ggml : do not define GGML_USE_CUDA when building with GGML_BACKEND_DL (ggml-org#11211)

rgerganov · NeoZhangJianyu · commit 79a1705e19d6 · 2025-02-25T17:49:53.000+08:00
Build fails when using HIP and GGML_BACKEND_DL:
```
/usr/bin/ld: ../ggml/src/libggml.so: undefined reference to `ggml_backend_cuda_reg'
collect2: error: ld returned 1 exit status
```
This patch fixes this.
diff --git a/ggml/src/ggml-hip/CMakeLists.txt b/ggml/src/ggml-hip/CMakeLists.txt
@@ -70,7 +70,9 @@ ggml_add_backend_library(ggml-hip
                         )
 
 # TODO: do not use CUDA definitions for HIP
-target_compile_definitions(ggml PUBLIC GGML_USE_CUDA)
+if (NOT GGML_BACKEND_DL)
+    target_compile_definitions(ggml PUBLIC GGML_USE_CUDA)
+endif()
 
 add_compile_definitions(GGML_USE_HIP)
 

Original file line number	Diff line number	Diff line change
`@@ -70,7 +70,9 @@ ggml_add_backend_library(ggml-hip`
`70`	`70`	`)`
`71`	`71`
`72`	`72`	`# TODO: do not use CUDA definitions for HIP`
`73`		`-target_compile_definitions(ggml PUBLIC GGML_USE_CUDA)`
	`73`	`+if (NOT GGML_BACKEND_DL)`
	`74`	`+ target_compile_definitions(ggml PUBLIC GGML_USE_CUDA)`
	`75`	`+endif()`
`74`	`76`
`75`	`77`	`add_compile_definitions(GGML_USE_HIP)`
`76`	`78`