libalpm/remove.c : avoid duplicated packages in removal list.

Suppose a package foo depends on foo1, foo2, ..., foon.
Doing pacman -Rc foo1 foo2 ... foon added foo n times to the removal list,
because what checkdeps return is something like :
foo1 is requiredby foo
foo2 is requiredby foo
...
foon is requiredby foo

Signed-off-by: Chantry Xavier <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 5 insertions, 3 deletions

diff --git a/lib/libalpm/remove.c b/lib/libalpm/remove.c
index 39cfe5a7..010e7ab6 100644
--- a/lib/libalpm/remove.c
+++ b/lib/libalpm/remove.c
@@ -113,9 +113,11 @@ int _alpm_remove_prepare(pmtrans_t *trans, pmdb_t *db, alpm_list_t **data)
 						pmdepmissing_t *miss = (pmdepmissing_t *)i->data;
 						pmpkg_t *info = _alpm_db_scan(db, miss->target);
 						if(info) {
-							_alpm_log(PM_LOG_DEBUG, "pulling %s in the targets list\n",
-									alpm_pkg_get_name(info));
-							trans->packages = alpm_list_add(trans->packages, info);
+							if(!_alpm_pkg_find(alpm_pkg_get_name(info), trans->packages)) {
+								_alpm_log(PM_LOG_DEBUG, "pulling %s in the targets list\n",
+										alpm_pkg_get_name(info));
+								trans->packages = alpm_list_add(trans->packages, info);
+							}
 						} else {
 							_alpm_log(PM_LOG_ERROR, _("could not find %s in database -- skipping\n"),
 							          miss->depend.name);