Hi, ECL community

I met some problems when compiling usocket on ECL 9.4.0, below is the error outputs:

============= ;;; gcc -g -O2 -fPIC -fno-common -D_THREAD_SAFE -Ddarwin -O "-I/ Users/binghe/include/" -w -c "/private/var/folders/3x/ 3xMxiHaQGSqRfjv9Z200B++++TI/-Tmp-/ECLINIThcmJG7.c" -o "/private/var/ folders/3x/3xMxiHaQGSqRfjv9Z200B++++TI/-Tmp-/ECLINIThcmJG7.o" ;;; Note: Invoking external command: Undefined symbols: "_cl_alloc_atomic", referenced from: _L2fdset_alloc in sbcl.o _L7get_host_name in sbcl.o ld: symbol(s) not found collect2: ld returned 1 exit status (SYSTEM "gcc -o "/Volumes/User/Lisp/usocket/trunk/backend/sbcl.fas" - L"/Users/binghe/lib/" "/private/var/folders/3x/3xMxiHaQGSqRfjv9Z200B ++++TI/-Tmp-/ECLINIThcmJG7.o" "/Volumes/User/Lisp/usocket/trunk/ backend/sbcl.o" -bundle -lecl -lpthread -lm ") returned non- zero value 1 ;;; gcc -o "/Volumes/User/Lisp/usocket/trunk/backend/sbcl.fas" -L"/ Users/binghe/lib/" "/private/var/folders/3x/3xMxiHaQGSqRfjv9Z200B+++ +TI/-Tmp-/ECLINIThcmJG7.o" "/Volumes/User/Lisp/usocket/trunk/backend/ sbcl.o" -bundle -lecl -lpthread -lm Broken at SI:BYTECODES.Available restarts: 1. (CONTINUE) Continues anyway. 2. (TRY-RECOMPILING) Try recompiling sbcl 3. (RETRY) Retry performing #<ASDF:COMPILE-OP NIL 29930936> on #<ASDF:CL-SOURCE-FILE "sbcl" "usocket" 29830384>. 4. (ACCEPT) Continue, treating #<ASDF:COMPILE-OP NIL 29930936> on #<ASDF:CL-SOURCE-FILE "sbcl" "usocket" 29830384> as having been successful. =============

I think following code in usocket break above build:

(defun fdset-alloc () (ffi:c-inline () () :pointer-void "cl_alloc_atomic(sizeof(fd_set))" :one-liner t))

It seems that the function "cl_alloc_atomic" doesn't exist anymore.

1. What should we (usocket) do instead in ECL 9.4.0? 2. Is there anyway to detect the exist of "cl_alloc_atomic" in any ECL versions? (ECL doesn't put any version information in CL *features*, and we (usocket) want to support more ECL versions as many as possible)

Regards,

Chun Tian (binghe)