--- gnash/macros/boost.m4.ark	2006-10-30 16:24:46.000000000 +0100
+++ gnash/macros/boost.m4	2006-10-30 16:41:03.000000000 +0100
@@ -51,7 +51,7 @@
   gnash_boost_version=""
   for i in $pathlist; do
     for j in `ls -dr $i/boost* 2>/dev/null`; do
-      if test -f ${libdir}/boost/detail/lightweight_mutex.hpp; then
+      if test -f ${j}/boost/detail/lightweight_mutex.hpp; then
         gnash_boost_topdir=`basename $j`
         gnash_boost_version=`echo ${gnash_boost_topdir} | sed -e 's:boost-::'`
         break
@@ -75,6 +75,12 @@
           ac_cv_path_boost_incl="-I$i"
           break
         fi
+        for j in `ls -dr $i/boost* 2>/dev/null`; do
+          if test -f $j/boost/detail/lightweight_mutex.hpp; then
+            ac_cv_path_boost_incl="-I$j"
+            break
+          fi
+        done
       done
    fi])
   fi