Update installation procedure when building from sources.

Author: tjanczak

libraries/dl-streamer/docs/source/dev_guide/advanced_install/advanced_install_guide_compilation.rst

@@ -86,7 +86,7 @@ Clone and build GStreamer:
     git clone https://gitlab.freedesktop.org/gstreamer/gstreamer.git
 
     cd ~/gstreamer
-    git switch -c "1.24.12" "tags/1.24.12"
+    git switch -c "1.26.1" "tags/1.26.1"
     meson setup -Dexamples=disabled -Dtests=disabled -Dvaapi=enabled -Dgst-examples=disabled --buildtype=release --prefix=/opt/intel/dlstreamer/gstreamer --libdir=lib/ --libexecdir=bin/ build/
     ninja -C build
     sudo env PATH=~/python3venv/bin:$PATH meson install -C build/

libraries/dl-streamer/scripts/install_metapublish_dependencies.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 # ==============================================================================
-# Copyright (C) 2018-2024 Intel Corporation
+# Copyright (C) 2018-2025 Intel Corporation
 #
 # SPDX-License-Identifier: MIT
 # ==============================================================================
@@ -28,6 +28,12 @@ make install
 cd ..
 rm -rf librdkafka-1.5.0
 
+# remove symbolic links from previous installation
+if [[ -L "/usr/local/lib/libpaho-mqtt3c.so" ]]; then unlink /usr/local/lib/libpaho-mqtt3c.so; fi
+if [[ -L "/usr/local/lib/libpaho-mqtt3cs.so" ]]; then unlink /usr/local/lib/libpaho-mqtt3cs.so; fi
+if [[ -L "/usr/local/lib/libpaho-mqtt3as.so" ]]; then unlink /usr/local/lib/libpaho-mqtt3as.so; fi
+if [[ -L "/usr/local/lib/libpaho-mqtt3a.so" ]]; then unlink /usr/local/lib/libpaho-mqtt3a.so; fi
+
 curl -sSL https://github.com/eclipse/paho.mqtt.c/archive/v1.3.4.tar.gz | tar -xz
 cd paho.mqtt.c-1.3.4 || exit
 make