root-config (1) - Linux Manuals

root-config: ROOT utility for your Makefiles

Command to display root-config manual in Linux: $ man 1 root-config

NAME

root-config - ROOT utility for your Makefiles

SYNOPSIS

root-config [options]

DESCRIPTION

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 Iaclocal 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 [at] ROOTINCDIR@
AM_LDFLAGS              = -L [at] 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_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

OPTIONS

--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.

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 [at] nbi.dk>, for the Debian GNU/Linux system (but may be used by others).