fix(client,main): Add -lcurses if (= %{ocaml-config:system} macosx)

Author: erikmd

src/main/dune

@@ -57,12 +57,12 @@
 (rule
   (targets linking_main.sexp)
   (action  (with-stdout-to %{targets}
-    (run ./linking_flags.sh %{env:LINKING_MODE=dynamic} laolao_stubs threads camlrun))))
+    (run ./linking_flags.sh %{env:LINKING_MODE=dynamic} %{ocaml-config:system} laolao_stubs threads camlrun))))
 (rule
   (targets linking_client.sexp)
   (action  (with-stdout-to %{targets}
-    (run ./linking_flags.sh %{env:LINKING_MODE=dynamic} threads camlrun))))
+    (run ./linking_flags.sh %{env:LINKING_MODE=dynamic} %{ocaml-config:system} threads camlrun))))
 (rule
   (targets linking_server.sexp)
   (action  (with-stdout-to %{targets}
-    (run ./linking_flags.sh %{env:LINKING_MODE=dynamic} laolao_stubs threadsnat))))
+    (run ./linking_flags.sh %{env:LINKING_MODE=dynamic} -- laolao_stubs threadsnat))))

src/main/linking_flags.sh

@@ -7,16 +7,28 @@ set -ue
 
 LC_ALL=C
 
+help_exit() {
+    echo "Usage: $0 dynamic|static linux|macosx [extra-libs]" >&2
+    exit 2
+}
+
+[ $# -lt 2 ] && help_exit
+
 echo ";; generated by $0"
 
 case "$1" in
     dynamic) echo "()"; exit 0;;
     static) ;;
-    *) echo "Invalid linking mode '$1'. Usage: $0 dynamic|static [extra-libs]" >&2; exit 2
+    *) echo "Invalid linking mode '$1'."; help_exit
 esac
 
 shift
-EXTRA_LIBS="$*"
+case "$1" in
+    macosx) shift; EXTRA_LIBS="curses $*";;
+    linux) shift; EXTRA_LIBS="$*";;
+    --) shift; EXTRA_LIBS="$*";;
+    *) echo "Not supported %{ocamlc-config:system} '$1'."; help_exit
+esac
 
 ## Static linking configuration ##