++PHP_ARG_WITH(system-tzdata, for use of system timezone data,
++[ --with-system-tzdata[=DIR] to specify use of system timezone data],
++no, no)
++
++if test "$PHP_SYSTEM_TZDATA" != "no"; then
++ AC_DEFINE(HAVE_SYSTEM_TZDATA, 1, [Define if system timezone data is used])
++
++ if test "$PHP_SYSTEM_TZDATA" != "yes"; then
++ AC_DEFINE_UNQUOTED(HAVE_SYSTEM_TZDATA_PREFIX, "$PHP_SYSTEM_TZDATA",
++ [Define for location of system timezone data])
++ fi
++fi
++
+ PHP_DATE_CFLAGS="-Wno-implicit-fallthrough -I@ext_builddir@/lib -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1 -DHAVE_TIMELIB_CONFIG_H=1"
+ timelib_sources="lib/astro.c lib/dow.c lib/parse_date.c lib/parse_tz.c lib/parse_posix.c
+ lib/timelib.c lib/tm2unixtime.c lib/unixtime2tm.c lib/parse_iso_intervals.c lib/interval.c"
+diff -up php-8.0.0beta3/ext/date/lib/parse_tz.c.systzdata php-8.0.0beta3/ext/date/lib/parse_tz.c
+--- php-8.0.0beta3/ext/date/lib/parse_tz.c.systzdata 2020-09-01 19:13:26.000000000 +0200
++++ php-8.0.0beta3/ext/date/lib/parse_tz.c 2020-09-02 08:07:51.039979873 +0200
+@@ -26,9 +26,22 @@