Improve cpkg.

src/cpkg

@@ -6,6 +6,7 @@ cleanup() {
         return
     fi
     rm -rf $PKGDIR
+    rm -f $SCRIPT
 }
 
 trap cleanup EXIT
@@ -18,6 +19,8 @@ then
     shift
     PKGDIR="$1"
     shift
+    SCRIPT=$1
+    shift
 fi
 
 if [ $# -eq 0 ]
@@ -35,10 +38,19 @@ then
         exit 1
     fi
     PKGDIR=$(mktemp -d)
-    fakeroot -- $0 -F "$PKGDIR" "$@" || exit $?
+    SCRIPT=$(mktemp)
+    fakeroot -- $0 -F "$PKGDIR" "$SCRIPT" "$@" || exit $?
 else
-    env DESTDIR=$PKGDIR "$@"
+    echo -e '#!/bin/bash\n' > $SCRIPT
+    echo "$@" >> $SCRIPT
+    chmod +x $SCRIPT
+    env DESTDIR=$PKGDIR $SCRIPT
+
     PKGNAME=$(basename $(pwd))
+    if [ $PKGNAME = "build" ]
+    then
+        PKGNAME=$(basename $(cd ..;pwd))
+    fi
 
     PKGDEST="${FPKG_ROOT}/pkg"