Stub out precise clock structure from the overall flow of timers.c so that
there are no ifdefs in the middle of structures of the main code path
diff --git a/src/core/profiling/timers_preciseclock.h b/src/core/profiling/timers_preciseclock.h
new file mode 100644
index 0000000..c395967
--- /dev/null
+++ b/src/core/profiling/timers_preciseclock.h
@@ -0,0 +1,57 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef GRPC_CORE_PROFILING_TIMERS_PRECISECLOCK_H
+#define GRPC_CORE_PROFILING_TIMERS_PRECISECLOCK_H
+
+#include <grpc/support/time.h>
+#include <stdio.h>
+
+typedef struct grpc_precise_clock grpc_precise_clock;
+
+#ifdef GRPC_TIMERS_RDTSC
+#error RDTSC timers not currently supported
+#else
+struct grpc_precise_clock {
+  gpr_timespec clock;
+};
+static void grpc_precise_clock_now(grpc_precise_clock* clk) {
+  clk->clock = gpr_now();
+}
+static void grpc_precise_clock_print(const grpc_precise_clock* clk, FILE* fp) {
+  fprintf(fp, "%ld.%09d", clk->clock.tv_sec, clk->clock.tv_nsec);
+}
+#endif /* GRPC_TIMERS_RDTSC */
+
+
+#endif /* GRPC_CORE_PROFILING_TIMERS_PRECISECLOCK_H */