %Cint.cxx:Include.h LinkDef.h
            rootcint -f $@ -c $^
in your Makefile to use the built-in rules of GNU make. For GUIs, replace --libs by --glibs.

You may also find the automake(1), autoconf(1), and libtool(1) macro file /usr/share/aclocal/root.m4 useful. If that macro file isn't installed where aclocal will find it, copy the contents to your local acinclude.m4 file. In the directories you use ROOT libraries, have in your Makefile.am file:
    lib_LTLIBRARIES         = libFoo.la
    pkginclude_HEADERS      = Foo.h
    noinst_HEADERS          = FooCint.h
    libFoo_la_SOURCES       = Foo.cxx FooCint.cxx
    libFoo_la_LDFLAGS       = -version-info 1:0 -R @ROOTLIBDIR@
    libFoo_la_LDADD         = -lCore -lCint @ROOTAUXLIBS@
    BUILT_SOURCES           = FooCint.cxx FooCint.h
    AM_CPPFLAGS             = -I@ROOTINCDIR@
    AM_LDFLAGS              = -L@ROOTLIBDIR@
    CLEANFILES              = *Cint.cxx *Cint.h *~ core
    %Cint.cxx %Cint.h:Include.h LinkDef.h
            @ROOTCINT@ -f $*Cint.cxx -c $(INCLUDES) $(AM_CPPFLAGS) $^
where you should substitute Foo with whatever, and list the appropriate source files in the _SOURCES variable. In you configure.in file, put:
    AC_PROG_CC
    AC_PROG_CXX
    ROOT_PATH
    AM_PROG_LIBTOOL
along with any other macros you may need.

Note that the ROOT_PATH macro takes three optional arguments: the minimal ROOT version to use, action if ROOT is found, and action if ROOT isn't found. Some examples are
    ROOT_PATH(3.03/05, , AC_MSG_ERROR(Your ROOT version is too old))
    ROOT_PATH(, AC_DEFUN(HAVE_ROOT))
For example, if you want to compile some part of your source tree conditionally on wether ROOT is present or not, you can put in your configure.in file
    ROOT_PATH(,
    [
      AC_DEFUN(HAVE_ROOT)
      have_root=yes
    ])
    AM_CONDITIONAL(GOT_ROOT, test "x$have_root" = "xyes")
And then in some Makefile.am
    EXTRA_SOURCES		= root_dependent_source.cc
    if GOT_ROOT
    LIBFOOXTRA              = root_dependent_source.cc
    else
    LIBFOOXTRA              =
    endif
    lib_LTLIBRARIES         = libFoo.la
    libFoo_la_SOURCES	= Foo.cc  $(LIBFOOXTRA)
The full list of substitution variables are:

ROOTCONF
    full path to root-config

ROOTEXEC
    full path to root

ROOTCINT
    full path to rootcint

ROOTLIBDIR
    Where the ROOT libraries are

ROOTINCDIR
    Where the ROOT headers are

ROOTCFLAGS
    Extra compiler flags

ROOTLIBS
    ROOT basic libraries

ROOTGLIBS
    ROOT basic + GUI libraries

ROOTAUXLIBS
    Auxiliary libraries and linker flags for ROOT

ROOTAUXCFLAGS
    Auxiliary compiler flags

ROOTRPATH
    Same as ROOTLIBDIR

OPTIONS

--help
    Give a short list of options available, and exit

--version
    Report the version number of installed ROOT, and exit.

--prefix=<prefix>
    If no arguments are given, reports where ROOT is installed. With an argument of =<prefix>, set the base of the subsequent options to <prefix>. If \--exec-prefix is passed with an argument, it overrides the argument given to \--prefix for the library path.

--exec-prefix=<prefix>
    If no argument is given, report where the libraries are installed. If an argument is given, use that as the installation base directory for the libraries. This option does not affect the include path.

--libdir
    Print the directory where the ROOT libraries are installed.

--incdir
    Print the directory where the ROOT headers are installed.

--libs
    Output a line suitable for linking a program against the ROOT libraries. No graphics libraries are included.

--glibs
    As above, but also output for the graphics (GUI) libraries.

--evelibs
    As above, but also output for the graphics libraries and Eve libraries.

--cflags
    Output a line suitable for compiling a source file against the ROOT header (class declararion) files.

--new
    Put the libNew.so library in the library lists. This option must be given before options --libs and --glibs.

--nonew
    Compatiblity option, does nothing.

--auxlibs
    Print auxiliary libraries and/or system linker flags.

--noauxlibs
    Do not print auxiliary libraries and/or system linker flags in the output of --libs and --glibs. --auxcflags Print auxiliary compiler flags.

--noauxcflags
    Do not print auxiliary compiler flags in the output of --cflags.

--noldflags
    Do not print library path link option in output of --libs, --evelibs and --glibs.

--ldflags
    Print additional linker flags (eg. -m64)

--arch
    Print the architecture (compiler/OS)

--platform
    Print the platform (OS)

--bindir
    Print the binary directory of the root installation (location of the root executable)

--etcdir
    Print the configuration directory (place of system.rootrc, mime type, valgrind suppression files and .desktop files)

--config
    Print arguments used for ./configure as used when building root. These cannot be used for ./configure if root was built with CMake.

--git-revision
    Print the ROOT git revision number from which root was built.

--has-<feature>
    Test if <feature> has been enabled in the build process.

--features
    Print list of all supported features

--ncpu
    Print number of available (hyperthreaded) cores

--python-version
    Print the Python version used by ROOT

--cc
    Print alternative C compiler specified when ROOT was built

--cxx
    Print alternative C++ compiler specified when ROOT was built

--f77
    Print alternative Fortran compiler specified when ROOT was built

--ld
    Print alternative Linker specified when ROOT was built

SEE ALSO
root(1), root-cint(1)

See also the ROOT webpages: http://root.cern.ch (http://root.cern.ch)

ORIGINAL AUTHORS
The ROOT team (see web page above):
    Rene Brun and Fons Rademakers

COPYRIGHT
This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

AUTHOR
This manual page was written by Christian Holm Christensen <cholm@nbi.dk>, for the Debian GNU/Linux system (but may be used by others).