# Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

# All rights reserved.

# This component and the accompanying materials are made available

# under the terms of the License "Eclipse Public License v1.0"

# which accompanies this distribution, and is available

# at the URL "http://www.eclipse.org/legal/epl-v10.html".

#

# Initial Contributors:

# Nokia Corporation - initial contribution.

#

# Contributors:

#

# Description:

# WINSCW EXE/DLL/IMPLIB/LIB Function Like Makefile (FLM)

# Knows how to build all possible executables for the WINSCW emulator build

#

#

# passed in values, stripped of whitespace

COPY_FOR_STATIC_LINKAGE:=$(strip $(COPY_FOR_STATIC_LINKAGE))

DEFFILE:=$(strip $(DEFFILE))

DEFFILEKEYWORD:=$(strip $(DEFFILEKEYWORD))

EPOCALLOWDLLDATA:=$(strip $(EPOCALLOWDLLDATA))

EXPORTLIBRARY:=$(strip $(EXPORTLIBRARY))

BASEADDRESS:=$(strip $(BASEADDRESS))

LINKAS:=$(strip $(LINKAS))

NOEXPORTLIBRARY:=$(strip $(NOEXPORTLIBRARY))

SECUREID:=$(strip $(SECUREID))

UID2:=$(strip $(UID2))

UID3:=$(strip $(UID3))

VENDORID:=$(strip $(VENDORID))

VID:=$(strip $(VID))

WIN32_HEADERS:=$(strip $(WIN32_HEADERS))

# local variables

BINDIR:=

BINDIRSTATICLINK:=

BINTARGET:=

BINTARGETSTATICLINK:=

BLDDIR:=

CHECKLIB_TYPE:=

CREATABLEPATHS:=

CLEANTARGETS:=

CW_RUNTIME:=

ENTRYSYMBOL:=

IMPORTLIBLINKAS:=

IMPORTLIBTARGET:=

LIBDIR:=

LINKER_FIRSTSTATLIB:=

MAINLINKAS:=

NEWLIBFILE:=

RELEASABLES:=

STATLIBDIR:=

STDCPP_BUILD:=

STDCPPTAGFILE:=

UID1:=

WIN32_LIBRARIES:=

# FIVESPACES variable created to ensure that a suitable gap of space characters can

# be placed between the separate arguments in the call to a tool (if required).

# This is a workaround for a problem in Cygwin, where separate arguments are interpreted

# as a single argument when passed to bash.

FIVESPACES=$(BLANK)     $(BLANK)

# CW runtime varies based on TARGETTYPE requirements, with wrapper FLMs dictating the choice

# We override a CW-specific environment variable to do this, in common with ABLD

ifeq ($(CW_STATIC_RUNTIME),1)

  CW_RUNTIME:=$(CW_RUNTIME_STATIC)

  CFLAGS:=$(CFLAGS) $(OPT.RUNTIME)staticmulti

else

  CW_RUNTIME:=$(CW_RUNTIME_NONSTATIC)

  CFLAGS:=$(CFLAGS) $(OPT.RUNTIME)dllmulti

endif

MWSym2LibraryFiles:=$(subst $(CHAR_SPACE),$(DIRSEP),$(CW_RUNTIME) $(CW_DEFAULT_LIBS))

ifneq ($(WIN32_LIBRARY),)

  WIN32_HEADERS:=1

  WIN32_LIBRARIES:=$(addprefix $(OPT.LIBFILE),$(WIN32_LIBRARY))

endif

# top-level definitions

BINDIR:=$(RELEASEPATH)/$(FULLVARIANTPATH)

# TARGETPATH and COPY_FOR_STATIC_LINKAGE only apply when TARGETPATH is a sub-directory of /sys/bin

TARGETPATH_APPEND:=$(subst \,/,$(TARGETPATH))

ifneq ($(findstring /sys/bin/,$(TARGETPATH_APPEND)),)

  ifeq ($(COPY_FOR_STATIC_LINKAGE),1)

    BINDIRSTATICLINK:=$(BINDIR)

  endif

  BINDIR:=$(BINDIR)/z$(TARGETPATH_APPEND)

else

  COPY_FOR_STATIC_LINKAGE:=0

endif

BLDDIR:=$(OUTPUTPATH)/$(FULLVARIANTPATH)

LIBDIR:=$(RELEASEPATH)/$(LINKPATH)

STATLIBDIR:=$(RELEASEPATH)/$(FULLVARIANTPATH)

CREATABLEPATHS:=$(BLDDIR) $(BINDIR) $(BINDIRSTATICLINK)

# Deduce whether we should be performing a build with standard CPP characteristics

# This operates differently per-OS release, although OE TARGETTYPEs always build with standard CPP traits

ifeq ($(OPEN_ENVIRONMENT),1)

  STDCPP_BUILD:=1

endif

ifeq ($(SUPPORTS_STDCPP_NEWLIB),1)

  ifeq ($(NOSTDCPP),1)

    STDCPP_BUILD:=

  else

    ifeq ($(STDCPP),1)

      STDCPP_BUILD:=1

    endif

  endif

  # Operator new linking depends on both the use of the NEWLIB keyword and whether a component supports a standard

  # CPP build.

  ifneq ($(NEWLIB),)

    # If specified, always use the NEWLIB keyword value for operator new library linking

    NEWLIBFILE:=$(STATLIBDIR)/$(NEWLIB)

  else

    # If not performing a standard CPP build, link to an appropriate default Symbian new library.

    # Standard CPP components defer to the toolchain supplied libraries.

    ifneq ($(STDCPP_BUILD),1)

      ifeq ($(SYSTEM_TARGET),1)

        NEWLIBFILE:=$(STATLIBDIR)/$(DEFAULT_SYSTEM_NEWLIB)

      else

        NEWLIBFILE:=$(STATLIBDIR)/$(DEFAULT_NORMAL_NEWLIB)

      endif

    endif

  endif

endif

ifeq ($(STDCPP_BUILD),1)

  CDEFS:=$(CDEFS) $(STDCPP_DEF)

  SYSTEMINCLUDE:=$(SYSTEMINCLUDE) $(STDCPP_INCLUDE)

  CFLAGS:=$(CFLAGS) $(OPT.WCHAR) on

  CHECKLIB_TYPE:=$(OPT.CHECKLIB.STDCPP)

  STDCPPTAGFILE:=$(OPT.LIBPATH)$(EPOCROOT)/epoc32/tools/tag $(OPT.SEARCH) tag_coff

else

  CFLAGS:=$(CFLAGS) $(OPT.WCHAR) off

  CHECKLIB_TYPE:=$(OPT.CHECKLIB.SYMCPP)

endif

ifeq ($(WIN32_HEADERS),1)

  CDEFS:=$(CDEFS) WIN32

  CDEFS:=$(CDEFS) _WINDOWS

  CFLAGS:=$(CFLAGS) $(OPT.STDINC)

else

  CFLAGS:=$(CFLAGS) $(OPT.NOSTDINC)

endif

# get the compiler to generate dependencies for us?

ifeq ($(DEPEND_SKIP),)

  CFLAGS:=$(CFLAGS) $(OPT.DEPEND)

endif

# specifics relating to the base type of the target being processed

ifeq ($(BASE_TYPE),dll)

  # Special case, although this should be dealt with in the wrapper FLM in a better way

  ifeq ($(TARGETTYPE),exexp)

    CDEFS:=$(CDEFS) __EXE__

    ENTRYSYMBOL:=__E32Startup

    LFLAGS:=$(LFLAGS) $(OPT.NOENTRY)

    UID1:=1000007a

  else

    CDEFS:=$(CDEFS) __DLL__

    ENTRYSYMBOL:=__E32Dll

    LFLAGS:=$(LFLAGS) $(OPT.MAINENTRYPOINT)__Win32DllMain@12

    UID1:=10000079

  endif

  LFLAGS:=$(LFLAGS) $(OPT.SHARED)

  ifneq ($(BASEADDRESS),)

    LFLAGS:=$(LFLAGS) $(OPT.IMAGEBASE)$(BASEADDRESS)

  endif

  ifeq ($(FIRST_STATLIB),)

    BASE_TYPE_STATLIB:=edll.lib

  else

    BASE_TYPE_STATLIB:=$(FIRST_STATLIB)

  endif

endif

ifeq ($(BASE_TYPE),exe)

  CDEFS:=$(CDEFS) __EXE__

  ENTRYSYMBOL:=?_E32Bootstrap@@YGXXZ

  UID1:=1000007a

  ifeq ($(FIRST_STATLIB),)

    BASE_TYPE_STATLIB:=eexe.lib

  else

    BASE_TYPE_STATLIB:=$(FIRST_STATLIB)

  endif

endif

ifeq ($(FIRSTLIB),)

  LINKER_FIRSTSTATLIB:=$(BASE_TYPE_STATLIB)

else

  LINKER_FIRSTSTATLIB:=$(FIRSTLIB)

endif

BINTARGET:=$(BINDIR)/$(TARGET).$(if $(REQUESTEDTARGETEXT),$(REQUESTEDTARGETEXT),$(TARGETTYPE))

# Run trace compiler #####################################

TRACE_MARKER_PATH:=$(OUTPUTPATH)

ifeq ($(UID3),)

  ifeq ($(UID2),)

    USE_TRACE_COMPILER:=

  else

    UID_TC:=$(UID2)

  endif

else

  UID_TC:=$(UID3)

endif

# USE_TRACE_COMPILER defaults to blank in Raptor config.

# Users can turn TC on by setting it to 1 in user config.

ifneq ($(USE_TRACE_COMPILER),) 

  include $(FLMHOME)/tracecompiler.mk

endif

####################

## IMPORT LIBRARY ##

####################

IMPORTLIBLINKAS:=$(TARGET).$(if $(REQUESTEDTARGETEXT),$(REQUESTEDTARGETEXT),$(TARGETTYPE))

# LINKAS, if supplied, only applies to IMPLIB TARGETTYPEs

ifeq ($(BASE_TYPE),importlib)

  ifneq ($(LINKAS),)

    IMPORTLIBLINKAS:=$(LINKAS)

  else

    IMPORTLIBLINKAS:=$(TARGET).dll

  endif

endif

ifneq ($(EXPORTLIBRARY),)

  IMPORTLIBTARGET:=$(LIBDIR)/$(EXPORTLIBRARY).lib

else

  IMPORTLIBTARGET:=$(LIBDIR)/$(TARGET).lib

endif

# Regardless of whether a TARGETTYPE normally supports an import library, always attempt

# to generate one if an explicit DEFFILE keyword was listed

ifeq ($(DEFFILEKEYWORD),1)

  SUPPORTS_IMPORT_LIBRARY:=1

endif

ifeq ($(SUPPORTS_IMPORT_LIBRARY),1)

  ifneq ($(NOEXPORTLIBRARY),1)

    ifneq ($(TARGET_$(call sanitise,$(IMPORTLIBTARGET))),1)

      RELEASABLES:=$(RELEASABLES) $(if $(or $(EXPORTUNFROZEN),$(DEFFILE)),$(IMPORTLIBTARGET))

      # import libraries are generated to the UDEB release directory

      ifneq ($(VARIANTTYPE),udeb)

        CREATABLEPATHS:=$(CREATABLEPATHS) $(if $(or $(EXPORTUNFROZEN),$(DEFFILE)),$(LIBDIR))

      endif

      ifneq ($(EXPORTUNFROZEN),)

        # EXPORTUNFROZEN amounts to doing the stage-two link with the makedef generated temporary .def file but creating a .lib

        # file as a side-effect of linking.  The import library is therefore dependent on the final binary in this instance.

        $(info <warning project='$(PROJECT_META)' component='$(COMPONENT_META)'>EXPORTUNFROZEN present in $(PROJECT_META) - unfrozen exports will be represented in import library.</warning> )

        $(IMPORTLIBTARGET): $(BINTARGET)

        $(eval TARGET_$(call sanitise,$(IMPORTLIBTARGET)):=1)

      else

        ifneq ($(DEFFILE),)

          # If a .def file physically exists (either explicitly via DEFFILE or implicitly in the correct place) then we

          # generate an import library with reference to it

          PREPPEDDEFFILE:=$(BLDDIR)/$(TARGET).prep.def

          CLEANTARGETS:=$(CLEANTARGETS) $(PREPPEDDEFFILE)

          define win32def2lib

            $(IMPORTLIBTARGET): $(DEFFILE)

	          $(call startrule,win32def2lib) \

	          $(PREPDEF) "$(DEFFILE)" "$(PREPPEDDEFFILE)" && \

	          $(LD) $(PREPPEDDEFFILE) $(OPT.IMPORTLIB) -o "$$@" $(OPT.ADDCOMMAND) "out:$(IMPORTLIBLINKAS)" $(OPT.WARNINGS) off \

	          $(call endrule,win32def2lib)

          endef

          $(eval $(win32def2lib))

          $(eval TARGET_$(call sanitise,$(IMPORTLIBTARGET)):=1)

        endif

      endif

    endif

  endif

endif

ifneq ($(BASE_TYPE),importlib)

  #############

  ## COMPILE ##

  #############

  ifeq ($(COPY_FOR_STATIC_LINKAGE),1)

    BINTARGETSTATICLINK:=$(BINDIRSTATICLINK)/$(TARGET).$(if $(REQUESTEDTARGETEXT),$(REQUESTEDTARGETEXT),$(TARGETTYPE))

  endif

  RELEASABLES:=$(RELEASABLES) $(BINTARGET) $(BINTARGETSTATICLINK)

  # work on a local source files list

  SRCFILES:=$(SOURCE)

  # and there may be more source for stage 2 in OE builds

  SRCFILES_OE:=

  ifneq ($(BASE_TYPE),staticlib)

    # add the generated UID source file

    GENSOURCE:=$(BLDDIR)/$(TARGET).UID.CPP

    SRCFILES:=$(SRCFILES) $(GENSOURCE)

    # the generated symbol lookup source file for Open Environment.

    # this only gets linked in at stage 2

    SYMSOURCE:=$(if $(OPEN_ENVIRONMENT),$(BLDDIR)/$(TARGET)_SYM_.cpp,)

    SRCFILES_OE:=$(SYMSOURCE)

    CLEANTARGETS:=$(CLEANTARGETS) $(GENSOURCE) $(SYMSOURCE)

    ifeq ($(UID2),00000000)

      ifneq ($(UID2_DEFAULT),)

        UID2:=$(UID2_DEFAULT)

      endif

    endif

    ifeq ($(SECUREID),)

      SECUREID:=$(UID3)

    endif

    define win32generateUIDcpp

      $(GENSOURCE): $(PROJECT_META)

	    $(call startrule,win32generateUIDcpp,,) \

	    echo "// SBS-generated uid source file" > $$@ && \

	    echo "#include <e32cmn.h>" >> $$@ && \

	    echo "#pragma data_seg(\".SYMBIAN\")" >> $$@ && \

	    echo "__EMULATOR_IMAGE_HEADER2(0x$(UID1),0x$(UID2),0x$(UID3),EPriority$(EPOCPROCESSPRIORITY),0x$(CAPABILITYFLAG1),0x$(CAPABILITYFLAG2),0x$(SECUREID),0x$(VENDORID),0x$(VERSIONHEX),$(EPOCALLOWDLLDATA))" >> $$@ && \

	    echo "#pragma data_seg()" >> $$@ \

	    $(call endrule,win32generateUIDcpp)

    endef

    $(eval $(win32generateUIDcpp))

  endif # neq $(BASE_TYPE),staticlib

  # object files

  OBJECTFILES:=$(patsubst %,$(BLDDIR)/%,$(addsuffix .o,$(basename $(notdir $(call allsuffixsubst,.cia .CIA .Cia,_.cia,$(SRCFILES))))))

  OBJECTFILES:=$(patsubst %.UID.o,%_UID_.o,$(OBJECTFILES))

  # object file extras for stage 2

  OBJECTFILES_OE:=$(patsubst %,$(BLDDIR)/%,$(addsuffix .o,$(basename $(notdir $(SRCFILES_OE)))))

  CLEANTARGETS:=$(CLEANTARGETS) $(OBJECTFILES) $(OBJECTFILES_OE)

  # include paths and preinclude file

  UINCLUDE:=$(patsubst %,$(OPT.USERINCLUDE)%,$(USERINCLUDE))

  SINCLUDE:=$(patsubst %,$(OPT.SYSINCLUDE)%,$(SYSTEMINCLUDE))

  PINCLUDE:=$(OPT.PREINCLUDE)$(notdir $(PRODUCT_INCLUDE))

  #INCLUDES:=$(UINCLUDE) $(OPT.SPLITINCLUDE) $(SINCLUDE) $(PINCLUDE)

  INCLUDES:=$(OPT.SPLITINCLUDE) $(UINCLUDE) $(SINCLUDE) $(PINCLUDE)

  # macro definitions

  DEFINES:=$(call makemacrodef,$(OPT.DEFINE),$(CDEFS) $(TARGET_MACRO))

  # $(1) is the name of the source file, $(2) is the extension to map it to e.g. .o

  # no space in front of function body

  define mapwin32file

    $(patsubst %.UID$(2),%_UID_$(2),$(BLDDIR)/$(addsuffix $2,$(basename $(notdir $(call allsuffixsubst,.cia .CIA .Cia,_.cia,$(1))))))

  endef

  # compile all source files, creating and including compiler generated dependency files along the way

  # SED is used to (a) remove relatively pathed "object_file: source_file" references that can appear

  # with some versions of mwccsym2 and (b) convert slashes

  define win32compile2object

    $(eval DEPENDFILENAME:=$(call mapwin32file,$(1),.o.d))

    $(eval DEPENDFILE:=$(wildcard $(DEPENDFILENAME)))

    $(call mapwin32file,$(1),.o): $(1) $(PROJECT_META) $(if $(DEPENDFILE),,RESOURCE BITMAP EXPORT) $(if $(USE_TRACE_COMPILER),$(TRACE_MARKER))

	  $(call startrule,win32compile2object,,$(1)) \

	  $(CC) $$(if $$(filter %.C,$(1)),-lang c) $(CFLAGS) $(OPTION_CW) \

	  $(if $(STDCPP_BUILD),$$(if $$(filter %.c %.C,$(1)),,$$(call makemacrodef,$(OPT.DEFINE),$(STDCPP_WCHAR_DEF))),) \

	  $(DEFINES) $(INCLUDES) $(OPT.OUT)"$$@" "$(1)" && \

	  $(GNUSED) 's#\\\\\(.\)#/\1#g;s#/ #\\\ #g;s#\([A-Za-z]:\)\\\\#\1/#g;1,1s#.*: .* \(.\)\?$$$$#$(call mapwin32file,$(1),.o): $1 \1#' $(call mapwin32file,$(1),.dep) > $(call mapwin32file,$(1),.o.d) \

	  $(call endrule,win32compile2object)

    CLEANTARGETS:=$$(CLEANTARGETS) $(call mapwin32file,$(1),.dep)

    CLEANTARGETS:=$$(CLEANTARGETS) $(DEPENDFILENAME)

    ifneq "$(DEPENDFILE)" ""

    ifeq ($(NO_DEPEND_INCLUDE),)

      ifeq "$(filter %CLEAN,$(call uppercase,$(MAKECMDGOALS)))" ""

        -include $(DEPENDFILE)

      endif

    endif

    endif

    # individual source file compilation

    SOURCETARGET_$(call sanitise,$(1)): $(call mapwin32file,$(1),.o)

  endef

  # List target, depends on object file

  define win32list

  LISTING:: $(OBJECTFILES) $(OBJECTFILES_OE)

	$(call startrule,win32listing) \

	$(CC) $(OPT.LISTING) $(patsubst %.UID.o,%_UID_.o,$(BLDDIR)/$(addsuffix .o,$(basename $(notdir $(1))))) -o $(basename $1).WINSCW.lst \

	$(call endrule,win32listing)

  endef

  $(foreach SRCFILE,$(SRCFILES) $(SRCFILES_OE),$(eval $(call win32compile2object,$(SRCFILE))))

  $(foreach SRCFILE,$(SRCFILES) $(SRCFILES_OE),$(eval $(call win32list,$(SRCFILE))))

  ######################

  ## RESOURCE COMPILE ##

  ######################

  # If Python has been used to construct the environment on Windows then the standard MW include path environment

  # variable will have been munged to UPPERCASE.

  STDMWCINCLUDEPATHS:=$(if $(MWCSym2Includes),$(MWCSym2Includes),$(MWCSYM2INCLUDES))

  define win32resourcecompile

    # Note that two calls are made to the resource compiler here.  There seems to be no means to override the

    # default behaviour of dumping dependency files into the CWD when using -MD.  So - we compile once for real,

    # and then pipe dependency output through SED afterwards to create the dependency file where we want it

    $(eval DEPENDFILENAME:=$(call mapwin32file,$(1),.res.d))

    $(eval DEPENDFILE:=$(wildcard $(DEPENDFILENAME)))

    $(call mapwin32file,$(1),.res): $(1) $(PROJECT_META) $(if $(DEPENDFILE),,RESOURCE BITMAP EXPORT)

	  $(call startrule,win32resourcecompile,,$(1)) \

	  MWCIncludes='$(STDMWCINCLUDEPATHS)' $(RC) $(OPT.OUT)"$$@" "$(1)" && \

	  MWCIncludes='$(STDMWCINCLUDEPATHS)' $(RC) -make $(OPT.OUT)"$$@" "$(1)" | \

	  $(GNUSED) 's#\\\\\(.\)#/\1#g;s#/ #\\\ #g;s#\([A-Za-z]:\)\\\\#\1/#g;1,1s#.*: .* \(.\)\?$$$$#$(call mapwin32file,$(1),.res): $1 \1#' > $(call mapwin32file,$(1),.res.d) \

	  $(call endrule,win32resourcecompile)

    CLEANTARGETS:=$$(CLEANTARGETS) $(DEPENDFILENAME)

    ifneq "$(DEPENDFILE)" ""

    ifeq ($(NO_DEPEND_INCLUDE),)

      ifeq "$(filter %CLEAN,$(call uppercase,$(MAKECMDGOALS)))" ""

        -include $(DEPENDFILE)

      endif

    endif

    endif

  endef

  $(foreach WIN32RESOURCEFILE,$(WIN32_RESOURCE),$(eval $(call win32resourcecompile,$(WIN32RESOURCEFILE))))

  OBJECTFILES:=$(OBJECTFILES) $(patsubst %,$(BLDDIR)/%,$(addsuffix .res,$(basename $(notdir $(WIN32_RESOURCE)))))

  ##################

  ## LINK/ARCHIVE ##

  ##################

  # libraries

  STATICLIBS:=$(patsubst %,%.lib,$(STATICLIBRARY))

  STATICLIBFILES:=$(patsubst %,$(STATLIBDIR)/%,$(STATICLIBS))

  LINKER_FIRSTSTATLIBFILE:=$(STATLIBDIR)/$(LINKER_FIRSTSTATLIB)

  ifeq ($(VARIANTTYPE),urel)

    LINKLIBS:=$(patsubst %.dso,%.lib,$(LIBRARY))

  else

    LINKLIBS:=$(patsubst %.dso,%.lib,$(LIBRARY_DEBUG))

  endif

  LINKLIBFILES:=$(patsubst %,$(LIBDIR)/%,$(LINKLIBS))

  MAP:=

  ifneq ($(BASE_TYPE),staticlib)

    ifneq ($(BASE_TYPE),importlib)

      # link map file (urel only)

      ifeq ($(VARIANTTYPE),urel)

        MAP:=$(OPT.MAP)$(BINTARGET).map

        RELEASABLES:=$(RELEASABLES) $(BINTARGET).map

      endif

    endif

  endif

  # all object files are listed in a response file to minimise the length of linker calls

  OBJECTFILES_LRF:=$(BLDDIR)/$(TARGET)_$(VARIANTTYPE)_objects.lrf

  CLEANTARGET:=$(CLEANTARGETS) $(OBJECTFILES_LRF)

  define groupin10

	$(if $1,@echo -e $(foreach L,$(wordlist 1,10,$1),"$(L)\\n") >> $(OBJECTFILES_LRF),)

	$(if $1,$(call groupin10,$(wordlist 11,$(words $1),$1)),@true)

  endef

  #

  # Archive

  #

  ifeq ($(BASE_TYPE),staticlib)

    define win32archive

      $(BINTARGET): $(OBJECTFILES)

	    @echo "" > $(OBJECTFILES_LRF);

		$(call groupin10,$(notdir $(OBJECTFILES))) ;

	    $(call startrule,win32archive) \

	    $(LD) $(OPT.STATICLIBRARY) $(LFLAGS) $(OPT.NOIMPLIB) $(WIN32_LIBRARIES) $(OPT.OUT)"$$@" $(STDCPPTAGFILE) $(OPT.LIBPATH)$(BLDDIR) $(OPT.SEARCH) @$(OBJECTFILES_LRF) \

	    $(if $(SAVESPACE),; $(GNURM) -rf $(BLDDIR); true,) \