Implement proper time zone support

Cosmopolitan now supports 104 time zones. They're embedded inside any
binary that links the localtime() function. Doing so adds about 100kb
to the binary size. This change also gets time zones working properly
on Windows for the first time. It's not needed to have /etc/localtime
exist on Windows, since we can get this information from WIN32. We're
also now updated to the latest version of Paul Eggert's TZ library.

third_party/xxhash/BUILD.mk

@@ -21,7 +21,7 @@ THIRD_PARTY_XXHASH_A_DIRECTDEPS =				\
         LIBC_STDIO						\
         LIBC_STR						\
         LIBC_SYSV						\
-        LIBC_TIME                       
+        THIRD_PARTY_TZ
 
 THIRD_PARTY_XXHASH_A_DEPS :=					\
 	$(call uniq,$(foreach x,$(THIRD_PARTY_XXHASH_A_DIRECTDEPS),$($(x))))

third_party/xxhash/cli/xsum_bench.c

@@ -61,8 +61,7 @@
 #include "libc/sysv/consts/clock.h"
 #include "libc/sysv/consts/sched.h"
 #include "libc/sysv/consts/timer.h"
-#include "libc/time/struct/tm.h"
-#include "libc/time/time.h"   /* clock_t, clock, CLOCKS_PER_SEC */
+#include "libc/time.h"   /* clock_t, clock, CLOCKS_PER_SEC */
 #include "libc/errno.h"  /* errno */
 
 #define TIMELOOP_S 1

third_party/xxhash/cli/xsum_config.h

@@ -87,7 +87,7 @@
 #include "libc/sysv/consts/fileno.h"
 #include "libc/sysv/consts/o.h"
 #include "libc/sysv/consts/ok.h"
-#include "libc/time/time.h"
+#include "libc/time.h"
 #include "third_party/musl/crypt.h"
 #include "third_party/musl/lockf.h"  /* declares _POSIX_VERSION */
 #    if defined(_POSIX_VERSION)  /* POSIX compliant */
@@ -138,7 +138,7 @@
 #include "libc/stdio/stdio.h"
 #include "libc/str/str.h"
 #include "libc/str/unicode.h"
-#include "libc/time/time.h"
+#include "libc/time.h"
 #    if WCHAR_MAX == 0xFFFFU /* UTF-16 wchar_t */
 #       define XSUM_WIN32_USE_WCHAR 1
 #    else

third_party/xxhash/cli/xsum_os_specific.c

@@ -31,7 +31,7 @@
 #include "libc/calls/weirdtypes.h"
 #include "libc/sysv/consts/s.h"
 #include "libc/sysv/consts/utime.h"
-#include "libc/time/time.h"   /* stat() / _stat64() */
+#include "libc/time.h"   /* stat() / _stat64() */
 
 /*
  * This file contains all of the ugly boilerplate to make xxhsum work across
@@ -60,7 +60,7 @@
 #include "libc/sysv/consts/fileno.h"
 #include "libc/sysv/consts/o.h"
 #include "libc/sysv/consts/ok.h"
-#include "libc/time/time.h"
+#include "libc/time.h"
 #include "third_party/musl/crypt.h"
 #include "third_party/musl/lockf.h"   /* isatty */
 #  define XSUM_IS_CONSOLE(stdStream) isatty(fileno(stdStream))
@@ -207,7 +207,7 @@ int main(int argc, const char* argv[])
 #include "libc/stdio/stdio.h"
 #include "libc/str/str.h"
 #include "libc/str/unicode.h"
-#include "libc/time/time.h"
+#include "libc/time.h"
 
 /*****************************************************************************
  *                       Unicode conversion tools

third_party/xxhash/tests/bench/timefn.h

@@ -30,8 +30,7 @@ extern "C" {
 #if defined(_MSC_VER)
 // MISSING #include <sys/utime.h>  /* utime */
 #else
-#include "libc/time/struct/utimbuf.h"
-#include "libc/time/time.h"      /* utime */
+#include "libc/time.h"      /* utime */
 #endif
 #include "libc/calls/calls.h"
 #include "libc/calls/struct/timespec.h"
@@ -40,8 +39,7 @@ extern "C" {
 #include "libc/sysv/consts/clock.h"
 #include "libc/sysv/consts/sched.h"
 #include "libc/sysv/consts/timer.h"
-#include "libc/time/struct/tm.h"
-#include "libc/time/time.h"         /* clock_t, clock, CLOCKS_PER_SEC */
+#include "libc/time.h"         /* clock_t, clock, CLOCKS_PER_SEC */
 
 
 

third_party/xxhash/tests/collisions/main.c

@@ -506,8 +506,7 @@ static inline int Filter_check(const Filter* bf, int bflog, uint64_t hash)
 #include "libc/sysv/consts/clock.h"
 #include "libc/sysv/consts/sched.h"
 #include "libc/sysv/consts/timer.h"
-#include "libc/time/struct/tm.h"
-#include "libc/time/time.h"   /* clock_t, clock, time_t, time, difftime */
+#include "libc/time.h"   /* clock_t, clock, time_t, time, difftime */
 
 void update_indicator(uint64_t v, uint64_t total)
 {