package libEMF: NEW - does not compile yet
package arpack: changing of order -lblas -llapack fixes compilation
gnuplot: disable compilation on x86_64-w64-mingw32
package qhull: patches from mxe-octave added; and some more changes to fix compilation
index: fix typo and order packages alphabetically
pkg octave: disable-shared, add some dependencies that have been fixed; compilations seems fine - still some linking errors