--- ./common/putilimp.h.orig
+++ ./common/putilimp.h
@@ -123,6 +123,8 @@
 #   elif defined(__GLIBC__)
        /* glibc */
 #      define U_TIMEZONE      __timezone
+#   else
+#      define U_TIMEZONE timezone
 #   endif
 #elif U_PLATFORM_USES_ONLY_WIN32_API
 #   define U_TIMEZONE _timezone
