CMakeLists.txt: Minimal fixes, added GNUInstallDirs and fixed cmake config loc

Also set version for proper shared lib

Signed-off-by: Matthias Schoepfer <matthias.schoepfer@ithinx.io>

CMakeLists.txt

@@ -1,24 +1,29 @@
 cmake_minimum_required(VERSION 3.5)
 project(parson C)
 
+include (GNUInstallDirs)
+
+set(PARSON_VERSION 1.0.0)
 add_library(parson parson.c)
 target_include_directories(parson PUBLIC $<INSTALL_INTERFACE:include>)
 
 set_target_properties(parson PROPERTIES PUBLIC_HEADER "parson.h")
+set_target_properties(parson PROPERTIES VERSION ${PARSON_VERSION})
+set_target_properties(parson PROPERTIES SOVERSION ${PARSON_VERSION})
 
 install(
     TARGETS parson
     EXPORT parsonTargets
-    RUNTIME DESTINATION bin
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} COMPONENT shlib
-    LIBRARY DESTINATION lib
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-    ARCHIVE DESTINATION lib
+    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
-    PUBLIC_HEADER DESTINATION include
+    PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
 )
 
 install(
     EXPORT parsonTargets
     FILE parsonConfig.cmake
     NAMESPACE parson::
-    DESTINATION cmake
+    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
 )