#
# ------ GNU/LINUX ------         Intel OneAPI DPC++ 2022.x and higher
#
ifeq ($(G4SYSTEM),Linux-icx)
  CXX       := icpx
  CXXFLAGS  := -W -Wall -ansi -pedantic -Wno-non-virtual-dtor -Wno-long-long
  CXXFLAGS  += -Wwrite-strings -Wpointer-arith -Woverloaded-virtual
  CXXFLAGS  += -Wno-variadic-macros -Wshadow -pipe
  CXXFLAGS  += -fno-trapping-math -ftree-vectorize -fno-math-errno
  CXXFLAGS  += -fp-model precise
  CPPFLAGS  += -std=c++17
  CXXFLAGS  += -std=c++17
  G4USE_STD17 := 1
  ifdef G4MULTITHREADED
    CXXFLAGS += -ftls-model=initial-exec -pthread
  endif
  ifdef G4OPTIMISE
    CXXFLAGS  += -O3
    FCFLAGS   := -O3
    CCFLAGS   := -O3
  else
    ifdef G4DEBUG
      CXXFLAGS  += -g
      FCFLAGS   := -g
      CCFLAGS   := -g
    endif
  endif
  ifdef G4PROFILE
    CXXFLAGS  += -qp
    FCFLAGS   += -qp
    CCFLAGS   += -pg
  endif
  ifdef G4LIB_BUILD_SHARED
    CXXFLAGS  += -fPIC
    FCFLAGS   += -fPIC
    CCFLAGS   += -fPIC
  endif
  G4RUNPATHOPTION := -Wl,-rpath -Wl,
  G4STATIC_MODE += -Wl,--whole-archive
  G4NOSTATIC_MODE += -Wl,--no-whole-archive
  CC := icx
  FC := ifx
  FCFLAGS += -noautomatic -assume nobscc -assume no2underscores
  FCLIBS := -lg2c -lnsl
  AR := ar r
  ECHO    := /bin/echo -e
  SHEXT   := so
  LOADLIBS += -limf
  ifndef X11FLAGS
    X11FLAGS  := -I/usr/include/X11/extensions -I/usr/include/X11
  endif
  ifndef X11LIBS
    X11LIBS   := -L/usr/lib  -lXmu -lXt -lXext -lX11 -lSM -lICE
  endif
  ifndef XMFLAGS
    XMFLAGS   := -I/usr/include
  endif
  ifndef XMLIBS
    XMLIBS    := -lXm -lXpm
  endif
  ifndef XAWFLAGS
    XAWFLAGS   := -I/usr/include
  endif
  ifndef XAWLIBS
    XAWLIBS    := -lXaw
  endif
  DLDLIBS   := -ldl
  ifndef OGLFLAGS
    OGLFLAGS  := -I$(OGLHOME)/include 
  endif
  ifndef OGLHOME
    OGLHOME     := /usr
  endif
  ifndef OGLLIBS
    OGLLIBS   := -L$(OGLHOME)/lib -lGL
  endif

# ---- QT Setup block -------------------------------------------------------

  ifndef QTHOME
    QTHOME     := /usr
  endif
  ifndef QTMOC
    QTMOC      := $(QTHOME)/bin/moc
  endif

  ifndef QT_VERSION
    QT_VERSION := 5
  endif

  ifeq ($(QT_VERSION),5)
    ifndef QTFLAGS              # Qt5
      QTFLAGS   := -I $(QTHOME)/include -I$(QTHOME)/include/Qt
      QTFLAGS   += -I $(QTHOME)/include/QtCore
      QTFLAGS   += -I $(QTHOME)/include/QtGui
      QTFLAGS   += -I $(QTHOME)/include/QtWidgets
      QTFLAGS   += -I $(QTHOME)/include/QtOpenGL
      QTFLAGS   += -I $(QTHOME)/include/Qt3DCore
      QTFLAGS   += -I $(QTHOME)/include/Qt3DExtras
      QTFLAGS   += -I $(QTHOME)/include/Qt3DRender
      QTFLAGS   += -I $(QTHOME)/include/QtPrintSupport
    endif
  else                          # Qt4
    ifndef QTFLAGS
      QTFLAGS   := -I$(QTHOME)/include -I$(QTHOME)/include/Qt
      QTFLAGS   += -I$(QTHOME)/include/QtCore 
      QTFLAGS   += -I$(QTHOME)/include/QtGui 
      QTFLAGS   += -I$(QTHOME)/include/QtOpenGL 
    endif
  endif
  ifndef QTLIBPATH
    QTLIBPATH := $(QTHOME)/lib
    QT_SEARCH_LIB := $(shell ls  $(QTLIBPATH)/qt$(QT_VERSION)/libq* 2>/dev/null | wc -l )
    ifneq ($(QT_SEARCH_LIB),0)
      QTLIBPATH := $(QTHOME)/lib/qt$(QT_VERSION)
    endif
  endif
  ifeq ($(QT_VERSION),5)
    ifndef QTLIBS              # Qt5
      QTLIBS   := -L$(QTLIBPATH) -lQt5Core -lQt5Gui -lQt5Widgets -lQt5PrintSupport
    endif
    ifndef QT3DLIBS
      QT3DLIBS := -L$(QTLIBPATH) -lQt5Core -lQt5Gui -lQt5Widgets -lQt53DCore -lQt53DExtras -lQt53DRender -lQt5PrintSupport
    endif
    ifndef GLQTLIBS
      GLQTLIBS := -L$(QTLIBPATH) -lQt5Core -lQt5Gui -lQt5Widgets  -lQt5OpenGL -lQt5PrintSupport
    endif
  else                         # Qt4
    ifndef QTLIBS
      QTLIBS   := -L$(QTLIBPATH) -lQtCore -lQtGui
    endif
    ifndef GLQTLIBS
      GLQTLIBS := -L$(QTLIBPATH) -lQtCore -lQtGui -lQtOpenGL
    endif
  endif

#----------------------------------------------------------------------------

  define build-granular-shared-lib
    @libdir=`(cd $(@D);/bin/pwd)`; \
     cd $(G4TMPDIR); \
     $(CXX) -Wl,-soname,$(@F) -shared -o $$libdir/$(@F) $(INTYLIBS) *.o
  endef
  define build-global-shared-lib
    @libdir=`(cd $(@D);/bin/pwd)`; \
     cd $(G4TMP)/$(G4SYSTEM); \
     $(CXX) -Wl,-soname,$(@F) -shared -o $$libdir/$(@F) $(INTYLIBS) \
                    $(foreach dir,$(SUBLIBS),$(dir)/*.o);
  endef

endif