first re-commit.

pigpio-master/util/Findpigpio.cmake

@@ -0,0 +1,31 @@
+################################################################################
+### 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)