date: code shrink

Since we don't have a working clock_settime(2) there's no point
in claiming to support the '-s' option.

Saves 96 bytes

3 files changed, 27 insertions, 7 deletions

diff --git a/coreutils/date.c b/coreutils/date.c
index b9b7fd2cb..37a47eb14 100644
--- a/coreutils/date.c
+++ b/coreutils/date.c
@@ -98,11 +98,15 @@
 //usage:#define date_full_usage "\n\n"
 //usage:       "Display time (using +FMT), or set time\n"
 //usage:        IF_NOT_LONG_OPTS(
+//usage:         IF_NOT_PLATFORM_MINGW32(
 //usage:     "\n        [-s] TIME       Set time to TIME"
+//usage:     )
 //usage:     "\n        -u              Work in UTC (don't convert to local time)"
 //usage:     "\n        -R              Output RFC-2822 compliant date string"
 //usage:        ) IF_LONG_OPTS(
+//usage:         IF_NOT_PLATFORM_MINGW32(
 //usage:     "\n        [-s,--set] TIME Set time to TIME"
+//usage:     )
 //usage:     "\n        -u,--utc        Work in UTC (don't convert to local time)"
 //usage:     "\n        -R,--rfc-2822   Output RFC-2822 compliant date string"
 //usage:        )
@@ -144,19 +148,30 @@
 
 enum {
         OPT_RFC2822   = (1 << 0), /* R */
+#if !ENABLE_PLATFORM_MINGW32
         OPT_SET       = (1 << 1), /* s */
         OPT_UTC       = (1 << 2), /* u */
         OPT_DATE      = (1 << 3), /* d */
         OPT_REFERENCE = (1 << 4), /* r */
         OPT_TIMESPEC  = (1 << 5) * ENABLE_FEATURE_DATE_ISOFMT, /* I */
         OPT_HINT      = (1 << 6) * ENABLE_FEATURE_DATE_ISOFMT, /* D */
+#else
+        OPT_SET       = (0),      /* s */
+        OPT_UTC       = (1 << 1), /* u */
+        OPT_DATE      = (1 << 2), /* d */
+        OPT_REFERENCE = (1 << 3), /* r */
+        OPT_TIMESPEC  = (1 << 4) * ENABLE_FEATURE_DATE_ISOFMT, /* I */
+        OPT_HINT      = (1 << 5) * ENABLE_FEATURE_DATE_ISOFMT, /* D */
+#endif
 };
 
 #if ENABLE_LONG_OPTS
 static const char date_longopts[] ALIGN1 =
                 "rfc-822\0"   No_argument       "R"
                 "rfc-2822\0"  No_argument       "R"
+#if !ENABLE_PLATFORM_MINGW32
                 "set\0"       Required_argument "s"
+#endif
                 "utc\0"       No_argument       "u"
         /*      "universal\0" No_argument       "u" */
                 "date\0"      Required_argument "d"
@@ -192,13 +207,25 @@ int date_main(int argc UNUSED_PARAM, char **argv)
         char *isofmt_arg = NULL;
 
         opt = getopt32long(argv, "^"
+#if !ENABLE_PLATFORM_MINGW32
                         "Rs:ud:r:"
+#else
+                        "Rud:r:"
+#endif
                         IF_FEATURE_DATE_ISOFMT("I::D:")
+#if !ENABLE_PLATFORM_MINGW32
                         "\0"
                         "d--s:s--d"
                         IF_FEATURE_DATE_ISOFMT(":R--I:I--R"),
+#else
+                        IF_FEATURE_DATE_ISOFMT("\0R--I:I--R"),
+#endif
                         date_longopts,
+#if !ENABLE_PLATFORM_MINGW32
                         &date_str, &date_str, &filename
+#else
+                        &date_str, &filename
+#endif
                         IF_FEATURE_DATE_ISOFMT(, &isofmt_arg, &fmt_str2dt)
         );
         argv += optind;
diff --git a/include/mingw.h b/include/mingw.h
index 568b1d846..2a543160a 100644
--- a/include/mingw.h
+++ b/include/mingw.h
@@ -354,7 +354,6 @@ struct tm *gmtime_r(const time_t *timep, struct tm *result);
 struct tm *localtime_r(const time_t *timep, struct tm *result);
 char *strptime(const char *s, const char *format, struct tm *tm);
 size_t mingw_strftime(char *buf, size_t max, const char *format, const struct tm *tm);
-int clock_settime(clockid_t clk_id, const struct timespec *tp);
 
 #define strftime mingw_strftime
 
diff --git a/win32/mingw.c b/win32/mingw.c
index 3a3b3cd63..8f4d155b8 100644
--- a/win32/mingw.c
+++ b/win32/mingw.c
@@ -1389,12 +1389,6 @@ size_t mingw_strftime(char *buf, size_t max, const char *format, const struct tm
         return ret;
 }
 
-int clock_settime(clockid_t clk_id UNUSED_PARAM, const struct timespec *tp UNUSED_PARAM)
-{
-        errno = EPERM;
-        return -1;
-}
-
 #undef access
 int mingw_access(const char *name, int mode)
 {