fixed NDK r10d & cairo crash issue
I added -fno-tree-dominator-opts to cairo/Android.mk as a temporary workaround (see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56982 for more details)
The crashed were probably caused by setjmp() call at cairo/distsrc/cairo/src/cairo-boxes-intersect.c line 492