turn off LTO for 32bit linux

Author: galabovaa

CMakeLists.txt

@@ -380,6 +380,12 @@ if (BUILD_CXX)
       message(STATUS "IPO / LTO is not supported at the moment when PDLP is using GPU: LTO disabled.")
   endif()
 
+  if (LINUX)
+    if(CMAKE_SIZEOF_VOID_P EQUAL 4)
+      set(CMAKE_INTERPROCEDURAL_OPTIMIZATION FALSE)
+      message(STATUS "IPO / LTO is not supported for 32-bit linux.")
+  endif()
+
 endif()