root-config (1)

root-config [options]

Put lines like

CFLAGS = $(shell root-config --cflags)
LIBS   = $(shell root-config --libs)
GLIBS  = $(shell root-config --glibs)

%Cint.cxx:Include.h LinkDef.h
        rootcint -f $@ -c $^

in you Makefile.

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 \dIaclocal 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@ \(hyf $*Cint.cxx \(hyc $(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_depenent_source.cc
if GOT_ROOT
LIBFOOXTRA              = root_depenent_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

Auxilary libraries and linker flags for ROOT

ROOTAUXCFLAGS

Auxilary compiler flags

ROOTRPATH

Same as ROOTLIBDIR

--help

Gives a short list of options available, and exit

--version

Report the version number of installed ROOT, and exit.

--prefix=<prefix>

If no arguments is given, reports where ROOT is installed. With an argument of =<prefix>, set the base of the subsequent options to <prefix>. If \--exec-prefix is passedwith an argument, that argument 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 agains the ROOT libraries. No graphics libraries are output.

--glibs

As above, but also output for the graphics libraries.

--cflags

Output a line suitable for compiling a source file againd 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 and --glibs.

root(1), root-cint(1)

See also the ROOT webpages:

http://root.cern.ch

The ROOT team (see web page above):

Rene Brun and Fons Rademakers

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

This manual page was written by Christian Holm Christensen <[email protected]>, for the Debian GNU/Linux system (but may be used by others).