From 252bc9bcf5bc64f31940302fba386cacadbeb949 Mon Sep 17 00:00:00 2001
From: Johann Klähn <kljohann@gmail.com>
Date: Sat, 19 Jan 2013 13:22:59 +0100
Subject: only run doxygen once

To update the documentation run `ninja doxygen` or `make doxygen`.
---
 doc/CMakeLists.txt | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

(limited to 'doc/CMakeLists.txt')

diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index a812d9fe..7154be70 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -5,14 +5,22 @@ if (USE_DOXYGEN)
   endif()
 
   configure_file(Doxyfile.in Doxyfile @ONLY)
-  add_custom_target(doxygen ALL
+  add_custom_command(OUTPUT html/index.html
     COMMAND ${DOXYGEN_EXECUTABLE} Doxyfile
-    SOURCES Doxyfile)
+    DEPENDS Doxyfile
+    COMMENT "Building doxygen documentation")
+  add_custom_target(doxygen
+    COMMAND ${DOXYGEN_EXECUTABLE} Doxyfile
+    DEPENDS Doxyfile
+    COMMENT "Building doxygen documentation")
+  message("NOTE: Doxygen documentation will be built once. Use target doxygen to update.")
+  list(APPEND ledger_doc_files html/index.html)
 endif(USE_DOXYGEN)
 
 ########################################################################
 
 if(NOT BUILD_DOCS)
+  add_custom_target(doc ALL DEPENDS ${ledger_doc_files})
   return()
 endif()
 
-- 
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