# HG changeset patch
# User "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
# Date 1278534829 -7200
# Node ID 868d6e0792407755f6c3e7a370c66a5980950f66
# Parent  89a26b7c4a4f20054f3039a741f916e25b6e54c7
scripts/finish: do not try to symlink if sed expr is a no-op

If the sed expression does not transform the
tuple, do not try to create the symlink.
(transplanted from 5d6d3c28a658a65551d4eb5de414fd97b575f314)

diff -r 89a26b7c4a4f -r 868d6e079240 scripts/build/internals.sh
--- a/scripts/build/internals.sh	Sun Jun 27 18:38:12 2010 +0200
+++ b/scripts/build/internals.sh	Wed Jul 07 22:33:49 2010 +0200
@@ -31,7 +31,11 @@
         fi
         if [ -n "${CT_TARGET_ALIAS_SED_EXPR}" ]; then
             _t=$(echo "$t" |sed -r -e "${CT_TARGET_ALIAS_SED_EXPR}")
-            CT_DoExecLog ALL ln -sv "${t}" "${_t}"
+            if [ "${_t}" = "${t}" ]; then
+                CT_DoLog WARN "The sed expression '${CT_TARGET_ALIAS_SED_EXPR}' has no effect on '${t}'"
+            else
+                CT_DoExecLog ALL ln -sv "${t}" "${_t}"
+            fi
         fi
     done
     CT_Popd