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Remove dependency on dpkg

Upstream-Status: Submitted

Asking the host OS whether it supports multiarch is not useful
in a cross-compilation environment, or if the user has specified
a libdir explicitly. So this patch, based on the work of Mentor
Graphics, removes mklibs's dependency on dpkg package.

Signed-off-by: Yuanjie Huang <Yuanjie.Huang@windriver.com>
 src/mklibs | 30 +++++++++++++++++++-----------
 1 file changed, 19 insertions(+), 11 deletions(-)

diff --git a/src/mklibs b/src/mklibs
index d9b784b..c5614ea 100755
--- a/src/mklibs
+++ b/src/mklibs
@@ -261,6 +261,11 @@ def extract_soname(so_file):
     return ""
 
 def multiarch(paths):
+    # Asking the host OS whether it supports multiarch is not useful
+    # in a cross-compilation environment, or if the user has specified
+    # a libdir explicitly.
+    if sysroot != "" or libdir != "":
+        return paths
     devnull = open('/dev/null', 'w')
     dpkg_architecture = subprocess.Popen(
         ['dpkg-architecture', '-qDEB_HOST_MULTIARCH'],
@@ -340,7 +345,7 @@ lib_path = []
 dest_path = "DEST"
 ldlib = "LDLIB"
 include_default_lib_path = "yes"
-default_lib_path = multiarch(["/lib/", "/usr/lib/", "/usr/X11R6/lib/"])
+default_lib_path = ["/lib/", "/usr/lib/", "/usr/X11R6/lib/"]
 libc_extras_dir = "/usr/lib/libc_pic"
 libc_extras_dir_default = True
 libdir = "lib"
@@ -386,7 +391,7 @@ for opt, arg in optlist:
     elif opt == "--libdir":
         libdir = arg
     elif opt in ("--help", "-h"):
-	usage(0)
+        usage(0)
         sys.exit(0)
     elif opt in ("--version", "-V"):
         version(vers)
@@ -395,6 +400,7 @@ for opt, arg in optlist:
         print "WARNING: unknown option: " + opt + "\targ: " + arg
 
 if include_default_lib_path == "yes":
+    default_lib_path = multiarch(default_lib_path)
     lib_path.extend([a.replace("/lib/", "/" + libdir + "/") for a in default_lib_path])
 
 if libc_extras_dir_default:
@@ -661,16 +669,16 @@ ld_path_name = os.path.dirname(ldlib)
 ld_full_path = "../" + ldlib
 ld_file = find_lib(ld_file_name)
 
-if ld_path_name != "/lib":
-    if os.access(dest_path + "/" + ld_file_name, os.F_OK):
-        os.remove(dest_path + "/" + ld_file_name)
+#if ld_path_name != "/lib":
+#    if os.access(dest_path + "/" + ld_file_name, os.F_OK):
+#        os.remove(dest_path + "/" + ld_file_name)
 
-if not os.path.exists(dest_path + "/../" + ld_path_name):
-    os.mkdir(dest_path + "/../" + ld_path_name)
+#if not os.path.exists(dest_path + "/../" + ld_path_name):
+#    os.mkdir(dest_path + "/../" + ld_path_name)
 
-if not os.access(dest_path + "/" + ld_full_path, os.F_OK):
-    debug(DEBUG_NORMAL, "I: stripping and copying dynamic linker to " + ld_full_path)
+if not os.access(dest_path + "/" + ld_file_name, os.F_OK):
+    debug(DEBUG_NORMAL, "I: stripping and copying dynamic linker to " + ld_file_name)
     command(target + "objcopy", "--strip-unneeded -R .note -R .comment",
-            ld_file, dest_path + "/" + ld_full_path)
+            ld_file, dest_path + "/" + ld_file_name)
 
-os.chmod(dest_path + "/" + ld_full_path, 0755)
+os.chmod(dest_path + "/" + ld_file_name, 0755)