g++ -Wall -c -o Precision_DiffFinie.o -I`~/root-6.12.04/builddir/bin/root-config --incdir`  Precision_DiffFinie.cpp
 In file included from /home/benjamin/root-6.12.04/builddir/include/RtypesCore.h:23:0,
             from /home/benjamin/root-6.12.04/builddir/include/Rtypes.h:23,
             from /home/benjamin/root-6.12.04/builddir/include/TObject.h:17,
             from /home/benjamin/root-6.12.04/builddir/include/TNamed.h:25,
             from /home/benjamin/root-6.12.04/builddir/include/TGraph.h:24,
             from Precision_DiffFinie.cpp:15:
/home/benjamin/root-6.12.04/builddir/include/RConfig.h:47:4: error: #error "ROOT requires support for C++11 or higher."
 #  error "ROOT requires support for C++11 or higher."
^
 /home/benjamin/root-6.12.04/builddir/include/RConfig.h:49:5: error:  #error "Pass `-std=c++11` as compiler argument."
 #error "Pass `-std=c++11` as compiler argument."
 ^
In file included from /usr/include/c++/5/atomic:38:0,
             from /home/benjamin/root-6.12.04/builddir/include/Rtypes.h:29,
             from /home/benjamin/root-6.12.04/builddir/include/TObject.h:17,
             from /home/benjamin/root-6.12.04/builddir/include/TNamed.h:25,
             from /home/benjamin/root-6.12.04/builddir/include/TGraph.h:24,
             from Precision_DiffFinie.cpp:15:
/usr/include/c++/5/bits/c++0x_warning.h:32:2: error: #error This file requires compiler and library support for the ISO C++ 2011 standard. This support must be enabled with the -std=c++11 or -std=gnu++11 compiler options.
 #error This file requires compiler and library support

# Makefile pour les exercices de calculs numeriques

# definition du compilateur
GPP=g++ -Wall

# lien vers les fichiers d'en-tete des classes ROOT (ROOTINC) et les librairies (ROOTLIB), cad les fichiers binaires
ROOTINC=-I`root-config --incdir`
ROOTLIB=`root-config --libs`

#La liste des executables a compiler
# les executables sont en .exe pour pouvoir beneficier de la regle generique de conversion de .o en .exe
EXE=MinMaxTableau.exe Optimisation_CalculSerie.exe Precision_DiffFinie.exe MethodeSecante.exe

#######################################################################################

# la premiere instruction du makefile est celle par défaut - quand on tape make sans donner d'argument après

all: ${EXE}

#######################################################################################

# Compilation

# Des classes
%.o:%.cpp %.h
    ${GPP} -c -o $@ ${ROOTINC}  $<

# Des programmes principaux
%.o:%.cpp
    ${GPP} -c -o $@ ${ROOTINC}  $<

#######################################################################################

# Edition des liens
# Regle de conversion de chaque .o en .exe
%.exe: %.o
    ${GPP} -o $@ $^ ${ROOTLIB}

#######################################################################################

# nettoyage
clean:
    rm -rf *.o ${EXE} *.pdf *.root *.png Print