improve install script for

1 files changed, 7 insertions, 2 deletions

diff --git a/install b/install
index ff67f9899..9b863fccf 100755
--- a/install
+++ b/install
@@ -8,9 +8,9 @@ verbose=
 #verbose=-v
 
 # prefix
-if [ -d "/usr/local" ]; then
+if [[ "$PATH" =~ "/usr/local/bin" ]]; then
     prefix=/usr/local
-elif [ -d "/usr" ]; then
+else
     prefix=/usr
 fi
 if [ $1 ]; then
@@ -115,5 +115,10 @@ if [ $? -ne 0 ]; then
     exit;
 fi
 
+# tip
+if [[ ! "$PATH" =~ "$prefix/bin" ]]; then
+    echo 'please export PATH=$PATH:'"$prefix/bin"
+fi
+
 # ok
 echo ok!