Fix check for doxygen version.

diff --git a/buildtools/Cmake/GenerateDoc.cmake b/buildtools/Cmake/GenerateDoc.cmake
index d4f482c..a25e09e 100644 (file)
--- a/buildtools/Cmake/GenerateDoc.cmake
+++ b/buildtools/Cmake/GenerateDoc.cmake
@@ -16,14 +16,8 @@ if(DOXYGEN_PATH)
     )
 
   execute_process(COMMAND ${DOXYGEN_PATH}/doxygen --version OUTPUT_VARIABLE DOXYGEN_VERSION )
-  string(REGEX MATCH "^[0-9]" DOXYGEN_MAJOR_VERSION "${DOXYGEN_VERSION}")
-  string(REGEX MATCH "^[0-9].[0-9]" DOXYGEN_MINOR_VERSION "${DOXYGEN_VERSION}")
-  string(REGEX MATCH "^[0-9].[0-9].[0-9]" DOXYGEN_PATCH_VERSION "${DOXYGEN_VERSION}")
-  string(REGEX REPLACE "^${DOXYGEN_MINOR_VERSION}." "" DOXYGEN_PATCH_VERSION "${DOXYGEN_PATCH_VERSION}")
-  string(REGEX REPLACE "^${DOXYGEN_MAJOR_VERSION}." "" DOXYGEN_MINOR_VERSION "${DOXYGEN_MINOR_VERSION}")
-  message(STATUS "Doxygen version : ${DOXYGEN_MAJOR_VERSION}.${DOXYGEN_MINOR_VERSION}.${DOXYGEN_PATCH_VERSION}")
-
-  if(DOXYGEN_MAJOR_VERSION STRLESS "2" AND DOXYGEN_MINOR_VERSION STRLESS "8")
+
+  if(DOXYGEN_VERSION VERSION_LESS "1.8")
     ADD_CUSTOM_TARGET(error_doxygen
       COMMAND ${CMAKE_COMMAND} -E echo "Doxygen must be at least version 1.8 to generate documentation"
       COMMAND false