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require 'formula'
class OpenBabel < Formula
homepage 'http://www.openbabel.org'
url 'http://sourceforge.net/projects/openbabel/files/openbabel/2.3.2/openbabel-2.3.2.tar.gz'
sha1 'b8831a308617d1c78a790479523e43524f07d50d'
option 'gui', 'Build the Graphical User Interface'
option 'png', 'Support PNG depiction'
option 'python', 'Compile Python language bindings'
option 'java', 'Compile Java language bindings'
depends_on 'pkg-config' => :build
depends_on 'cmake' => :build
depends_on 'wxmac' if build.include? 'gui'
depends_on 'cairo' if build.include? 'png'
depends_on 'eigen' if build.include? 'python'
depends_on 'eigen' if build.include? 'java'
def install
args = %W[ -DCMAKE_INSTALL_PREFIX=#{prefix} ]
args << "-DPYTHON_BINDINGS=ON" if build.include? 'python'
args << "-DJAVA_BINDINGS=ON" if build.include? 'java'
args << "-DBUILD_GUI=ON" if build.include? 'gui'
args << "-DCAIRO_INCLUDE_DIRS=#{include}/cairo "\
"-DCAIRO_LIBRARIES=#{lib}/libcairo.dylib" if build.include? 'png'
# Find the right pyhton installation (code from opencv.rb)
if build.include? 'python'
python_prefix = `python-config --prefix`.strip
# Python is actually a library. The libpythonX.Y.dylib points to this lib, too.
if File.exist? "#{python_prefix}/Python"
# Python was compiled with --framework:
args << "-DPYTHON_LIBRARY='#{python_prefix}/Python'"
if !MacOS::CLT.installed? and python_prefix.start_with? '/System/Library'
# For Xcode-only systems, the headers of system's python are inside of Xcode
args << "-DPYTHON_INCLUDE_DIR='#{MacOS.sdk_path}/System/Library/Frameworks/Python.framework/Versions/2.7/Headers'"
else
args << "-DPYTHON_INCLUDE_DIR='#{python_prefix}/Headers'"
end
else
python_lib = "#{python_prefix}/lib/lib#{which_python}"
if File.exists? "#{python_lib}.a"
args << "-DPYTHON_LIBRARY='#{python_lib}.a'"
else
args << "-DPYTHON_LIBRARY='#{python_lib}.dylib'"
end
args << "-DPYTHON_INCLUDE_DIR='#{python_prefix}/include/#{which_python}'"
end
args << "-DPYTHON_PACKAGES_PATH='#{lib}/#{which_python}/site-packages'"
end
args << '..'
mkdir 'build' do
system "cmake", *args
system "make"
system "make install"
end
if build.include? 'python'
pydir = lib/which_python/'site-packages'
pydir.install lib/'openbabel.py', lib/'pybel.py'
cd pydir do
`python -c 'import py_compile;py_compile.compile(\"openbabel.py\");py_compile.compile(\"pybel.py\")'`
end
end
end
def caveats; <<-EOS.undent
Python modules are installed to #{HOMEBREW_PREFIX}/lib/#{which_python}/site-packages
so the PYTHONPATH environment variable should include the paths
#{HOMEBREW_PREFIX}/lib/#{which_python}/site-packages:#{HOMEBREW_PREFIX}/lib
Java libraries are installed to #{HOMEBREW_PREFIX}/lib so this path should be
included in the CLASSPATH environment variable.
EOS
end
def which_python
"python" + `python -c 'import sys;print(sys.version[:3])'`.strip
end
end
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