# Download all packages to this directory.
TMP_DIR=./PYTMP

# Select Python version.
PYVERSION=2.7
PYTHON=python${PYVERSION}

# Package to download frm http://r.research.att.com/
FORTRANPACKAGE=gfortran-42-5664.pkg

# Select which versions of the packages you want to install.
NUMPYVERSION=1.5.0
SCIPYVERSION=0.8.0
MATPLOTLIBMAJORVERSION=1.0
MATPLOTLIBVERSION=${MATPLOTLIBMAJORVERSION}.0

# Normally, you shouldn’t need change this.
OSX_SDK_VER=10.6
ARCH_FLAGS=-arch i386 -arch x86_64

# Values for some environment variables. You shouldn’t need to change this.
MACOSX_DEPLOYMENT_TARGET=${OSX_SDK_VER}
CFLAGS="${ARCH_FLAGS} -I/usr/X11/include -I/usr/X11/include/freetype2 -isysroot /Developer/SDKs/MacOSX${OSX_SDK_VER}.sdk"
LDFLAGS="-Wall -undefined dynamic_lookup -bundle ${ARCH_FLAGS} -L/usr/X11/lib -syslibroot,/Developer/SDKs/MacOSX${OSX_SDK_VER}.sdk"
FFLAGS="${ARCH_FLAGS}"


default: all

# Create a temporary directory for the build process	
_tmp_dir:
	mkdir -p ${TMP_DIR}
	
# Clean the the temporary build directory
clean:
	rm -rf ${TMP_DIR}

# Download gfortran and start the installer
fortran: _tmp_dir
	cd ${TMP_DIR} && \
	${PYTHON} -c "import urllib; urllib.urlretrieve('http://r.research.att.com/${FORTRANPACKAGE}', '${FORTRANPACKAGE}')" && \
	open ${FORTRANPACKAGE}

# Download all required packages
fetch: _tmp_dir
	cd ${TMP_DIR} && \
	${PYTHON} -c "import urllib; urllib.urlretrieve('http://sourceforge.net/projects/numpy/files/NumPy/${NUMPYVERSION}/numpy-${NUMPYVERSION}.tar.gz/download', 'numpy-${NUMPYVERSION}.tar.gz')" && \
	${PYTHON} -c "import urllib; urllib.urlretrieve('http://sourceforge.net/projects/scipy/files/scipy/${SCIPYVERSION}/scipy-${SCIPYVERSION}.tar.gz/download', 'scipy-${SCIPYVERSION}.tar.gz')" && \
	${PYTHON} -c "import urllib; urllib.urlretrieve('http://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-${MATPLOTLIBMAJORVERSION}/matplotlib-${MATPLOTLIBVERSION}.tar.gz/download', 'matplotlib-${MATPLOTLIBVERSION}.tar.gz')"
	
# Extract, build and install NumPy
numpy:
	cd ${TMP_DIR} && \
	rm -rf numpy-${NUMPYVERSION} && \
	tar -xf numpy-${NUMPYVERSION}.tar.gz && \
	cd numpy-${NUMPYVERSION} && \
	export MACOSX_DEPLOYMENT_TARGET=${MACOSX_DEPLOYMENT_TARGET} && \
	export CFLAGS=${CFLAGS} && \
	export LDFLAGS=${LDFLAGS} && \
	export FFLAGS=${FFLAGS} && \
	${PYTHON} setup.py build && \
	${PYTHON} setup.py install && \
	cd .. && \
	${PYTHON} -c "import numpy; print 'Installed NumPy', numpy.__version__"
	
# Extract, build and install SciPy
scipy:
	cd ${TMP_DIR} && \
	rm -rf scipy-${SCIPYVERSION} && \
	tar -xf scipy-${SCIPYVERSION}.tar.gz && \
	cd scipy-${SCIPYVERSION} && \
	export MACOSX_DEPLOYMENT_TARGET=${MACOSX_DEPLOYMENT_TARGET} && \
	export CFLAGS=${CFLAGS} && \
	export LDFLAGS=${LDFLAGS} && \
	export FFLAGS=${FFLAGS} && \
	${PYTHON} setup.py build && \
	${PYTHON} setup.py install && \
	cd .. && \
	${PYTHON} -c "import scipy; print 'Installed SciPy', scipy.__version__"
	
# Extract, build and install Matplotlib
matplotlib:
	cd ${TMP_DIR} && \
	rm -rf matplotlib-${MATPLOTLIBVERSION} && \
	tar -xf matplotlib-${MATPLOTLIBVERSION}.tar.gz && \
	cd matplotlib-${MATPLOTLIBVERSION} && \
	export MACOSX_DEPLOYMENT_TARGET=${MACOSX_DEPLOYMENT_TARGET} && \
	export CFLAGS=${CFLAGS} && \
	export LDFLAGS=${LDFLAGS} && \
	${PYTHON} setup.py build && \
	${PYTHON} setup.py install && \
	cd .. && \
	${PYTHON} -c "import matplotlib; print 'Installed Matplotlib', matplotlib.__version__"
	
# Fetch and build NumPy, SciPy and Matplotlib
all: fetch numpy scipy matplotlib
	echo "all done"
	
# Execute tests for NumPy and SciPy
test: _tmp_dir
	export MACOSX_DEPLOYMENT_TARGET=${MACOSX_DEPLOYMENT_TARGET} && \
	export CFLAGS=${CFLAGS} && \
	export LDFLAGS=${LDFLAGS} && \
	export FFLAGS=${FFLAGS} && \
	cd ${TMP_DIR} && \
	${PYTHON} -c "import numpy; numpy.test('1', '10')" && \
	${PYTHON} -c "import scipy; scipy.test('1', '10')"