Make doxygen config work with newer cmake versions

Author: tmadlener

.github/workflows/linux.yml

@@ -23,7 +23,7 @@ jobs:
         run: |
           mkdir build
           cd build
-          cmake -GNinja -C ${ILCSOFT}/ILCSoft.cmake -DCMAKE_CXX_FLAGS=" -fdiagnostics-color=always " ..
+          cmake -GNinja -C ${ILCSOFT}/ILCSoft.cmake -DCMAKE_CXX_FLAGS=" -fdiagnostics-color=always " -DINSTALL_DOC=ON ..
           ninja -k0
           ctest --output-on-failure
           ninja install

doc/CMakeLists.txt

@@ -14,6 +14,15 @@ SET( DOC_BIN_DIR "${PROJECT_BINARY_DIR}/docbuild" )
 
 SET( DOX_INPUT ../source )
 
+FILE(GLOB DOXYGEN_SOURCES
+        ../source/include/ANN/*
+        ../source/include/mille/*
+        ../source/include/*
+        ../source/ann/*
+        ../source/src/mille/*
+        ../source/src/*
+    )
+
 # custom command to build documentation
 ADD_CUSTOM_COMMAND(
     OUTPUT  "${DOC_BIN_DIR}/html/index.html"
@@ -26,12 +35,7 @@ ADD_CUSTOM_COMMAND(
     WORKING_DIRECTORY "${DOC_SRC_DIR}"
     COMMENT "Building API Documentation..."
     DEPENDS Doxyfile CMakeLists.txt
-        ../source/include/ANN/*
-        ../source/include/mille/*
-        ../source/include/*
-        ../source/ann/*
-        ../source/src/mille/*
-        ../source/src/*
+            ${DOXYGEN_SOURCES}
 )
 
 ADD_CUSTOM_TARGET( doc DEPENDS "${DOC_BIN_DIR}/html/index.html" )