CHANNELDIR = ..

# Enable petsc rules, if petsc is set up and an arch is specified
ifdef PETSC_ARCH
#PETSC_DIR=$(HOME)/petsc
include ${PETSC_DIR}/bmake/common/base
endif

# General-purpose utilities
EXECS = addfields.x ascii2field.x changegrid.x couette.x field2ascii.x \
  fielddist.x fieldplots.x fieldprops.x L2IP.x linearcombo.x makebasis.x \
  movieframes.x perturbfield.x projectfields.x projectseries.x randomfield.x \
  symmetrize.x symmetryop.x

# Special-purpose utilities
OTHEREXECS = eigentable.x makeheatmode.x makestokesmode.x minimizegrid.x \
  multibox.x poincare.x seriesdist.x seriesprops.x seriessymmetry.x \
  symmphase.x symmseries.x transbasis.x verifyeigs.x multibox.x

# Additional programs to be compiled if Octave is present
OCT_EXECS = arnoldi.x findorbit.x # podbasis.x
PETSC_EXECS = petsc-newton.x
BUGGY_EXECS = dealias.x profplot.x newtonloop.x newtonREQB.x newtonRPO.x


# Define default C flags for optimized and debugging compilation
# Possible additional flags: -mtune=pentium4, -mtune-=athlon64
CFLAGS = -Wall -O2 -fomit-frame-pointer -DNDEBUG
DCFLAGS = -Wall -g -DDEBUG
PCFLAGS = -Wall -pg -O2 -DNDEBUG


###############################################################################
# You shouldn't need to modify anything below this line

# Determine if Octave is present by using Octave's octave-config shell script.
# Octave is a free Matlab clone whose library provides a C++ interface to LAPACK.
USE_OCTAVE = $(shell octave-config -v)

ifneq ($(strip $(USE_OCTAVE)),)
	OCTAVEVERSION = $(shell octave-config -v)
	OCTAVEINC     = -I$(shell octave-config -p OCTINCLUDEDIR)
	OCTAVELIB     = -Wl,-rpath $(shell octave-config -p OCTLIBDIR) -L$(shell octave-config -p OCTLIBDIR) -loctave -lcruft
	OCTAVEFLAGS   = -DHAVE_OCTAVE
	ALLEXECS = $(EXECS) $(OCT_EXECS)
# Special case for borked octave version (used by the "stable" RHEL 4)
ifeq ($(strip $(OCTAVEVERSION)), 2.1.57)
	OCTAVEINC     = -I$(shell octave-config -p OCTINCLUDEDIR) -I$(shell octave-config -p OCTINCLUDEDIR)/octave
endif
else
	OCTAVEVERSION =
	OCTAVEINC     =
	OCTAVELIB     =
	OCTAVEFLAGS   =
	ALLEXECS = $(EXECS)
endif


# Define header and library options for gcc.
INCLUDEDIRS = -I$(CHANNELDIR)  $(OCTAVEINC)
LIBS  = $(CHANNELDIR)/lib/libchflow.a $(OCTAVELIB) -lfftw3 -lm
DLIBS = -L$(CHANNELDIR)/lib -lchflow-debug $(OCTAVELIB) -lfftw3 -lm
PLIBS = -L$(CHANNELDIR)/lib -lchflow-profile $(OCTAVELIB) -lfftw3 -lm

# Make optimized objects from source
%.o : %.cpp
	g++ $(CFLAGS) $(OCTAVEFLAGS) $(INCLUDEDIRS) -c $<

# Make debugging objects from source
%.do : %.cpp
	g++ $(DCFLAGS) $(OCTAVEFLAGS) $(INCLUDEDIRS) -o $@ -c $<

# Make profiling objects from source
%.po : %.cpp
	g++ $(PCFLAGS) $(OCTAVEFLAGS) $(INCLUDEDIRS) -o $@ -c $<

petsc-newton.o : petsc-newton.cpp petsc-newton.h
	g++ -c $(CFLAGS) ${PETSC_INCLUDE} -I.. petsc-newton.cpp

petsc-newton.do : petsc-newton.cpp petsc-newton.h
	g++ -c $(DCFLAGS) ${PETSC_INCLUDE} -I.. petsc-newton.cpp

# Build petsc execs
%.pcx : %.cpp utilities.o petsc-newton.o
	g++ $(CFLAGS)  ${PETSC_INCLUDE} -I..  $< utilities.o petsc-newton.o ${PETSC_SNES_LIB} $(LIBS) ${PACKAGE_LIBS}  -lchflow -o $@

%.pcdx : %.cpp utilities.o petsc-newton.do
	g++ $(DCFLAGS)  ${PETSC_INCLUDE} -I..  $< utilities.o petsc-newton.o  $(DLIBS) ${PETSC_SNES_LIB} ${PACKAGE_LIBS}  -o $@

# Make optimized executables from objects and libraries
%.x: %.o utilities.o $(CHANNELDIR)/lib/libchflow.a
	g++ $(CFLAGS) $(OCTAVEFLAGS) -o $@ $< $(OBJECTS) utilities.o $(LIBS)

# SHARED LIB VERSION, doesn't work on openSUSE-11.0
# Make optimized executables from objects and libraries
%.x: %.o utilities.o $(CHANNELDIR)/channelflow/.libs/libchflow.a
	g++ $(CFLAGS) $(OCTAVEFLAGS) -o $@ $< $(OBJECTS) utilities.o $(LIBS)

# Make debugging executables from objects and libraries
%.dx: %.do utilities.do $(CHANNELDIR)/lib/libchflow-debug.a
	g++ $(DCFLAGS) $(OCTAVEFLAGS) -g -o $@ $< $(OBJECTS) utilities.do $(DLIBS)

# Make profiling executables from objects and libraries
%.px: %.po utilities.po $(CHANNELDIR)/lib/libchflow-profile.a
	g++ $(PCFLAGS) $(OCTAVEFLAGS) -pg -o $@ $< $(OBJECTS) utilities.po $(PLIBS)

all: utilities.o $(ALLEXECS)

everything: utilities.o $(ALLEXECS) $(OTHEREXECS)

install: utilities.o $(ALLEXECS)
	mkdir -p ../bin
	cp $(ALLEXECS) ../bin

clean :
	rm -f *.o *.x *.do *.dx *.asc *.bf *.ff