Try Mingw specific snprintf

Author: matthew-brett

patches/openblas-make-libs.patch

@@ -11,7 +11,7 @@ index d8173534..4e2e0d7b 100644
  	$(RANLIB) ../$(LIBNAME)
  	$(CC) $(CFLAGS) $(LDFLAGS) $(LIBPREFIX).def dllinit.$(SUFFIX) \
 -	-shared -o ../$(LIBDLLNAME) -Wl,--out-implib,../$(IMPLIBNAME) \
-+	-shared -o ../$(LIBDLLNAME) -Wl,--defsym,quadmath_snprintf=snprintf \
++	-shared -o ../$(LIBDLLNAME) -Wl,--defsym,quadmath_snprintf=__mingw_snprintf \
  	-Wl,--whole-archive ../$(LIBNAME) -Wl,--no-whole-archive $(FEXTRALIB) $(EXTRALIB)
 +	dlltool -D $(LIBDLLNAME) -d $(LIBPREFIX).def -l ../$(LIBDLLNAME).a
 +else