Updated include dir path

user/xrootd/module/CMakeLists.txt

@@ -1,8 +1,36 @@
+# Try to locate XRootD automatically
+find_path(XROOTD_INCLUDE_DIR XrdCl/XrdClFile.hh)
+find_library(XRDCL_LIB XrdCl)
+
+# If XRootD is not found, allow the user to specify the directory manually
+if (NOT XROOTD_INCLUDE_DIR OR NOT XRDCL_LIB)
+    message(WARNING "XRootD not found automatically. Please specify the XRootD directory using -DXROOTD_DIRECTORY=<path>.")
+
+    option(XROOTD_DIRECTORY "Path to the XRootD installation" "")
+
+    if (XROOTD_DIRECTORY)
+        # Set include and library paths from the user-defined option
+        set(XROOTD_INCLUDE_DIR ${XROOTD_DIRECTORY})
+        find_library(XRDCL_LIB XrdCl REQUIRED PATHS ${XROOTD_LIBRARY_DIR})
+
+        if (NOT EXISTS ${XROOTD_INCLUDE_DIR}/XrdCl/XrdClFile.hh)
+            message(FATAL_ERROR "Invalid XRootD directory: Header file not found in ${XROOTD_INCLUDE_DIR}.")
+        endif()
+    else()
+        message(FATAL_ERROR "XRootD not found and no directory specified. Please set -DXROOTD_DIRECTORY=<path>.")
+    endif()
+else()
+    message(STATUS "XRootD found automatically.")
+endif()
+
+# Add include directory and link library
+include_directories(${XROOTD_INCLUDE_DIR})
+link_directories(${XROOTD_LIBRARY_DIR})
+
+# Add sources and library
 include_directories(include)
 aux_source_directory(src MODULE_SRC)
 
-find_library(XRDCL_LIB XrdCl REQUIRED)
-
 add_library(${EUDAQ_MODULE} SHARED ${MODULE_SRC})
 target_link_libraries(${EUDAQ_MODULE} ${EUDAQ_CORE_LIBRARY} ${XRDCL_LIB})