ENH: Make conditional compilations

Hide unused options when they are not
relevant for a build.

Utilities/Doxygen/CMakeLists.txt

@@ -56,14 +56,14 @@ set( ITK_DOXYGEN_OUTPUT_DIR ${ITK_BINARY_DIR}/Utilities/Doxygen )
 
 set( ITK_DOXYGEN_DIAGRAMS YES )
 
-option( ITK_DOXYGEN_HTML "Doxygen will generate HTML Output" ON )
-option( ITK_DOXYGEN_DOCSET "Doxygen will generate additional index files for Xcode 3" OFF )
-option( ITK_DOXYGEN_CHM "Doxygen will generate Microsoft HTML help" OFF )
-option( ITK_DOXYGEN_QHP "Doxygen will generate Qt Compressed Help" OFF )
-option( ITK_DOXYGEN_ECLIPSEHELP "Doxygen will generate Eclipse help plugin" OFF )
-option( ITK_DOXYGEN_LATEX "Doxygen will generate LaTeX output" OFF )
-option( ITK_DOXYGEN_RTF "Doxygen will generate RTF output optimized for Word 97" OFF )
-option( ITK_DOXYGEN_XML "Doxygen will generate XML output" OFF )
+cmake_dependent_option( ITK_DOXYGEN_HTML "Doxygen will generate HTML Output" ON "ITK_BUILD_DOCUMENTATION" OFF)
+cmake_dependent_option( ITK_DOXYGEN_DOCSET "Doxygen will generate additional index files for Xcode 3" OFF "ITK_BUILD_DOCUMENTATION" OFF)
+cmake_dependent_option( ITK_DOXYGEN_CHM "Doxygen will generate Microsoft HTML help" OFF "ITK_BUILD_DOCUMENTATION" OFF)
+cmake_dependent_option( ITK_DOXYGEN_QHP "Doxygen will generate Qt Compressed Help" OFF "ITK_BUILD_DOCUMENTATION" OFF)
+cmake_dependent_option( ITK_DOXYGEN_ECLIPSEHELP "Doxygen will generate Eclipse help plugin" OFF "ITK_BUILD_DOCUMENTATION" OFF)
+cmake_dependent_option( ITK_DOXYGEN_LATEX "Doxygen will generate LaTeX output" OFF "ITK_BUILD_DOCUMENTATION" OFF)
+cmake_dependent_option( ITK_DOXYGEN_RTF "Doxygen will generate RTF output optimized for Word 97" OFF "ITK_BUILD_DOCUMENTATION" OFF)
+cmake_dependent_option( ITK_DOXYGEN_XML "Doxygen will generate XML output" OFF "ITK_BUILD_DOCUMENTATION" OFF)
 
 mark_as_advanced( ITK_DOXYGEN_HTML
   ITK_DOXYGEN_DOCSET

Wrapping/Generators/CMakeLists.txt

@@ -29,7 +29,7 @@ endmacro()
 
 ###############################################################################
 # ccache management. This option is shared by most of generators, so put it here.
-option(ITK_USE_CCACHE "Use ccache to cache swig/castxml/... output and speedup the rebuild." OFF)
+cmake_dependent_option(ITK_USE_CCACHE "Use ccache to cache swig/castxml/... output and speedup the rebuild." OFF ITK_WRAP_PYTHON OFF)
 mark_as_advanced(ITK_USE_CCACHE)
 if(ITK_USE_CCACHE)
   find_program(CCACHE_EXECUTABLE NAMES ccache-swig ccache DOC "ccache executable.")
@@ -48,7 +48,7 @@ else()
   else()
     set(${module_prefix}_WRAP_CASTXML ON CACHE BOOL "Build xml files.")
   endif()
-  option(${module_prefix}_WRAP_SWIGINTERFACE "Build swig interfaces." ON)
+  cmake_dependent_option(${module_prefix}_WRAP_SWIGINTERFACE "Build swig interfaces." ON ITK_WRAP_PYTHON OFF)
   mark_as_advanced(${module_prefix}_WRAP_CASTXML ${module_prefix}_WRAP_SWIGINTERFACE)
 endif()
 
@@ -63,7 +63,7 @@ foreach(lang ${_candidate_generators})
 
   # add the language to the options
   if(NOT DEFINED ${module_prefix}_WRAP_${lang_upper})
-    option(${module_prefix}_WRAP_${lang_upper} "Build swig ${lang} wrapper support." OFF)
+    cmake_dependent_option(${module_prefix}_WRAP_${lang_upper} "Build swig ${lang} wrapper support." OFF ITK_WRAP_PYTHON OFF)
   endif()
   # add the language to the list, if the user have turn it on, and include
   # the subdirectory