CMakeList modified for automatic compile of Zoltan

cmake/zoltanInstallCheck.cmake

@@ -0,0 +1,44 @@
+# Macro to check for Zoltan installation and build it if needed
+# Usage: zoltan_find_or_build(ZOLTAN_DIR)
+# Returns: ZOLTAN_INCLUDE_DIR, ZOLTAN_LIBRARY
+
+macro(zoltan_find_or_build ZOLTAN_DIR)
+    # Set the Zoltan directory
+    set(ZOLTAN_PREFIX "${ZOLTAN_DIR}" CACHE STRING "Zoltan install directory")
+    message(STATUS "Zoltan install directory is ${ZOLTAN_PREFIX}")
+
+    # Check if the Zoltan library is already built
+    find_path(ZOLTAN_INCLUDE_DIR zoltan.h PATHS "${ZOLTAN_PREFIX}/include")
+    message(STATUS "Zoltan include path: ${ZOLTAN_INCLUDE_DIR}")
+
+    find_library(ZOLTAN_LIBRARY zoltan PATHS "${ZOLTAN_PREFIX}/lib")
+    message(STATUS "Zoltan lib path: ${ZOLTAN_LIBRARY}")
+    
+    # Check if Zoltan library exists, if not compile it using buildlib script
+    if(NOT ZOLTAN_LIBRARY)
+        message(STATUS "Zoltan library not found. Compiling from source using buildlib script...")
+
+        # Execute the buildlib bash script
+        execute_process(
+            COMMAND bash ${ZOLTAN_PREFIX}/buildlib
+            WORKING_DIRECTORY ${ZOLTAN_PREFIX}
+            RESULT_VARIABLE ZOLTAN_BUILD_RESULT
+            OUTPUT_VARIABLE ZOLTAN_BUILD_OUTPUT
+            ERROR_VARIABLE ZOLTAN_BUILD_ERROR
+        )
+
+        if(NOT ZOLTAN_BUILD_RESULT EQUAL 0)
+            message(FATAL_ERROR "Failed to build Zoltan library using buildlib script. Error: ${ZOLTAN_BUILD_ERROR}")
+        endif()
+
+        # Try to find the library again after building
+        find_library(ZOLTAN_LIBRARY zoltan PATHS "${ZOLTAN_PREFIX}/lib" NO_DEFAULT_PATH)
+        find_path(ZOLTAN_INCLUDE_DIR zoltan.h PATHS "${ZOLTAN_PREFIX}/include" NO_DEFAULT_PATH)
+
+        if(NOT ZOLTAN_LIBRARY)
+            message(FATAL_ERROR "Failed to locate Zoltan library after building")
+        endif()
+
+        message(STATUS "Successfully built Zoltan library at ${ZOLTAN_LIBRARY}")
+    endif()
+endmacro()