uhd: Remove usage of time_t (except when required)

The C/C++ standards don't define what time_t is, only that it is
arithmetic (and real for C11, and integral for C++). It should not be
used in portable software and is only used as the return value for some
libc calls.
A common definition for time_t is int64_t, so we'll switch to that
permanently in our own APIs. System APIs will of course stick with
time_t.

1 files changed, 1 insertions, 1 deletions

diff --git a/host/lib/usrp/gps_ctrl.cpp b/host/lib/usrp/gps_ctrl.cpp
index 67803bec6..717654151 100644
--- a/host/lib/usrp/gps_ctrl.cpp
+++ b/host/lib/usrp/gps_ctrl.cpp
@@ -372,7 +372,7 @@ private:
     return gps_time; //keep gcc from complaining
   }
 
-  time_t get_epoch_time(void) {
+  int64_t get_epoch_time(void) {
       return (get_time() - from_time_t(0)).total_seconds();
   }