# ----------------------------------------------------------------------
#
#  zoom.build.mk - enforce FPCL compiler flags requirements
#
#  Intended to be used as a postprocessing step after all others'
#  GNUmakefiles have been read and processed
#
#  History:
#    21-Oct-1997  WEB  Initial draft
#    25-Oct-1997  WEB  Added FixedTypes' req's and debugging opt
#    10-Nov-1997  WEB  Revised approach to adding to CPPFLAGS
#    11-Nov-1997  WEB  Fixed syntax error
#    13-Nov-1997  WEB  Improved exception-processing logic and comments;
#      added new logic for compiler control options; resequenced
#    14-Nov-1997  WEB  Corrected NOTHROW symbol name; revised
#      optimization logic (including matching debugging option)
#    17-Nov-1997  WEB  Added __KAI_STRICT (per KAI's advice)
#    18-Nov-1997  WEB  Added debugging option and a bit of narrative
#    18-Dec-1997  WEB  Separated zoom.mk into this and zoom.symbols.mk,
#      and moved from SoftRelTools to ZMutility package
#    21-Apr-1998  PGC  Added NT Fortran flags
#    03-Jun-1998  WEB  Added NT CXX flags
#    16-Jun-1998  WEB  Added LDFLAGS debugging output
#    17-Jul-1998  WEB  Compensated for LDFLAGS deficiency
#    16-Sep-1998  WEB  Added ARFLAGS debugging output
#    16-Apr-1999  WEB  Comment out most of this, relying on the
#      increased maturity of SoftRelTools
#
# ----------------------------------------------------------------------


# ----------
# [1] Define the dialect the compiler is to accept:
# ----------

#ifeq (KCC, $(CXX))	# KCC
#  ifeq (, $(filter --abstract_pointer, $(CXXFLAGS)))
#    override CXXFLAGS += --abstract_pointer
#  endif
#  ifeq (, $(filter --no_implicit_include, $(CXXFLAGS)))
#    override CXXFLAGS += --no_implicit_include
#  endif
#  ifeq (, $(filter --no_implicit_typename, $(CXXFLAGS)))
#    override CXXFLAGS += --no_implicit_typename
#  endif
#
#  ifeq (, $(filter --strict, $(CXXFLAGS)))
#    ifeq (, $(filter -ansi, $(CXXFLAGS)))		# synonymous w/ --strict
#      override CXXFLAGS += --strict
#    endif
#  endif
#  ifeq (, $(filter -D__KAI_STRICT, $(CPPFLAGS)))	# recommended by KAI
#    override CPPFLAGS += -D__KAI_STRICT
#  endif
#endif			# KCC


# ----------
# [2] Obtain best available debugging option:
# ----------

#ifeq (g++, $(CXX))	# g++ uses -gxxx; we prefer -ggdb3
#  ifeq (, $(filter -g%, $(CXXFLAGS)))
#    override CXXFLAGS += -ggdb3
#  else
#    override CXXFLAGS := $(patsubst -g%, -ggdb3, $(CXXFLAGS))
#  endif
#endif			# g++
#
#ifeq (KCC, $(CXX))	# KCC uses -gx; we prefer -g3 (debug and optimize)
#  ifeq (, $(filter -g%, $(CXXFLAGS)))
#    override CXXFLAGS += -g --backend -g3
#  else
#    override CXXFLAGS := $(patsubst -g%, -g --backend -g3, $(CXXFLAGS))
#  endif
#endif			# KCC


# ----------
# [3] Obtain best available code improvement (optimization) option:
# ----------

#ifeq (g++, $(CXX))	# g++ uses -O flag with options; we prefer -O2
## since -O[12] are currently broken, however, we use nothing
#  ifeq (-O, $(filter -O%, $(CXXFLAGS)))
#    override CXXFLAGS +=
#  else
#    override CXXFLAGS := $(patsubst -O%, , $(CXXFLAGS))
#  endif
#endif			# g++
#
#ifeq (KCC, $(CXX))	# KCC uses +Kx -Oy; we prefer +K3 -O2
#  ifeq (, $(filter +K%, $(CXXFLAGS)))
#    override CXXFLAGS += +K3
#  else
#    override CXXFLAGS := $(patsubst +K%, +K3, $(CXXFLAGS))
#  endif
#  ifeq (, $(filter -O%, $(CXXFLAGS)))
#    override CXXFLAGS += -O2
#  else
#    override CXXFLAGS := $(patsubst -O%, -O2, $(CXXFLAGS))
#  endif
#endif			# KCC


# ----------
# [4] Provide other compiler control options:
# ----------

ifeq (g++, $(CXX))
  #ifeq (, $(filter -Wall, $(CXXFLAGS)))	# turn on all g++'s warnings
  #  override CXXFLAGS += -Wall
  #endif
  ifneq (, $(filter -mips%, $(CXXFLAGS)))	# take out any -mips? flags
    override CXXFLAGS := $(patsubst -mips%, , $(CXXFLAGS))
  endif
endif			# g++

#ifeq (KCC, $(CXX))
  #ifeq (, $(filter +K, $(CXXFLAGS)))	# we prefer +K3
    #override CXXFLAGS := $(patsubst +K%, +K3, $(CXXFLAGS))
  #endif
#endif			# KCC

ifeq (srt_ntcc, $(CXX))	# MSVC++ compiler seems to need extra heap space
  override CXXFLAGS += -NTZm400
endif			# srt_ntcc


# ----------
# [7] Prepare any needed loader flags
# ----------

#ifeq (KCC, $(CXX))	# KCC uses +K flag with options; we prefer +K3
#  ifeq (--exceptions, $(filter --exceptions, $(CXXFLAGS)))
#    override LDFLAGS += --exceptions
#  endif
#endif			# KCC


# ----------
# [8] Permit debugging this GNUmakefile
# ----------

ifdef ZM_VERBOSE
  COMMAND := $(shell echo "zoom.build.mk:" >& 2)
  COMMAND := $(shell echo "  CXX      = $(CXX)" >& 2)
  COMMAND := $(shell echo "  CPPFLAGS = $(CPPFLAGS)" >& 2)
  COMMAND := $(shell echo "  CXXFLAGS = $(CXXFLAGS)" >& 2)
  COMMAND := $(shell echo "  LDFLAGS  = $(LDFLAGS)" >& 2)
  COMMAND := $(shell echo "  ARFLAGS  = $(ARFLAGS)" >& 2)
  COMMAND := $(shell echo "  cwd      = $(shell /bin/pwd)"  >& 2)
endif

# ----------
# [9] Make sure that HepTuple's Fortran is compiled with the proper
#     calling conventions
# ----------

ifeq (-MSVC50,$(findstring -MSVC50,$(BFARCH)))
  override FCFLAGS := $(patsubst -NTiface:nomixed_str_len_arg, , $(FCFLAGS))
  override FCFLAGS := $(patsubst -NTassume:underscore, , $(FCFLAGS))
  override FCFLAGS := $(patsubst -NTnames:lowercase, , $(FCFLAGS))
endif