Use ccache for packages built with cmake. * Makefile.in: New variable CMAKE_CCACHE_FLAGS. * src/armadillo.mk, src/cgal.mk, src/cmake.mk, src/cminpack, src/double-conversion.mk, src/eigen.mk, src/gdcm.mk, src/gl2ps.mk, src/hdf5.mk, src/lapack.mk, src/libical.mk, src/libproxy, src/llvm.mk, src/of-dicom.mk, src/openal.mk, src/opencv.mk, src/openexr.mk, src/openscenegraph.mk, src/physfs.mk, src/qhull.mk, src/qjson.mk, src/rapidjson.mk, src/suitesparse.mk, src/sundials-ida.mk, src/taglib.mk, src/vigra.mk, src/vmime.mk, src/vtk.mk, src/wt.mk: Add new variable to cmake flags. Harmonize indentation in files.

diff -ur portaudio.orig/portaudio-2.0.pc.in portaudio/portaudio-2.0.pc.in
--- portaudio.orig/portaudio-2.0.pc.in	2015-01-26 13:21:54.575071537 -0500
+++ portaudio/portaudio-2.0.pc.in	2015-01-26 14:27:24.442724865 -0500
@@ -8,5 +8,6 @@
 Requires:
 Version: 19
 
-Libs: -L${libdir} -lportaudio @LIBS@
+Libs: -L${libdir} -lportaudio 
+Libs.private: @LIBS@
 Cflags: -I${includedir} @THREAD_CFLAGS@