volcano0dr commented on PR #260:
URL: 
https://github.com/apache/incubator-teaclave-sgx-sdk/pull/260#issuecomment-1454751134

   > I understand this issue has been closed but I needed more clarity on this 
one. I tried including `-Wl,--whole-archive -lsgx_uswitchless 
-Wl,--no-whole-archive` in my file with main() however I run into following 
error: `= note: 
/opt/intel/sgxsdk/lib64/libsgx_uswitchless.a(sl_urts_loader_untrusted.o): In 
function `urts_loader_t::urts_loader_t()': 
sl_urts_loader_untrusted.cpp:(.text._ZN13urts_loader_tC2Ev+0x8): undefined 
reference to `sgx_set_switchless_itf' 
/opt/intel/sgxsdk/lib64/libsgx_uswitchless.a(sl_workers_untrusted.o): In 
function `tworker_process_calls': 
sl_workers_untrusted.c:(.text.tworker_process_calls+0x21): undefined reference 
to `sl_run_switchless_tworker' 
/opt/intel/sgxsdk/lib64/libsgx_uswitchless.a(sgx_ecall_switchless_untrusted.o): 
In function `init_tswitchless': 
sgx_ecall_switchless_untrusted.c:(.text.init_tswitchless+0x10): undefined 
reference to `sl_init_switchless' collect2: error: ld returned 1 exit status ` 
Looks like it cannot find sgx_urts or other files.
  Not sure what I am missing here. Apologies in advance if this is not the 
right place to post this.
   
   You can refer to 
[switchless](https://github.com/apache/incubator-teaclave-sgx-sdk/tree/master/samplecode/switchless)
 example


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