# -*- Makefile -*-
#
# $Id$
#
# common makefile definitions shared by all GNUmakefile.*
#
##############################################################################

SHELL        = /bin/sh 

# specify path to find to avoid problems with example named 'find'
FIND         = /usr/bin/find

# provide a value if it isn't already set by make
ifeq ($(CURDIR),)
  CURDIR := $(shell pwd)
endif

INCLUDES     = -I$(BUILDDIR)/include -I$(TOPDIR)/include

ALL_FILES := "*"

ifneq ($(AS_EXT),"")
  ifneq ($(AS_EXT),".")   # special value -- ignore atomic

    # if the assembly file extension is non-empty and not the dot,
    # add all files with that extension to the list of files to
    # compile
    ALL_FILES := $(foreach dir,$(SRCDIRS),\
                     $(wildcard $(dir)/*.cpp $(dir)/*.msg $(dir)/*$(AS_EXT)))
  endif
endif

ifeq ($(ALL_FILES),"*")
  # traverse all subdirectories and get the names of all source files
  ALL_FILES := $(foreach dir,$(SRCDIRS), $(wildcard $(dir)/*.cpp $(dir)/*.msg))
endif


# SRCDIRS must be defined in GNUmakefile that includes this file
ifeq ($(ONE_REPOSITORY),)

  ifneq ($(CXX_REPOSITORY),)

    # compose the name of the template instantiation repository from
    # the name of the test and a unique suffix (so that each test has
    # its own and same names with different definitions do not cause
    # conflicts) and append it to the name of the compiler and linker
    #
    # e.g., Compaq C++ where this will expand to something like
    #     -ptr foo.ti
    # or IBM VisualAge where it will be along the lines of
    #    --qtempinc=foo.ti
    # or
    #    --qtemplateregistry=foo.ti
    #
    repository_name = $(shell basename $(*F) 2>/dev/null).ti

    # add CPPFLAGS to LDFLAGS for compilers that implement implicit
    # inclusion but don't remember (save) the preprocessor flags used
    # during compilation
    # (e.g., IBM VisualAge)
    LDFLAGS += $(CPPFLAGS)

  else   # ifeq ($(CXX_REPOSITORY),)
    ifeq ($(CXX),CC)
      ifeq ($(findstring SunOS,$(PLATFORM)),SunOS)
        # set SUNWS_CACHE_NAME to the basename of the file being compiled
        # followed by .ti, to override the default template repository,
        # SunWS_cache
        tmp := $(CXX)
        CXX =
        CXX += SUNWS_CACHE_NAME=$(*F).ti
        CXX += $(tmp)

        tmp := $(LD)
        LD   =
        LD  += SUNWS_CACHE_NAME=$(*F).ti
        LD  += $(tmp)
      endif   # SunOS
    endif   # SunPro
  endif # neq ($(CXX_REPOSITORY),)
else   # ifneq ($(ONE_REPOSITORY),)

  ifneq ($(CXX_REPOSITORY),)
    repository_name = repository.ti
  endif
endif

ifneq ($(repository_name),)
  ifeq ($(findstring =,$(CXX_REPOSITORY)),=)
      # no space between '=' and the name of the repository
      CXXFLAGS += $(CXX_REPOSITORY)$(repository_name)
      LDFLAGS  += $(CXX_REPOSITORY)$(repository_name)
  else    # ifeq ($(repository_name),)
      # insert a space between the option and the name of the repository
      CXXFLAGS += $(CXX_REPOSITORY) $(repository_name)
      LDFLAGS  += $(CXX_REPOSITORY) $(repository_name)
  endif
endif   # ifeq ($(repository_name),)

CPPFLAGS    += $(INCLUDES)
CXXFLAGS    += $(WARNFLAGS)

VPATH       := $(SRCDIRS)

SRCS        := $(notdir $(filter %.cpp %$(AS_EXT),$(ALL_FILES)))
SRCS        := $(sort $(filter-out $(OMIT_SRCS),$(SRCS)))

OBJS        := $(patsubst %.cpp,%.o,$(filter %.cpp,$(SRCS)))
OBJS        += $(patsubst %$(AS_EXT),%.o,$(filter %$(AS_EXT),$(SRCS)))
OBJS        := $(sort $(OBJS))

# message files - text files used to generate a catalog - see gencat(1)
MSGFILES     = $(filter %.msg,$(ALL_FILES))


ifeq ($(TARGET),)
  # generate binaries or scripts (in constrained environments)
  ifeq ($(NO_A_DOT_OUT),)
    TARGET := $(patsubst %.o,%,$(OBJS))
  else
    TARGET := $(patsubst %.o,%.sh,$(OBJS))
  endif
endif #ifneq ($(TARGET),)

# link with the produced library and the math library
# (take care not to try to link the library with itself)
ifeq ($(findstring $(LIBNAME),$(TARGET)),)
  LDFLAGS += -L$(LIBDIR) -l$(LIBBASE)
  LDLIBS  += -lm
endif  # ifneq ($(LIBNAME),$findstring ($(LIBNAME),$(TARGET)))


# file to write log of the build to
LOGFILE = /dev/null

# if LOGFILE is being created, tee command output into it
# IMPORTANT: $(TEEOPTS) must be last on the command line
ifneq ($(LOGFILE),/dev/null)
  TEEOPTS = 2>&1 | tee -a $(LOGFILE)
endif

# determine the name of the results file against which to compute regressions
REGRESS_FILE := $(shell                                      \
    if [ -z "$(REGRESS)" ] ; then                            \
        ls -tr1 ../$(REPORTFILE)* 2> /dev/null | tail -1 ;   \
    elif [ -f $(REGRESS) ] ; then                            \
        echo "$(REGRESS)" ;                                  \
    else                                                     \
        echo "$(TOPDIR)/results/$(REPORTFILE)" ;             \
    fi)

ifeq ($(REGRESS_FILE),)
  REGRESS_FILE = "$(TOPDIR)/results/$(REPORTFILE)"
endif

# set the RUNTARGET variable to command line args if $RUN isn't set
ifeq ($(RUN),)
  RUNTARGET := $(filter-out run_all runall run,$(MAKECMDGOALS))
else
  RUNTARGET := $(RUN)
endif

ifeq ($(RUNTARGET),)
  RUNTARGET := $(shell echo ./$(TARGET) | sed "s/ / .\//g")
endif


# append command line options to standard flags
CPPFLAGS   += $(CPPOPTS)
CXXFLAGS   += $(CXXOPTS)
LDFLAGS    += $(LDOPTS)
ARFLAGS    += $(AROPTS)
RUNFLAGS   += $(RUNOPTS)