[Buildroot] [git commit branch/2023.02.x] package/olsr: fix build with gpsd >= 3.25

[Peter Korsgaard]

commit: https://git.buildroot.net/buildroot/commit/?id=40f8284dd627910603ce86cdc79691dd3df214f2
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/2023.02.x

Fix the following build failure with gpsd >= 3.25 raised since commit
3c7fece853f3def9a425eccc384b9dacb1010051:

In file included from src/configuration.h:50,
                 from src/configuration.c:46:
src/gpsdclient.h:64:8: error: redefinition of 'struct fixsource_t'
   64 | struct fixsource_t {
      |        ^~~~~~~~~~~
In file included from src/gpsdclient.h:49,
                 from src/configuration.h:50,
                 from src/configuration.c:46:
/tmp/instance-17/output-1/host/aarch64-buildroot-linux-gnu/sysroot/usr/include/gps.h:2714:8: note: originally defined here
 2714 | struct fixsource_t
      |        ^~~~~~~~~~~

Fixes:
 - http://autobuild.buildroot.org/results/47a619686bb47debd525c92aa7e14bee5c40ca9e

Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
(cherry picked from commit 4c32b3d9ff8727fd61dbf2d55105c2900f0d2dec)
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
---
 package/olsr/0006-build-patch-for-gpsd-3-25.patch | 31 +++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/package/olsr/0006-build-patch-for-gpsd-3-25.patch b/package/olsr/0006-build-patch-for-gpsd-3-25.patch
new file mode 100644
index 0000000000..c82bc1bb28
--- /dev/null
+++ b/package/olsr/0006-build-patch-for-gpsd-3-25.patch
@@ -0,0 +1,31 @@
+From 17d583258969c1d182361e0e168b3cad79ef64e6 Mon Sep 17 00:00:00 2001
+From: Rui Chen <rui at chenrui.dev>
+Date: Mon, 16 Jan 2023 18:35:32 -0500
+Subject: [PATCH] build: patch for gpsd 3.25
+
+Signed-off-by: Rui Chen <rui at chenrui.dev>
+[Retrieved from: https://github.com/OLSR/olsrd/pull/119]
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
+---
+ lib/pud/src/gpsdclient.h | 8 --------
+ 1 file changed, 8 deletions(-)
+
+diff --git a/lib/pud/src/gpsdclient.h b/lib/pud/src/gpsdclient.h
+index 061056b12..a51dd2211 100644
+--- a/lib/pud/src/gpsdclient.h
++++ b/lib/pud/src/gpsdclient.h
+@@ -60,14 +60,6 @@ struct GpsdConnectionState {
+     struct devconfig_t dev[MAXUSERDEVS];
+ };
+ 
+-/* describe a data source */
+-struct fixsource_t {
+-    char spec[PATH_MAX]; /* working space, will be modified */
+-    char *server; /* pointer into spec field */
+-    char *port; /* pointer into spec field */
+-    char *device; /* pointer into spec field */
+-};
+-
+ /**
+  * The gpsd daemon spec
+  */