From 277f2ea3376370fa008f1abb90d473a0e0a64b7d Mon Sep 17 00:00:00 2001
From: John Klug <john.klug@multitech.com>
Date: Wed, 17 Nov 2021 12:17:08 -0600
Subject: Timebase patch to prevent gpsd having a 19.5 year error

---
 .../gpsd/gpsd-3.20/0008-timebase.patch             | 25 ++++++++++++++++++++++
 recipes-navigation/gpsd/gpsd_3.20.bb               |  3 ++-
 2 files changed, 27 insertions(+), 1 deletion(-)
 create mode 100644 recipes-navigation/gpsd/gpsd-3.20/0008-timebase.patch

diff --git a/recipes-navigation/gpsd/gpsd-3.20/0008-timebase.patch b/recipes-navigation/gpsd/gpsd-3.20/0008-timebase.patch
new file mode 100644
index 0000000..a61d6b0
--- /dev/null
+++ b/recipes-navigation/gpsd/gpsd-3.20/0008-timebase.patch
@@ -0,0 +1,25 @@
+#
+# gpsd 3.20 thinks that 2021 never happened, and we roll back the time 19
+# years.  Need to allow for 2021.
+#
+===============================================================================
+diff --git a/timebase.c b/timebase.c
+index 85cfd90..8e08b18 100644
+--- a/timebase.c
++++ b/timebase.c
+@@ -385,6 +385,7 @@ timespec_t gpsd_gpstime_resolv(struct gps_device_t *session,
+     /* sanity check week number, GPS epoch, against leap seconds
+      * Does not work well with regressions because the leap_sconds
+      * could be from the receiver, or from BUILD_LEAPSECONDS. */
++#ifdef YESTERDAY
+     if (0 < session->context->leap_seconds &&
+         19 > session->context->leap_seconds &&
+         2180 < week) {
+@@ -395,6 +396,7 @@ timespec_t gpsd_gpstime_resolv(struct gps_device_t *session,
+ 		 "GPS week confusion. Adjusted week %u for leap %d\n",
+                  week, session->context->leap_seconds);
+     }
++#endif
+ 
+     // gcc needs the (time_t)week to not overflow. clang got it right.
+     // if time_t is 32-bits, then still 2038 issues
diff --git a/recipes-navigation/gpsd/gpsd_3.20.bb b/recipes-navigation/gpsd/gpsd_3.20.bb
index 2ce8615..9f55416 100644
--- a/recipes-navigation/gpsd/gpsd_3.20.bb
+++ b/recipes-navigation/gpsd/gpsd_3.20.bb
@@ -4,7 +4,7 @@ LICENSE = "BSD"
 LIC_FILES_CHKSUM = "file://COPYING;md5=01764c35ae34d9521944bb6ab312af53"
 DEPENDS = "dbus dbus-glib ncurses python3 libusb1 chrpath-replacement-native pps-tools"
 PROVIDES = "virtual/gpsd"
-PR="m8b"
+PR="m8c"
 
 #TODO
 #the recipe generates python2 pygps package for Atmel based devices and python3 pygps package for TI based devices.
@@ -23,6 +23,7 @@ SRC_URI = "${SAVANNAH_GNU_MIRROR}/${BPN}/${BP}.tar.gz \
     file://0006-ubxtimelps.patch \
     file://0006-itu_r_tf_460_6.patch \
     file://0007-add-gll-vtg.patch \
+    file://0008-timebase.patch \
     file://gpsd-default \
     file://gpsd \
     file://gpsd_ubx_fixed.sh \
-- 
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