first re-commit.

pigpio-master/util/Findpigpio.cmake

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+################################################################################
+### Find the pigpio shared libraries.
+################################################################################
+
+# Find the path to the pigpio includes.
+find_path(pigpio_INCLUDE_DIR 
+	NAMES pigpio.h pigpiod_if.h pigpiod_if2.h
+	HINTS /usr/local/include)
+	
+# Find the pigpio libraries.
+find_library(pigpio_LIBRARY 
+	NAMES libpigpio.so
+	HINTS /usr/local/lib)
+find_library(pigpiod_if_LIBRARY 
+	NAMES libpigpiod_if.so
+	HINTS /usr/local/lib)
+find_library(pigpiod_if2_LIBRARY 
+	NAMES libpigpiod_if2.so
+	HINTS /usr/local/lib)
+    
+# Set the pigpio variables to plural form to make them accessible for 
+# the paramount cmake modules.
+set(pigpio_INCLUDE_DIRS ${pigpio_INCLUDE_DIR})
+set(pigpio_INCLUDES     ${pigpio_INCLUDE_DIR})
+
+# Handle REQUIRED, QUIET, and version arguments 
+# and set the <packagename>_FOUND variable.
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(pigpio 
+    DEFAULT_MSG 
+    pigpio_INCLUDE_DIR pigpio_LIBRARY pigpiod_if_LIBRARY pigpiod_if2_LIBRARY)

pigpio-master/util/pigpiod.service

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+[Unit]
+Description=Pigpio daemon
+
+[Service]
+Type=forking
+PIDFile=pigpio.pid
+ExecStart=/usr/bin/pigpiod
+
+[Install]
+WantedBy=multi-user.target

pigpio-master/util/readme.md

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+This folder provides utility files for the pigpio library.
+
+### pigpiod
+
+`pigpiod` is a script that allows to run pigpiod as a Linux service with root privileges.
+The advantage of running pigpiod as a service is that pigpiod can be automatically launched on system startup.
+To automatically start pigpiod as a service, do the following:
+
++ Copy `pigpiod` from this directory to `/etc/init.d/`.
+
++ Make it executable: 
+  ```
+  sudo chmod +x /etc/init.d/pigpiod
+  ```
+
++ Tell update-rc.d to automatically start the pigpiod service on system startup:
+  ```
+  sudo update-rc.d pigpiod defaults
+  ```
+  
++ Now, you can start, stop, and restart pigpiod using
+  ```
+  sudo service pigpiod start
+  sudo service pigpiod stop
+  sudo service pigpiod restart
+  ```
+
+
+### Findpigpio.cmake
+
+`Findpigpio.cmake` is a script used by CMake to find out where the pigpio header and library files are located.