Fix cmake export to allow cross-compilation with sysroot

[aurelien-enchanted-tools]

• v1.7.15 and following

Hello,

Please fix the following:

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7aecd98..4a42d92 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -146,21 +146,21 @@ endif()
 configure_file("${CMAKE_CURRENT_SOURCE_DIR}/library_config/libcjson.pc.in"
     "${CMAKE_CURRENT_BINARY_DIR}/libcjson.pc" @ONLY)
 
-install(FILES cJSON.h DESTINATION "${CMAKE_INSTALL_FULL_INCLUDEDIR}/cjson")
-install (FILES "${CMAKE_CURRENT_BINARY_DIR}/libcjson.pc" DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}/pkgconfig")
+install(FILES cJSON.h DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/cjson")
+install (FILES "${CMAKE_CURRENT_BINARY_DIR}/libcjson.pc" DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
 install(TARGETS "${CJSON_LIB}"
     EXPORT "${CJSON_LIB}"
-    ARCHIVE DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}"
-    LIBRARY DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}"
-    RUNTIME DESTINATION "${CMAKE_INSTALL_FULL_BINDIR}"
-    INCLUDES DESTINATION "${CMAKE_INSTALL_FULL_INCLUDEDIR}"
+    ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+    LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+    RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
+    INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
 )
 if (BUILD_SHARED_AND_STATIC_LIBS)
-    install(TARGETS "${CJSON_LIB}-static" DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}")
+    install(TARGETS "${CJSON_LIB}-static" DESTINATION "${CMAKE_INSTALL_LIBDIR}")
 endif()
 if(ENABLE_TARGET_EXPORT)
     # export library information for CMake projects
-    install(EXPORT "${CJSON_LIB}" DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}/cmake/cJSON")
+    install(EXPORT "${CJSON_LIB}" DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/cJSON")
 endif()
 
 set_target_properties("${CJSON_LIB}"
@@ -193,19 +193,19 @@ if(ENABLE_CJSON_UTILS)
 
     install(TARGETS "${CJSON_UTILS_LIB}"
         EXPORT "${CJSON_UTILS_LIB}"
-        ARCHIVE DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}"
-        LIBRARY DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}"
-        RUNTIME DESTINATION "${CMAKE_INSTALL_FULL_BINDIR}"
-        INCLUDES DESTINATION "${CMAKE_INSTALL_FULL_INCLUDEDIR}"
+        ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+        LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+        RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
+        INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
     )
     if (BUILD_SHARED_AND_STATIC_LIBS)
-        install(TARGETS "${CJSON_UTILS_LIB}-static" DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}")
+        install(TARGETS "${CJSON_UTILS_LIB}-static" DESTINATION "${CMAKE_INSTALL_LIBDIR}")
     endif()
-    install(FILES cJSON_Utils.h DESTINATION "${CMAKE_INSTALL_FULL_INCLUDEDIR}/cjson")
-    install (FILES "${CMAKE_CURRENT_BINARY_DIR}/libcjson_utils.pc" DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}/pkgconfig")
+    install(FILES cJSON_Utils.h DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/cjson")
+    install (FILES "${CMAKE_CURRENT_BINARY_DIR}/libcjson_utils.pc" DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
     if(ENABLE_TARGET_EXPORT)
       # export library information for CMake projects
-      install(EXPORT "${CJSON_UTILS_LIB}" DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}/cmake/cJSON")
+      install(EXPORT "${CJSON_UTILS_LIB}" DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/cJSON")
     endif()
 
     set_target_properties("${CJSON_UTILS_LIB}"
@@ -226,7 +226,7 @@ if(ENABLE_TARGET_EXPORT)
     # Install package config files
     install(FILES ${PROJECT_BINARY_DIR}/cJSONConfig.cmake
         ${PROJECT_BINARY_DIR}/cJSONConfigVersion.cmake
-        DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}/cmake/cJSON")
+        DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/cJSON")
 endif()
 
 option(ENABLE_CJSON_TEST "Enable building cJSON test" ON)
diff --git a/library_config/cJSONConfig.cmake.in b/library_config/cJSONConfig.cmake.in
index 909f7a9..206566b 100644
--- a/library_config/cJSONConfig.cmake.in
+++ b/library_config/cJSONConfig.cmake.in
@@ -2,8 +2,8 @@
 set(CJSON_UTILS_FOUND @ENABLE_CJSON_UTILS@)
 
 # The include directories used by cJSON
-set(CJSON_INCLUDE_DIRS "@CMAKE_INSTALL_FULL_INCLUDEDIR@")
-set(CJSON_INCLUDE_DIR "@CMAKE_INSTALL_FULL_INCLUDEDIR@")
+set(CJSON_INCLUDE_DIRS "@CMAKE_INSTALL_INCLUDEDIR@")
+set(CJSON_INCLUDE_DIR "@CMAKE_INSTALL_INCLUDEDIR@")
 
 get_filename_component(_dir "${CMAKE_CURRENT_LIST_FILE}" PATH)