Added cmake 'help-options' target to print out all available configure options

cherry-picked 5a0c5663ebf0b75503dfa6a60c01df07a29d3334

diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index 89db5d5..51d27cd 100644 (file)
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -618,3 +618,8 @@ endif(DBUS_DISABLE_CHECKS)
 MESSAGE(" ")
 
 INCLUDE(modules/CPackInstallConfig.cmake)
+
+add_custom_target(help-options
+    cmake -LH 
+    WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+)