fdo#59850: Resolves invalid date changing by ICU's timezone detection bug.

Patch was also submitted with https://ssl.icu-project.org/trac/ticket/10129
of which the outcome should be monitored.

Change-Id: I3ebd4aaef281214062a5b2a858eff8e57a34c9b1
Reviewed-on: https://gerrit.libreoffice.org/3637Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Eike Rathke <erack@redhat.com>

icu/UnpackedTarball_icu.mk

@@ -12,6 +12,7 @@ $(eval $(call gb_UnpackedTarball_UnpackedTarball,icu))
 $(eval $(call gb_UnpackedTarball_set_tarball,icu,$(ICU_TARBALL)))
 
 $(eval $(call gb_UnpackedTarball_add_patches,icu,\
+	icu/icu4c.10129.wintz.patch \
 	icu/icu4c.9948.mlym-crash.patch \
 	icu/icu4c-build.patch \
 	icu/icu4c.8198.revert.icu5431.patch \

icu/icu4c.10129.wintz.patch

+# Fix for fdo#59850
+# Patch was also submitted with https://ssl.icu-project.org/trac/ticket/10129
+# of which the outcome should be monitored.
+
+--- misc/icu/source/common/wintz.c
++++ misc/build/icu/source/common/wintz.c
+@@ -254,7 +254,6 @@
+     char apiStdName[MAX_LENGTH_ID];
+     char regStdName[MAX_LENGTH_ID];
+     char tmpid[MAX_LENGTH_ID];
+-    int32_t apiStdLength = 0;
+     int32_t len;
+     int id;
+     int errorCode;
+@@ -280,8 +279,8 @@
+
+     /* Convert the wchar_t* standard name to char* */
+     uprv_memset(apiStdName, 0, sizeof(apiStdName));
+-    u_strFromWCS(apiStd, MAX_LENGTH_ID, &apiStdLength, apiTZI.StandardName, -1, &status);
+-    u_austrncpy(apiStdName, apiStd, apiStdLength);
++    u_strFromWCS(apiStd, MAX_LENGTH_ID, NULL, apiTZI.StandardName, -1, &status);
++    u_austrncpy(apiStdName, apiStd, sizeof(apiStdName) - 1);
+
+     tmpid[0] = 0;