#========================================================================
#
# NAME
# 
#     makefile
#
# DESCRIPTION
# 
#     Makefile for UNIX systems and Windows + Cygwin for compiling 
#     and testing CRCDemo.
#
#     Run from a command window by calling
#
#         make
#
#     To compile and test the program, type
#
#         make test
#
#
#  LEGAL
#
#     FFT Verision 2.1 - A Program for generating and checking CRC codes.
#     Copyright (C) 1999-2009 by Sean Erik O'Connor.  All Rights Reserved.
#
#     This program is free software: you can redistribute it and/or modify
#     it under the terms of the GNU General Public License as published by
#     the Free Software Foundation, either version 3 of the License, or
#     (at your option) any later version.
#
#     This program is distributed in the hope that it will be useful,
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#     GNU General Public License for more details.
#
#     You should have received a copy of the GNU General Public License
#     along with this program.  If not, see <http://www.gnu.org/licenses/>.
#    
#     The author's address is artificer!AT!seanerikoconnor!DOT!freeservers!DOT!com
#     with the !DOT! replaced by . and the !AT! replaced by @
#
#=============================================================================

# Put this pseudo-target first so make without command line options executes it.
all: makeAllExes

platform:
	@echo $(HOSTNAME)

#============================== Configuration ================================

# Get the name of the host and figure out if we are on a Windows/PC/Cygwin 
# platform.
HOSTNAME := $(shell python -c "import platform; print platform.node()")

ifeq ($(HOSTNAME), seanwinimac)
PLATFORM = cygwin
endif

ifeq ($(HOSTNAME), peripatus)
PLATFORM = cygwin
endif

ifeq ($(HOSTNAME), Peripatus)
PLATFORM = cygwin
endif

# Default platform is Mac OS X
ifndef PLATFORM
PLATFORM = mac
endif

# Use the latest Mac OS X 10.5 (Leopard) SDK.
ifeq ($(PLATFORM), mac)
SDK = /Developer/SDKs/MacOSX10.5.sdk
MAC_SDK = -isysroot ${SDK}
endif

# Cygwin include files and libraries.
ifeq ($(PLATFORM), cygwin)
CYGWIN_CPP_INC = -I "C:/cygwin/lib/gcc/i686-pc-mingw32/3.4.4/include/c++"
CPP_LIBS = -L"C:/cygwin/lib" 
endif

# GNU standard C and C++ compilers.
ifeq ($(PLATFORM), mac)
CPP= /Developer/usr/bin/g++-4.2
else
CPP  	= g++
endif



#============================== Compile and Link Flags =======================

# On the Mac, create a universal binary architectures for both ppc7400 and i386.
ifeq ($(PLATFORM), mac)
ARCH = -arch ppc -arch i386
endif

# Debug and optimization switches.
CPP_DEBUG_FLAGS = -O3 $(ARCH)
#CPP_DEBUG_FLAGS = -g3 $(ARCH)

# Turn on C++ exceptions, and collect the other flags.
CPP_FLAGS 	= -fexceptions $(CPP_DEBUG_FLAGS) $(MAC_SDK)

# Location of C++ and C Libraries.
ifeq ($(PLATFORM), cygwin)
endif

# C++ and C include files.
CPP_INC		= -I /usr/include ${CYGWIN_CPP_INC}

# Link flags.
ifeq ($(PLATFORM), mac)
LFLAGS = $(ARCH) -isysroot ${SDK}
endif


#============================== Root directories =============================

# Source file root directories.
CPP_SRC_DIR	= ../SourceCode

# Object file root directories.
CPP_OBJ_DIR 	= Bin

# Executable file root directories.
CPP_BIN_DIR		= Bin


#============================== List of Files ================================

# Object files.
CPP_OBJ  		= $(CPP_OBJ_DIR)/FFT.o

# Main program object files.
CPP_OBJ_MAIN 	= $(CPP_OBJ_DIR)/testFFT.o

# Main program executables.
CPP_BIN_MAIN		= $(CPP_BIN_DIR)/testFFT.exe


#============================== Implicit Rules ===============================

# Link all object files to executables.
$(CPP_BIN_MAIN): $(CPP_OBJ_MAIN) $(CPP_OBJ)
	$(CPP) $(LFLAGS) $(CPP_OBJ_MAIN) $(CPP_OBJ) -o $(CPP_BIN_MAIN) $(CPP_LIBS)


# C++ and C source file compilation to object files.
$(CPP_BIN_DIR)/%.o : $(CPP_SRC_DIR)/%.cpp
	$(CPP) -c $(CPP_FLAGS) $(CPP_INC) $< -o $@

# List of all file.o : file.h dependencies.
FFT.o: FFT.cpp fft.h
testFFT.o: testFFT.cpp fft.h

#============================== Targets ======================================

# Make all the executables.
makeAllExes: $(CPP_BIN_MAIN)

# Run tests for C++ Primpoly.
test: $(CPP_BIN_MAIN)
	$(CPP_BIN_MAIN) fftIn.txt fftOut.txt

# Remove all C and C++ object files and binaries.
clean:
	rm $(CPP_OBJ) $(CPP_OBJ_MAIN) $(CPP_BIN_MAIN)