Create Debian and RPM packages from CMakeLists

Packages must have a name, a version, a section, an architecture, a maintainer, a description (long and summary), dependencies
Shared libraries must be stripped, have soversion, version (debug symbols are found in separate packages), since MODULE is used instead of SHARED it works as a plugin library which is opened using dlopen-like functionality, see:  https://cmake.org/cmake/help/latest/command/add_library.html
Packages must have postin and postun scripts
Since it is not recommended to modify CMAKE_EXE_LINKER_FLAGS, cmake's path variables are used : https://discourse.cmake.org/t/how-do-i-replace-the-compiler-options-for-one-target/7815/5

tools/packages/systemd_scripts/oai-lte/postinst

@@ -0,0 +1,17 @@
+#!/bin/sh
+set -x
+
+mkdir -p /var/log/lte-log
+echo "LTE demon-reload:" >> /var/log/lte-log/lte-systemctl.log
+systemctl daemon-reload >> /var/log/lte-log/lte-systemctl.log  2>&1
+echo "LTE-SOFTMODEM enable:" >> /var/log/lte-log/lte-systemctl.log
+systemctl enable lte-softmodem.service >> /var/log/lte-log/lte-systemctl.log  2>&1
+echo "LTE-SOFTMODEM start:" >> /var/log/lte-log/lte-systemctl.log
+systemctl start lte-softmodem.service >> /var/log/lte-log/lte-systemctl.log  2>&1
+# Add ldconfig
+echo "Running ldconfig..." >> /var/log/lte-log/lte-systemctl.log
+if command -v ldconfig >> /var/log/lte-log/lte-systemctl.log 2>&1; then
+    ldconfig
+else
+    echo "Warning: ldconfig not found"
+fi

tools/packages/systemd_scripts/oai-lte/prerm

@@ -0,0 +1,15 @@
+#!/bin/sh
+set -x
+
+mkdir -p /var/log/lte-log
+echo "LTE-SOFTMODEM stop:" >> /var/log/lte-log/lte-systemctl.log
+systemctl stop lte-softmodem.service >> /var/log/lte-log/lte-systemctl.log  2>&1
+echo "LTE-SOFTMODEM disable:" >> /var/log/lte-log/lte-systemctl.log
+systemctl disable lte-softmodem.service >> /var/log/lte-log/lte-systemctl.log  2>&1
+# Then update library cache
+echo "Running ldconfig after uninstall..." >> /var/log/lte-log/lte-systemctl.log
+if command -v ldconfig >> /var/log/lte-log/lte-systemctl.log 2>&1; then
+    ldconfig
+else
+    echo "Warning: ldconfig not found"
+fi

tools/packages/systemd_scripts/oai-nr/postinst

@@ -0,0 +1,21 @@
+#!/bin/sh
+set -x
+
+mkdir -p /var/log/nr-log
+echo "NR demon-reload:" >> /var/log/nr-log/nr-systemctl.log
+systemctl daemon-reload >> /var/log/nr-log/nr-systemctl.log  2>&1
+echo "NR-CUUP enable:" >> /var/log/nr-log/nr-systemctl.log
+systemctl enable nr-cuup.service >> /var/log/nr-log/nr-systemctl.log  2>&1
+echo "NR-CUUP start:" >> /var/log/nr-log/nr-systemctl.log
+systemctl start nr-cuup.service >> /var/log/nr-log/nr-systemctl.log  2>&1
+echo "NR-SOFTMODEM enable:" >> /var/log/nr-log/nr-systemctl.log
+systemctl enable nr-softmodem.service >> /var/log/nr-log/nr-systemctl.log  2>&1
+echo "NR-SOFTMODEM start:" >> /var/log/nr-log/nr-systemctl.log
+systemctl start nr-softmodem.service >> /var/log/nr-log/nr-systemctl.log  2>&1
+# Add ldconfig
+echo "Running ldconfig..." >> /var/log/nr-log/nr-systemctl.log
+if command -v ldconfig >> /var/log/nr-log/nr-systemctl.log 2>&1; then
+    ldconfig
+else
+    echo "Warning: ldconfig not found"
+fi

tools/packages/systemd_scripts/oai-nr/prerm

@@ -0,0 +1,19 @@
+#!/bin/sh
+set -x
+
+mkdir -p /var/log/nr-log
+echo "NR-CUUP stop:" >> /var/log/nr-log/nr-systemctl.log
+systemctl stop nr-cuup.service >> /var/log/nr-log/nr-systemctl.log  2>&1
+echo "NR-CUUP disable:" >> /var/log/nr-log/nr-systemctl.log
+systemctl disable nr-cuup.service >> /var/log/nr-log/nr-systemctl.log  2>&1
+echo "NR-SOFTMODEM stop:" >> /var/log/nr-log/nr-systemctl.log
+systemctl stop nr-softmodem.service >> /var/log/nr-log/nr-systemctl.log  2>&1
+echo "NR-SOFTMODEM disable:" >> /var/log/nr-log/nr-systemctl.log
+systemctl disable nr-softmodem.service >> /var/log/nr-log/nr-systemctl.log  2>&1
+# Then update library cache
+echo "Running ldconfig after uninstall..." >> /var/log/nr-log/nr-systemctl.log
+if command -v ldconfig >> /var/log/nr-log/nr-systemctl.log 2>&1; then
+    ldconfig
+else
+    echo "Warning: ldconfig not found"
+fi

tools/packages/systemd_scripts/postinst

@@ -0,0 +1,12 @@
+#!/bin/sh
+set -e
+mkdir -p /var/log/oai-log
+echo "Running ldconfig after package installation/upgrade" 2>&1
+if command -v ldconfig >> /var/log/oai-log/oai.log 2>&1; then
+    ldconfig
+else
+    echo "Warning: ldconfig not found"
+fi
+
+
+exit 0

tools/packages/systemd_scripts/prerm

@@ -0,0 +1,27 @@
+#!/bin/sh
+set -e
+
+mkdir -p /var/log/oai-log
+echo "Running ldconfig after package removal" 2&>1
+# Only run ldconfig if this is not an apt purge
+if [ -n "$1" ]; then
+  if [ "$1" != "purge" ]; then
+    echo "Updating linker cache..."
+    echo "Running ldconfig after package installation/upgrade" 2>&1
+    if command -v ldconfig >> /var/log/oai-log/oai.log 2>&1; then
+        ldconfig
+    else
+        echo "Warning: ldconfig not found"
+    fi
+  fi
+else
+  # Likely running under RPM/dnf: just update linker cache
+  echo "Updating linker cache..."
+  echo "Running ldconfig after package installation/upgrade" 2>&1
+  if command -v ldconfig >> /var/log/oai-log/oai.log 2>&1; then
+      ldconfig
+  else
+      echo "Warning: ldconfig not found"
+  fi
+fi
+exit 0