--- install.orig	2004-11-15 23:23:31.000000000 +0300
+++ install	2015-02-26 03:47:23.000000000 +0300
@@ -60,18 +60,18 @@
 
 #####################################################
 ## make sure that "install_dir" really is a directory
-if [ ! -d "${install_dir}" ]
+if [ ! -d "${DESTDIR}${install_dir}" ]
 then
-    echo "\"${install_dir}\" - That's not a directory!" 1>&2
+    echo "\"${DESTDIR}${install_dir}\" - That's not a directory!" 1>&2
     echo "I can't install anything there!" 1>&2
     exit 2
 fi
 
 #########################################################
 ## make sure we have permission to write to "install_dir"
-if [ ! -w "${install_dir}" ]
+if [ ! -w "${DESTDIR}${install_dir}" ]
 then
-    echo "I can't write to \"${install_dir}\"" 1>&2
+    echo "I can't write to \"${DESTDIR}${install_dir}\"" 1>&2
     echo "I can't install anything there!" 1>&2
     exit 3
 fi
@@ -86,15 +86,15 @@
 for n in ez-pine-gpg-sign ez-pine-gpg-encrypt ez-pine-gpg-sign-and-encrypt ez-pine-gpg-symmetric ez-pine-gpg-incoming ez-pine-gpg-helper-recipient ez-pine-gpg-helper-sender
 do
     ## remove any file of the same name, if it exists
-    rm -f ${install_dir}/${n}
+    rm -f ${DESTDIR}${install_dir}/${n}
     ## make sure we can create a file there, by creating a file there
-    echo > ${install_dir}/${n}
+    echo > ${DESTDIR}${install_dir}/${n}
     ## while the file is still empty give it reasonable permissions
-    chmod 0755 ${install_dir}/${n}
+    chmod 0755 ${DESTDIR}${install_dir}/${n}
     ## place the script into the file while specifying the PATH
-    sed "s!^PATH=.*\$!PATH=${path}!" $n > ${install_dir}/${n}
+    sed "s!^PATH=.*\$!PATH=${path}!" $n > ${DESTDIR}${install_dir}/${n}
     ## notify user what just happened
-    echo "installing:   ${install_dir}/${n}"
+    echo "installing:   ${DESTDIR}${install_dir}/${n}"
 done
 
 #############