diff --git a/bootstrap.sh b/bootstrap.sh
index 089ab82..a575d26 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -2,5 +2,5 @@
 
 rm -rf .buildutils
 mkdir -p .buildutils/m4
-./update_eigen.sh eigen-3.3.8.tar.bz2
+./update_eigen.sh eigen-3.4.0.tar.bz2
 autoreconf -fvi
diff --git a/build.sh b/build.sh
deleted file mode 100755
index d15ae5b..0000000
--- a/build.sh
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/bin/bash
-
-set -e
-
-PREFIX=`cat Makefile | grep '^prefix =' | awk '{print $3}'`
-case $1 in
-    '')
-        echo '-- building...'
-        make -j8
-        echo '-- installing...'
-        make uninstall 1>/dev/null
-        make install 1>/dev/null;;
-#        if [[ `basename \`pwd\`` == "lib" ]]
-#        then
-#            echo '-- creating debug symbols...'
-#            dsymutil .libs/libLatAnalyze.0.dylib -o ${PREFIX}/lib/libLatAnalyze.0.dylib.dSYM
-#        fi;;
-    'clean')
-        echo '-- cleaning...'
-        make -j8 clean;;
-    *)
-        echo 'error: unknown action' 1>&2
-        exit 1;;
-esac