[Offload] Fix CMake detection when it is not found (#90729)

Summary: This variable could be unset if not found or when building standalone. We should check for that and set it to true or false. Fixes: #90708
llvm · May 1, 2024 · e312f07 · e312f07
1 parent 0647b2a
commit e312f07
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/offload/CMakeLists.txt b/offload/CMakeLists.txt
@@ -302,7 +302,12 @@ endif()
 
 pythonize_bool(LIBOMPTARGET_OMPT_SUPPORT)
 
-set(LIBOMPTARGET_GPU_LIBC_SUPPORT ${LLVM_LIBC_GPU_BUILD} CACHE BOOL
+if(${LLVM_LIBC_GPU_BUILD})
+  set(LIBOMPTARGET_HAS_LIBC TRUE)
+else()
+  set(LIBOMPTARGET_HAS_LIBC FALSE)
+endif()
+set(LIBOMPTARGET_GPU_LIBC_SUPPORT ${LIBOMPTARGET_HAS_LIBC} CACHE BOOL
     "Libomptarget support for the GPU libc")
 pythonize_bool(LIBOMPTARGET_GPU_LIBC_SUPPORT)