[pkgsrc/trunk]: pkgsrc/mk/buildlink3 Use the stack in a smarter way. Take an...

[jlam <jlam%pkgsrc.org@localhost>]

details:   https://anonhg.NetBSD.org/pkgsrc/rev/6c9ef81dfd77
branches:  trunk
changeset: 467374:6c9ef81dfd77
user:      jlam <jlam%pkgsrc.org@localhost>
date:      Fri Jan 30 13:44:52 2004 +0000

description:
Use the stack in a smarter way.  Take an argument (perhaps marshalling
several arguments together) from the command line and push it onto the
stack.  Pop the top off the stack, process, and push replacement
arguments onto the stack.  Repeat the last step until no more processing
is done, and we have our final argument to be passed on through to the
rest of the wrapper script.

diffstat:

 mk/buildlink3/buffer |  57 +++++++++++++++++++++++++++------------------------
 1 files changed, 30 insertions(+), 27 deletions(-)

diffs (84 lines):

diff -r 3127f8a460cc -r 6c9ef81dfd77 mk/buildlink3/buffer
--- a/mk/buildlink3/buffer      Fri Jan 30 11:31:37 2004 +0000
+++ b/mk/buildlink3/buffer      Fri Jan 30 13:44:52 2004 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: buffer,v 1.6 2004/01/29 07:19:00 jlam Exp $
+# $NetBSD: buffer,v 1.7 2004/01/30 13:44:52 jlam Exp $
 #
 # Push arguments onto the argument stack and shift the arguments.  The
 # next argument checked by the cache and logic files is take from the
@@ -12,17 +12,30 @@
        #
        . $marshall
        #
-       # Fill the buffers from $arg.
+       # Push the argument onto the stack.
+       #
+       depth=${depth}0
+       eval stack${depth}="\$arg"
+fi
+
+argok=no
+while $test "$argok" = "no"; do
+       #
+       # Take $arg from the top of the stack.
        #
+       eval arg="\$stack${depth}"
+       depth=${depth%0}
+       argok=yes
+
        case $arg in
+       #
+       # Change "-<rpath_flag>/path1:/path2" into
+       # "-<rpath_flag>/path1 -<rpath_flag>/path2" so that
+       # they can be checked correctly in the cache and logic
+       # files.
+       #
        -R*:*|-Wl,-R*:*|-Wl,-rpath,*:*|-Wl,-rpath-link,*:*|\
        -Wl,--rpath,*:*|-Wl,--rpath-link,*:*)
-               #
-               # Change "-<rpath_flag>/path1:/path2" into
-               # "-<rpath_flag>/path1 -<rpath_flag>/path2" so that
-               # they can be checked correctly in the cache and logic
-               # files.
-               #
                case $arg in
                -R*)                    R="-R" ;;
                -Wl,-R*)                R="-Wl,-R" ;;
@@ -32,27 +45,17 @@
                -Wl,--rpath-link,*)     R="-Wl,--rpath-link," ;;
                esac
                arg=`$echo "X$arg" | $Xsed -e "s|^"$R"||g"`
-               allargs="$@"
                save_IFS="${IFS}"; IFS=":"
-               set -- $arg
-               while $test $# -gt 0; do
-                       depth=${depth}0
-                       eval stack${depth}="\$R\$1"
-                       shift
+               revarg=
+               for dir in $arg; do
+                       revarg="$dir $revarg"
                done
                IFS="${save_IFS}"
-               if $test -n "$allargs"; then
-                       set -- $allargs
-               fi
-               ;;
-       *)
-               depth=${depth}0
-               eval stack${depth}="\$arg"
+               for dir in $revarg; do
+                       depth=${depth}0
+                       eval stack${depth}="\$R\$dir"
+               done
+               argok=no
                ;;
        esac
-fi
-#
-# Re-fetch $arg from the top of the stack.
-#
-eval arg="\$stack${depth}"
-depth=${depth%0}
+done