undefined reference issue while building "file" sample with uvwasi

[IceCY]

When I am trying to build file sample with unwasi as libc, the link process is failed because of the undefined reference issue in unwasi. The following is the error information:

/usr/bin/ld: libvmlib.a(uvwasi.c.o): in function `uvwasi__get_filestat_set_times':
/xxx/wasm-micro-runtime/samples/file/build/_deps/uvwasi-src/src/uvwasi.c:77: undefined reference to `uv_fs_fstat'
/usr/bin/ld: /xxx/wasm-micro-runtime/samples/file/build/_deps/uvwasi-src/src/uvwasi.c:79: undefined reference to `uv_fs_lstat'
/usr/bin/ld: /xxx/wasm-micro-runtime/samples/file/build/_deps/uvwasi-src/src/uvwasi.c:82: undefined reference to `uv_fs_req_cleanup'
/usr/bin/ld: /xxx/wasm-micro-runtime/samples/file/build/_deps/uvwasi-src/src/uvwasi.c:87: undefined reference to `uv_fs_req_cleanup'
/usr/bin/ld: libvmlib.a(uvwasi.c.o): in function `uvwasi__lseek':
......

The cmake command I used is as following:

 cmake -DWAMR_BUILD_FAST_JIT=1  -DWAMR_BUILD_LAZY_JIT=0  -DCMAKE_BUILD_TYPE=Debug -DWAMR_DISABLE_HW_BOUND_CHECK=1 -DWAMR_BUILD_LIBC_UVWASI=1  ..

[wenyongh]

Hi, please add ${UV_A_LIBS} to the link list of iwasm:

diff --git a/samples/file/src/CMakeLists.txt b/samples/file/src/CMakeLists.txt
index 2bc3bec6..96de1a9b 100644
--- a/samples/file/src/CMakeLists.txt
+++ b/samples/file/src/CMakeLists.txt
@@ -85,7 +85,7 @@ check_pie_supported()
 set_target_properties (iwasm PROPERTIES POSITION_INDEPENDENT_CODE ON)

 if (APPLE)
-  target_link_libraries (iwasm vmlib -lm -ldl -lpthread)
+  target_link_libraries (iwasm vmlib ${UV_A_LIBS} -lm -ldl -lpthread)
 else ()
-  target_link_libraries (iwasm vmlib -lm -ldl -lpthread -lrt)
+  target_link_libraries (iwasm vmlib ${UV_A_LIBS} -lm -ldl -lpthread -lrt)
 endif ()