opencv : added package

var/spack/repos/builtin/packages/opencv/package.py

@@ -0,0 +1,50 @@
+from spack import *
+
+
+class Opencv(Package):
+    """
+    OpenCV is released under a BSD license and hence it's free for both academic and commercial use. It has C++, C,
+    Python and Java interfaces and supports Windows, Linux, Mac OS, iOS and Android. OpenCV was designed for
+    computational efficiency and with a strong focus on real-time applications. Written in optimized C/C++, the library
+    can take advantage of multi-core processing. Enabled with OpenCL, it can take advantage of the hardware
+    acceleration of the underlying heterogeneous compute platform. Adopted all around the world, OpenCV has more than
+    47 thousand people of user community and estimated number of downloads exceeding 9 million. Usage ranges from
+    interactive art, to mines inspection, stitching maps on the web or through advanced robotics.
+    """
+    homepage = 'http://opencv.org/'
+    url = 'https://github.com/Itseez/opencv/archive/3.1.0.tar.gz'
+
+    version('3.1.0', '70e1dd07f0aa06606f1bc0e3fa15abd3')
+
+    variant('shared', default=True, description='Enables the build of shared libraries')
+    variant('debug', default=False, description='Builds a debug version of the libraries')
+
+    variant('eigen', default=True, description='Activates support for eigen')
+    variant('ipp', default=True, description='Activates support for IPP')
+
+    depends_on('zlib')
+    depends_on('libpng')
+    depends_on('libjpeg-turbo')
+    depends_on('libtiff')
+
+    depends_on('python')
+    depends_on('py-numpy')
+
+    depends_on('eigen', when='+eigen')
+
+    # FIXME : GUI extensions missing
+    # FIXME : CUDA extensions still missing
+
+    def install(self, spec, prefix):
+        cmake_options = []
+        cmake_options.extend(std_cmake_args)
+
+        cmake_options.extend(['-DCMAKE_BUILD_TYPE:STRING=%s' % ('Debug' if '+debug' in spec else 'Release'),
+                              '-DBUILD_SHARED_LIBS:BOOL=%s' % ('ON' if '+shared' in spec else 'OFF'),
+                              '-DENABLE_PRECOMPILED_HEADERS:BOOL=OFF',
+                              '-DWITH_IPP:BOOL=%s' % ('ON' if '+ipp' in spec else 'OFF')])
+
+        with working_dir('spack_build', create=True):
+            cmake('..', *cmake_options)
+            make('VERBOSE=1')
+            make("install")