Icu: Fix compilation on VS 2015

Change-Id: Iec2806dfa416bcbfa63eed2985c74c7a2ea897ea
Reviewed-on: https://gerrit.libreoffice.org/16759Reviewed-by: Michael Stahl <mstahl@redhat.com>
Tested-by: Michael Stahl <mstahl@redhat.com>

external/icu/UnpackedTarball_icu.mk

@@ -29,6 +29,7 @@ $(eval $(call gb_UnpackedTarball_add_patches,icu,\
 	external/icu/icu.changeset_36727.patch.1 \
 	external/icu/icu.changeset_36801.patch.1 \
 	$(if $(filter-out ANDROID,$(OS)),external/icu/icu4c-icudata-stdlibs.diff) \
+	external/icu/icu.vc15.patch \
 ))
 
 # vim: set noet sw=4 ts=4:

external/icu/icu.vc15.patch

+--- misc/icu/source/io/ufile.c	2015-07-04 19:08:35.889168902 +0200
++++ misc/build/icu/source/io/ufile.c	2015-07-04 19:12:43.040185494 +0200
+@@ -66,7 +66,9 @@
+ #if U_PLATFORM_USES_ONLY_WIN32_API
+     if (0 <= result->fFileno && result->fFileno <= 2) {
+         /* stdin, stdout and stderr need to be special cased for Windows 98 */
+-#if _MSC_VER >= 1400
++#if _MSC_VER >= 1900
++        result->fFile = __acrt_iob_func(_fileno(f));
++#elif _MSC_VER >= 1400
+         result->fFile = &__iob_func()[_fileno(f)];
+ #else
+         result->fFile = &_iob[_fileno(f)];