# -*- mode: makefile -*-
#
# Makefile of ROOT for AMD Opteron and Intel EM64T (64 bit mode) Linux with gcc

PLATFORM      = linux

DEBUGFLAGS    = -g
#DEBUGFLAGS    = -gstabs
OPTFLAGS      = -O2 -DNDEBUG
# Optional compiler options for gcc >= 3.4.0
#OPTFLAGS      = -O3 -march=opteron
ifeq (debug,$(findstring debug,$(ROOTBUILD)))
OPT           = $(DEBUGFLAGS)
NOOPT         =
else
OPT           = $(OPTFLAGS)
NOOPT         =
endif
ifeq ($(CXX14),yes)
CXX11FLAGS    = -std=c++1y
else
CXX11FLAGS    = -std=c++11
endif

# Compiler:
CXX           ?= g++
CC            ?= gcc
CXXFLAGS      = -pipe -m64 $(CXX11FLAGS) -Wshadow -Wall -W -Woverloaded-virtual \
                -fPIC $(EXTRA_CXXFLAGS) \
                -Wno-deprecated-declarations $(USERCONF_CXXFLAGS)
CFLAGS        = -pipe -m64 -Wshadow -Wall -W -fPIC $(EXTRA_CFLAGS) $(USERCONF_CFLAGS)
COMPILER      = gnu

ifeq ($(WERROR),yes)
CLINGCXXFLAGS += -Werror
CXXFLAGS      += -Werror
NOOPT         += -pedantic -Wno-long-long
endif

# Linker:
LD            ?= g++
LDFLAGS       = -m64 $(OPT) $(EXTRA_LDFLAGS) -Wl,--no-undefined -Wl,--as-needed
SOFLAGS       = -shared -Wl,-soname,
SOEXT         = so

# System libraries:
SYSLIBS       = -lm -ldl $(OSTHREADLIBDIR) $(OSTHREADLIB) \
                $(ALLOCLIBDIR) $(ALLOCLIB) -rdynamic
XLIBS         = $(XPMLIBDIR) $(XPMLIB) $(X11LIBDIR) -lXext -lX11
CILIBS        = -lm -ldl -rdynamic
CRYPTLIBS     = -lcrypt

# Fortran:
ifneq ($(findstring gfortran, $(F77)),)
ifeq ($(F77),)
# only needed to get default compiler in ./configure
F77           = gfortran
endif
F77FLAGS      = -fPIC -m64 -std=legacy
ifneq ($(shell $(F77) -m64 -print-file-name=libgfortran.$(SOEXT)),libgfortran.$(SOEXT))
F77LIBS      := $(shell $(F77) -m64 -print-file-name=libgfortran.$(SOEXT))
else
F77LIBS      := $(shell $(F77) -m64 -print-file-name=libgfortran.a)
endif
F77LIBS      += $(shell $(F77) -m64 -print-file-name=libgfortranbegin.a)
endif

ifneq ($(findstring g77, $(F77)),)
ifeq ($(F77),)
# only needed to get default compiler in ./configure
F77           = g77
endif
F77FLAGS      = -fPIC -m64
ifneq ($(shell $(F77) -print-file-name=libg2c.so),libg2c.so)
F77LIBS      := $(shell $(F77) -m64 -print-file-name=libg2c.so) -lnsl
else
F77LIBS      := $(shell $(F77) -m64 -print-file-name=libg2c.a) -lnsl
endif
endif

# Extras
GLIBC_MALLOC_DEPRECATED = yes

ifneq ($(CXX:%clang++=),$(CXX))
ifneq ($(CXXMODULES),)
  CXXFLAGS += -fmodules
endif
endif