Fix wamrc build failure for 32bit non-x86 targets

Author: peter-tatrai

wamr-compiler/CMakeLists.txt

@@ -143,10 +143,12 @@ if (CMAKE_SIZEOF_VOID_P EQUAL 8)
       set (CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS "${CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS} -fPIC")
     endif ()
   else ()
-    add_definitions (-m32)
-    set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -m32")
-    set (CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -m32")
-  endif ()
+    # Add -m32 flag if compiling on 64-bit system for 32-bit x86 target
+    if (WAMR_BUILD_TARGET STREQUAL "X86_32")
+      add_definitions (-m32)
+      set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -m32")
+      set (CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -m32")
+    endif ()
 endif ()
 
 if (NOT CMAKE_BUILD_TYPE)