AIX: Add ExportImportList option to skip the object files

Modules/Platform/AIX/ExportImportList

@@ -5,7 +5,7 @@
 # This script is internal to CMake and meant only to be
 # invoked by CMake-generated build systems on AIX.
 
-usage='usage: ExportImportList -o <out-file> [-l <lib>] [--] <objects>...'
+usage='usage: ExportImportList -o <out-file> [-l <lib>] [-n] [--] <objects>...'
 
 die() {
     echo "$@" 1>&2; exit 1
@@ -14,10 +14,12 @@ die() {
 # Process command-line arguments.
 out=''
 lib=''
+no_objects=''
 while test "$#" != 0; do
     case "$1" in
     -l) shift; lib="$1" ;;
     -o) shift; out="$1" ;;
+    -n) no_objects='1' ;;
     --) shift; break ;;
     -*) die "$usage" ;;
     *)  break ;;
@@ -32,20 +34,22 @@ trap 'rm -f "$out_tmp"' EXIT INT TERM
 > "$out_tmp"
 
 # Collect symbols exported from all object files.
-for f in "$@"; do
-    dump -tov -X 32_64 "$f" |
-    awk '
-        BEGIN {
-            V["EXPORTED"]=" export"
-            V["PROTECTED"]=" protected"
-        }
-        /^\[[0-9]+\]\tm +[^ ]+ +\.(text|data|bss) +[^ ]+ +(extern|weak) +(EXPORTED|PROTECTED| ) / {
-            if (!match($NF,/^(\.|__sinit|__sterm|__[0-9]+__)/)) {
-                print $NF V[$(NF-1)]
+if test -z "$no_objects"; then
+    for f in "$@"; do
+        dump -tov -X 32_64 "$f" |
+        awk '
+            BEGIN {
+                V["EXPORTED"]=" export"
+                V["PROTECTED"]=" protected"
             }
-        }
-    '
-done >> "$out_tmp"
+            /^\[[0-9]+\]\tm +[^ ]+ +\.(text|data|bss) +[^ ]+ +(extern|weak) +(EXPORTED|PROTECTED| ) / {
+                if (!match($NF,/^(\.|__sinit|__sterm|__[0-9]+__)/)) {
+                    print $NF V[$(NF-1)]
+                }
+            }
+        '
+    done >> "$out_tmp"
+fi
 
 # Generate the export/import file.
 {