# ----------------------------------------------------------------------
#
#  zoom.symbols.mk - define FPCL symbols required for compilation
#
#  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.build.mk
#      and moved from SoftRelTools to ZMutility package
#    05-Jan-1997  WEB  Incorporated updated DEFECT_STANDARD_CPLUSPLUS
#      and FIXED_TYPES_ENV symbols; keep both predecessor symbols
#      __STANDARD_CPLUSPLUS and _FIXED_TYPES_ENV for now
#    03-Jun-1998  WEB  Added MSVC++ compliance
#
# ----------------------------------------------------------------------


# ----------
# [5] Determine whether we're using a standards-compliant compiler
# (in order to provide proper code for such compilers):
# ----------

#compliant__ := no	# assume the worst
#
#ifeq (KCC, $(CXX))	# KCC is standards-compliant
#  compliant__ := yes
#endif
#
#ifeq (srt_ntcc, $(CXX))	# MSVC++ is standards-compliant
#  compliant__ := yes
#endif
#
## Define appropriate symbols if compiler is sufficiently standards-compliant
#ifeq (yes, $(compliant__))
#  ifeq (, $(filter -D__STANDARD_CPLUSPLUS, $(CPPFLAGS)))
#    override CPPFLAGS += -D__STANDARD_CPLUSPLUS
#  endif
#  ifeq (, $(filter -DDEFECT_STANDARD_CPLUSPLUS, $(CPPFLAGS)))
#    override CPPFLAGS += -DDEFECT_STANDARD_CPLUSPLUS
#  endif
#endif			# $(compliant__) == yes


# ----------
# [6] Note whether exception-handling is disabled (in order to force
# an exit() call instead of a throw in packages that employ FPCL's
# Exceptions package):
# ----------

exceptions__ := yes	# assume the best

ifeq (g++, $(CXX))	# g++ requires "-fhandle-exceptions" and "-frtti"
  ifeq (, $(filter -fhandle-exceptions, $(CXXFLAGS)))
    exceptions__ := no
  endif
  ifeq (, $(filter -frtti, $(CXXFLAGS)))
    exceptions__ := no
  endif
endif			# g++

ifeq (KCC, $(CXX))	# KCC requires "--exceptions" but not "--no_rtti"
  ifeq (, $(filter --exceptions, $(CXXFLAGS)))
    ifeq (, $(filter -x, $(CXXFLAGS)))	# "-x" is synonym for "--exceptions"
      exceptions__ := no
    endif
  endif
  ifeq (--no_rtti, $(filter --no_rtti, $(CXXFLAGS)))
    exceptions__ := no
  endif
endif			# KCC

# Define NOTHROW if exceptions are unsupported
ifeq (no, $(exceptions__))
  ifeq (, $(filter -DNOTHROW, $(CPPFLAGS)))
    override CPPFLAGS += -DNOTHROW
  endif
endif			# $(exceptions__) == no


# ----------
# [7] Ensure that FixedTypes' symbol is defined:
# ----------

#ifeq (, $(filter -D_FIXED_TYPES_ENV, $(CPPFLAGS)))
#  override CPPFLAGS += -D_FIXED_TYPES_ENV=1
#endif
#ifeq (, $(filter -DFIXED_TYPES_ENV, $(CPPFLAGS)))
#  override CPPFLAGS += -DFIXED_TYPES_ENV=1
#endif