mingw-w64: Special case for large input for complex inverse trigonometric functions (bug #49091). * src/mingw-w64-complex-inverse-trig.patch: Add patch for mingw-w64 CRT that implements a special case for large input for complex inverse trigonometric functions cacosh and casinh (and therefore functions that are derived from it, like cacos and casin). * dist-files.mk: Add new patch to list.

diff -ur ocs.old/src/Makefile ocs/src/Makefile
--- ocs.old/src/Makefile	2015-07-07 20:23:51.000000000 -0400
+++ ocs/src/Makefile	2015-07-07 20:24:25.000000000 -0400
@@ -1,9 +1,10 @@
 OCTFILES:=Mshichmanhodgesmosfet.oct
+MKOCTFILE ?= mkoctfile
 
 all: $(OCTFILES)
 
 %.oct:  %.cc
-	mkoctfile $<
+	$(MKOCTFILE) $<
 
 clean:
 	-rm -f *.o core octave-core *.oct *~