Bug: https://bugs.gentoo.org/779484

From: orbea <orbea@riseup.net>
Date: Mon, 11 Jul 2022 17:23:36 -0700
Subject: [PATCH] build: Remove -no-undefined

This depends on lxappearance_changed which is only available in the
lxappearence binary and will be undefined at build time. Additionally
GNU libtool silently ignores -no-undefined allowing the build to work
while slibtool will respect it as expected.

The easiest way to solve this is to just remove -no-undefined since it
is not respected anyways.

--- a/configure.ac
+++ b/configure.ac
@@ -126,7 +126,7 @@ AC_SUBST(LXAPPEARANCE_LIBDIR)
 AC_SUBST(LXAPPEARANCE_DATADIR)
 
 LXAPPEARANCE_MODULE="-avoid-version \
-    -no-undefined "'-export-symbols-regex "^[[^_]].*"'
+    "'-export-symbols-regex "^[[^_]].*"'
 AC_SUBST(LXAPPEARANCE_MODULE)
 
 if test x"$enable_more_warnings" = x"yes"; then