configure --with-storages: Drop duplicate storages.

--HG--
branch : HEAD

diff --git a/configure.in b/configure.in
index b5b738c9786de8aa5199ec6547a2c80f2b89fe6d..f9e1c277473b4682ce0208f3adf7acbf89164516 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -2268,6 +2268,8 @@ STORAGE_LIB='$(top_builddir)/src/lib-storage/libdovecot-storage.la'
 
 LINKED_STORAGE_LIBS=
 mail_storages="$mail_storages raw"
+# drop duplicates
+mail_storages=`(for i in $mail_storages; do echo $i; done)|sort|uniq|xargs echo`
 for storage in $mail_storages; do
   LINKED_STORAGE_LIBS="$LINKED_STORAGE_LIBS `eval echo \\$${storage}_libs`"
 done