cmake: Add rules to build documentation and translations.

This partially resolves issue #2.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 707a1272fc)

CMakeLists.txt

@@ -45,6 +45,13 @@ tde_setup_paths( )
 # option( WITH_LIBVISUAL "Enable libvisual support" OFF )
 
 
+##### user requested modules
+
+option( BUILD_ALL "Build all" ON                     )
+option( BUILD_DOC "Build documentation" ${BUILD_ALL} )
+option( BUILD_TRANSLATIONS "Build translations" ${BUILD_ALL} )
+
+
 ##### configure checks ##########################
 
 include( ConfigureChecks.cmake )
@@ -64,6 +71,8 @@ set( CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -Wl,--no-undefined"
 ##### source directories ########################
 
 add_subdirectory( src )
+tde_conditional_add_subdirectory( BUILD_DOC doc )
+tde_conditional_add_subdirectory( BUILD_TRANSLATIONS po )
 
 
 ##### write configure files #####################

doc/CMakeLists.txt

@@ -0,0 +1 @@
+tde_auto_add_subdirectories( )

doc/en/CMakeLists.txt

@@ -0,0 +1 @@
+tde_create_handbook( DESTINATION d3lphin )

po/CMakeLists.txt

@@ -0,0 +1,6 @@
+# build translations if some are already available
+
+file( GLOB _srcs RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} *.po )
+if( _srcs )
+  tde_create_translation( LANG auto OUTPUT_NAME d3lphin )
+endif( )