###############################################################################
#
# arch_spec_Inventor.mk
#
# Set up for:  GL, Inventor, and Hepvis
#
###############################################################################
#
# Joe Boudreau March 1998.
#
# There are four concievable compilers in use so there will be four different
# Hepvis libraries, one for the KAI compiler, one for the Native Compiler, one
# for the SGI native compiler compiled with the -n32 flags, and one for the
# gnu compiler. So first, we figure out which of these situations we're in.
#
# Open Inventor may come from SGI or from TGS.  If it comes from SGI, then
# it's located in the system area.  If it comes from TGS, it's in the 
# products area.  So, we then figure out where our open inventor distribution
# is coming from.
# 
###############################################################################
#
# Lucas Taylor   4 Dec 1998   
# 
# Modified for CMS (especially on Sun)
# 
# Move Motif stuff to:  arch_spec_X11.mk
#
###############################################################################




###############################################################################
#
# Identify the compiler and choose the directory extension accordingly. (FNAL)
#
###############################################################################
ifneq (,$(findstring KCC,$(BFARCH)))
   COMP=KCC
else 
ifneq (,$(findstring IRIX6-CC,$(BFARCH)))
   COMP=CCN32
else 
ifneq (,$(findstring -CC,$(BFARCH)))
   COMP=CC
else 
   COMP=g++
endif
endif
endif


###############################################################################
#
# Set CMS defaults (Sun for now...)
#
###############################################################################

ifeq ("_CMS","$(EXPERIMENT)")

    ifndef OGL_DIR
    #
    #  Inventor (at CERN) expects to find GL in /opt/opengl (on Sun)
    #
       OGL_DIR    = /opt/opengl
    endif

    ifndef OIV_DIR
       OIV_DIR    = /afs/cern.ch/sw/lhcxx/specific/@sys/OpenInventor/pro
    endif

    ifndef HEPVIS_DIR
       HEPVIS_DIR = /afs/cern.ch/user/c/cmscan/local_Hepvis
    endif

    OGL_INC    =$(OGL_DIR)/include
    OGL_LIB    =$(OGL_DIR)/lib
 
    OIV_INC    =$(OIV_DIR)/include
    OIV_LIB    =$(OIV_DIR)/lib
    
    HEPVIS_INC =$(HEPVIS_DIR)/include
    HEPVIS_LIB =$(HEPVIS_DIR)/lib
    HEPVISINC  =$(HEPVIS_INC)
    HEPVISLIB  =$(HEPVIS_LIB)
  
endif


###############################################################################
#
# Check if OI from TGS is installed.  Hepvis libs for use with OI have 
# a different directory structure, a subdirectory for each compiler.
#
# Changed to cope with Hepvis v4_x directory structure,  2 Dec 98 CG
#
###############################################################################

ifeq (,$(findstring v3,$(HEPVIS_DIR)))
ifeq (D0,$(EXPERIMENT))
ifneq (,$(findstring IRIX,$(BFARCH)))
  override CPPFLAGS += -I$(HEPVIS_DIR)/KCC_N32_EX/include
  override LDFLAGS  += -L$(HEPVIS_DIR)/KCC_N32_EX/lib
else
  override CPPFLAGS += -I$(HEPVIS_DIR)/KCC_EX/include
  override LDFLAGS  += -L$(HEPVIS_DIR)/KCC_EX/lib
endif
else
  override CPPFLAGS  += -I$(HEPVISINC) # properly defined for Hepvis v4_x and higher
  override LDFLAGS   += -L$(HEPVISLIB)
endif
else
  ifdef OIV_DIR
     HEPVIS_INC := $(HEPVIS_DIR)/include
     HEPVIS_LIB := $(HEPVIS_DIR)/lib$(COMP)
  else
     HEPVIS_INC := $(HEPVIS_DIR)/include
     HEPVIS_LIB := $(HEPVIS_DIR)/lib
  endif
  override CPPFLAGS  += -I$(HEPVIS_INC) 
  override LDFLAGS   += -L$(HEPVIS_LIB)
endif

override LOADLIBES += -lHEPVis 


###############################################################################
#
# See if we have a TGS/OI or an SGI/OI  (FNAL)
#
##############################################################################
ifdef OIV_DIR
   OIV_INC = $(OIV_DIR)/include
   OIV_LIB = $(OIV_DIR)/lib
#  OIV_LIB = $(OIV_DIR)/lib$(COMP)
#  Comp. Division should toggle the above kludge.  JeffK will work
#  on realizing this....
ifeq (D0,$(EXPERIMENT))
ifneq (,$(findstring IRIX,$(BFARCH)))
OIV_LIB = $(OIV_DIR)/libKCC_N32_EX
else
OIV_LIB = $(OIV_DIR)/libKCC_EX
endif
endif
   override CPPFLAGS  += -I$(OIV_INC) 
   override LDFLAGS   += -L$(OIV_LIB)
endif


###############################################################################
#
# Add directories to include and lib paths
#
##############################################################################
   
ifneq (,$(OIV_INC))
    override CPPFLAGS  += -I$(OIV_INC)
endif

ifneq (,$(OGL_INC))
    override CPPFLAGS  += -I$(OGL_INC)
endif

ifneq (,$(OIV_LIB))
    override LDFLAGS   += -L$(OIV_LIB)
endif

ifneq (,$(OGL_LIB))
    override LDFLAGS   += -L$(OGL_LIB)
endif



###############################################################################
#
# Inventor and GL libraries
#
###############################################################################

override LOADLIBES += -lInventorXt -lInventor -limage   

ifneq (,$(findstring KCC,$(BFARCH)))
#  TGS Inventor for KAI has a circular dependency => we need it twice
   override LOADLIBES += -lInventor     
endif

ifneq (,$(findstring HEPVis,$(LOADLIBES)))
  override LOADLIBES += -lGLU -lGL   
ifeq (D0,$(EXPERIMENT))
ifneq (,$(MESA_DIR))
override CPPFLAGS += -I$(MESA_DIR)/include
override LDFLAGS  += -L$(MESA_DIR)/lib
endif
endif
endif

###############################################################################
#
# X11 libraries -- should really get them from arch_spec_X11.mk !? (L.T. / CMS)
#
###############################################################################

ifneq (_CMS,$(EXPERIMENT))
  ifneq (,$(findstring Linux,$(BFARCH)))
	override LDFLAGS += -L/usr/X11R6/lib
    override LOADLIBES += -lm -lXm -lXp -lXt -lSM -lICE -lXext -lX11 -lXi -ldl
  else 
    override LOADLIBES += -lm -lXm -lXt -lXext -lX11 -lSM -lICE    
  endif
endif