fdo#53893: Undefine U_TIMEZONE for BSDs (except for NetBSD)

FreeBSD and other BSDs (except for NetBSD) must not define U_TIMEZONE.  This
patch is obtained from upstream:

http://bugs.icu-project.org/trac/changeset?reponame=&new=31780

Change-Id: Id1b85b9958036230045c3e13eb4b6617e6bdc924

icu/icu4c-bsd.patch

+--- misc/icu/source/common/putilimp.h	2012-06-01 10:52:52.000000000 -0400
++++ misc/build/icu/source/common/putilimp.h	2012-08-21 13:32:58.000000000 -0400
+@@ -117,6 +117,8 @@
+ #   define U_TIMEZONE __timezone
+ #elif U_PLATFORM_USES_ONLY_WIN32_API
+ #   define U_TIMEZONE _timezone
++#elif U_PLATFORM == U_PF_BSD && !defined(__NetBSD__)
++   /* not defined */
+ #elif U_PLATFORM == U_PF_OS400
+    /* not defined */
+ #else
+--- misc/icu/source/common/unicode/platform.h	2012-08-21 16:53:20.957449000 -0400
++++ misc/build/icu/source/common/unicode/platform.h	2012-08-21 17:02:16.000000000 -0400
+@@ -131,7 +131,7 @@
+ #   include <android/api-level.h>
+ #elif defined(linux) || defined(__linux__) || defined(__linux)
+ #   define U_PLATFORM U_PF_LINUX
+-#elif defined(BSD) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
++#elif defined(BSD) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__)
+ #   define U_PLATFORM U_PF_BSD
+ #elif defined(sun) || defined(__sun)
+     /* Check defined(__SVR4) || defined(__svr4__) to distinguish Solaris from SunOS? */

icu/makefile.mk

@@ -49,6 +49,7 @@ TARFILE_ROOTDIR=icu
 #http://bugs.icu-project.org/trac/ticket/8198 rendering with 0D30 and 0D31
 
 PATCH_FILES=\
+    icu4c-bsd.patch \
     icu4c-build.patch \
     icu4c.8320.freeserif.crash.patch \
     icu4c.8198.revert.icu5431.patch \