[scripts] ext-toolchain.sh: support --wrap with src == dest

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29944 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/scripts/ext-toolchain.sh b/scripts/ext-toolchain.sh
index 257e0d8..23d14a7 100755 (executable)
--- a/scripts/ext-toolchain.sh
+++ b/scripts/ext-toolchain.sh
@@ -205,11 +205,17 @@ wrap_bins() {
                for cmd in "${CC%-*}-"*; do
                        if [ -x "$cmd" ]; then
                                local out="$1/${cmd##*/}"
+                               local bin="$cmd"
+
+                               if [ -x "$out" ] && ! grep -q STAGING_DIR "$out"; then
+                                       mv "$out" "$out.bin"
+                                       bin='$(dirname "$0")/'"${out##*/}"'.bin'
+                               fi
 
                                echo '#!/bin/sh' > "$out"
                                case "${cmd##*/}" in
                                        *-*cc|*-*cc-*|*-*++|*-*++-*|*-cpp)
-                                               echo -n 'exec "'"$cmd"'" '"$CFLAGS"' '         >> "$out"
+                                               echo -n 'exec "'"$bin"'" '"$CFLAGS"' '         >> "$out"
                                                echo -n '${STAGING_DIR:+-idirafter '           >> "$out"
                                                echo -n '"$STAGING_DIR/usr/include" '          >> "$out"
                                                echo -n '-L "$STAGING_DIR/usr/lib" '           >> "$out"
@@ -217,13 +223,13 @@ wrap_bins() {
                                                echo    '"$STAGING_DIR/usr/lib"} "$@"'         >> "$out"
                                        ;;
                                        *-ld)
-                                               echo -n 'exec "'"$cmd"'" ${STAGING_DIR:+'      >> "$out"
+                                               echo -n 'exec "'"$bin"'" ${STAGING_DIR:+'      >> "$out"
                                                echo -n '-L "$STAGING_DIR/usr/lib" '           >> "$out"
                                                echo -n '-rpath-link '                         >> "$out"
                                                echo    '"$STAGING_DIR/usr/lib"} "$@"'         >> "$out"
                                        ;;
                                        *)
-                                               echo "exec '$cmd' \"\$@\"" >> "$out"
+                                               echo    'exec "'"$bin"'" "$@"'                 >> "$out"
                                        ;;
                                esac
                                chmod +x "$out"