configure: fix $prefix expansion for libdir_expanded

[notmuch] / configure

diff --git a/configure b/configure
index 2a0ce9eb41568c017b95e3066e4c21ce2869d87d..f17730441298648bcc31a66992ccd38ef259d6bb 100755 (executable)
--- a/configure
+++ b/configure
@@ -274,7 +274,7 @@ if [ -z "$LIBDIR" ] ; then
     libdir_expanded="${PREFIX}/lib"
 else
     # very non-general variable expansion
-    libdir_expanded=$(echo "$LIBDIR" | sed "s|\\${prefix}|${PREFIX}|g; s|\\$prefix/|${PREFIX}/|; s|//*|/|g")
+    libdir_expanded=$(printf %s "$LIBDIR" | sed "s|\${prefix}|${PREFIX}|; s|\$prefix\>|${PREFIX}|; s|//*|/|g")
 fi
 
 cat <<EOF