From 98e09e01e1d254347ab579ba849aefcb640ff8f1 Mon Sep 17 00:00:00 2001
From: Juan RP <xtraeme@gmail.com>
Date: Sun, 27 Oct 2019 08:44:37 +0100
Subject: [PATCH] lib/package_alternatives.c: check if alternative is a symlink
 before removing it

Original commit by @duncaen ... but couldn't find this anywhere.
---
 lib/package_alternatives.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/package_alternatives.c b/lib/package_alternatives.c
index 9b4d0027..5e4f2b36 100644
--- a/lib/package_alternatives.c
+++ b/lib/package_alternatives.c
@@ -111,6 +111,7 @@ static int
 remove_symlinks(struct xbps_handle *xhp, xbps_array_t a, const char *grname)
 {
 	unsigned int i, cnt;
+	struct stat st;
 
 	cnt = xbps_array_count(a);
 	for (i = 0; i < cnt; i++) {
@@ -132,6 +133,11 @@ remove_symlinks(struct xbps_handle *xhp, xbps_array_t a, const char *grname)
 		} else {
 			lnk = xbps_xasprintf("%s%s", xhp->rootdir, l);
 		}
+		if (lstat(lnk, &st) == -1 || !S_ISLNK(st.st_mode)) {
+			free(lnk);
+			free(l);
+			continue;
+		}
 		xbps_set_cb_state(xhp, XBPS_STATE_ALTGROUP_LINK_REMOVED, 0, NULL,
 		    "Removing '%s' alternatives group symlink: %s", grname, l);
 		unlink(lnk);