Merge pull request #121 from kljohann/cmake.doxy

repair doxygen support

CMakeLists.txt

@@ -276,9 +276,7 @@ elseif(CMAKE_CXX_COMPILER MATCHES "g\\+\\+")
 endif()
 
 add_subdirectory(src)
-if(BUILD_DOCS)
-  add_subdirectory(doc)
-endif()
+add_subdirectory(doc)
 if(BUILD_EMACSLISP)
   add_subdirectory(lisp)
 endif()

doc/CMakeLists.txt

@@ -1,3 +1,21 @@
+if (USE_DOXYGEN)
+  find_package(Doxygen)
+  if(NOT DOXYGEN_FOUND)
+    message(FATAL_ERROR "Could not find doxygen. Reference documentation cannot be built.")
+  endif()
+
+  configure_file(Doxyfile.in Doxyfile @ONLY)
+  add_custom_target(doxygen ALL
+    COMMAND ${DOXYGEN_EXECUTABLE} Doxyfile
+    SOURCES Doxyfile)
+endif(USE_DOXYGEN)
+
+########################################################################
+
+if(NOT BUILD_DOCS)
+  return()
+endif()
+
 set(info_files ledger.texi ledger3.texi)
 
 find_program(MAKEINFO makeinfo)

doc/Doxyfile.in

@@ -38,7 +38,7 @@ PROJECT_NUMBER         = 3.0
 # If a relative path is entered, it will be relative to the location 
 # where doxygen was started. If left blank the current directory will be used.
 
-OUTPUT_DIRECTORY       = %builddir%/doc
+OUTPUT_DIRECTORY       = @CMAKE_CURRENT_BINARY_DIR@
 
 # If the CREATE_SUBDIRS tag is set to YES, then doxygen will create 
 # 4096 sub-directories (in 2 levels) under the output directory of each output 
@@ -124,7 +124,7 @@ FULL_PATH_NAMES        = NO
 # If left blank the directory from which doxygen is run is used as the 
 # path to strip.
 
-STRIP_FROM_PATH        = %srcdir%/src/
+STRIP_FROM_PATH        = @PROJECT_SOURCE_DIR@/src/
 
 # The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of 
 # the path mentioned in the documentation of a class, which tells 
@@ -564,7 +564,7 @@ WARN_LOGFILE           =
 # directories like "/usr/src/myproject". Separate the files or directories 
 # with spaces.
 
-INPUT                  = src
+INPUT                  = @PROJECT_SOURCE_DIR@/src
 
 # This tag can be used to specify the character encoding of the source files 
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding, which is