compiled newlib, need to hook up the system calls

rocklibc/src/_tzcode/_PDCLIB_gmtsub.c

@@ -0,0 +1,43 @@
+/* _PDCLIB_gmtsub( struct state const *, time_t const *, int_fast32_t, struct tm * )
+
+   This file is part of the Public Domain C Library (PDCLib).
+   Permission is granted to use, modify, and / or redistribute at will.
+*/
+
+#ifndef REGTEST
+
+#include "pdclib/_PDCLIB_tzcode.h"
+
+/* gmtsub is to gmtime as localsub is to localtime. */
+struct tm * _PDCLIB_gmtsub( struct state const * sp, time_t const * timep, int_fast32_t offset, struct tm * tmp )
+{
+    struct tm * result;
+
+    result = _PDCLIB_timesub( timep, offset, &_PDCLIB_gmtmem, tmp );
+
+#ifdef TM_ZONE
+    /* Could get fancy here and deliver something such as
+       "+xx" or "-xx" if offset is non-zero,
+       but this is no time for a treasure hunt.
+    */
+    tmp->TM_ZONE = ( (char *)( offset ? wildabbr : &_PDCLIB_gmtmem ? _PDCLIB_gmtptr.chars : gmt ) );
+#endif
+
+    return result;
+}
+
+#endif
+
+#ifdef TEST
+
+#include "_PDCLIB_test.h"
+
+int main( void )
+{
+#ifndef REGTEST
+#endif
+
+    return TEST_RESULTS;
+}
+
+#endif