https://github.com/proftpd/proftpd/pull/1954
https://github.com/proftpd/proftpd/commit/d71ae3f226547b3409dd296e824a57a87354e58d

From 75d79d68465ece9c67fc2f2a9788d28c2965d583 Mon Sep 17 00:00:00 2001
From: orbea <orbea@riseup.net>
Date: Mon, 2 Jun 2025 20:16:17 -0700
Subject: [PATCH] use $(LIBTOOL) to install proftpd

With slibtool 'make install' will install the slibtool wrapper script
instead of the actual executable file. This is because with slibtool
the executable is compiled into the .libs directory while the file in
the root directory is a wrapper script where with GNU libtool the
executable will be placed into the root directory. Using $(LIBTOOL) to
install the executable will ensure that both implementations install the
correct file.

Gentoo-Issue: https://bugs.gentoo.org/953968
---
 Makefile.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile.in b/Makefile.in
index 32fd5f3c8b..3f574a8262 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -134,7 +134,7 @@ $(DESTDIR)$(localedir) $(DESTDIR)$(includedir) $(DESTDIR)$(includedir)/proftpd $
 	fi
 
 install-proftpd: $(DESTDIR)$(includedir) $(DESTDIR)$(localstatedir) $(DESTDIR)$(sysconfdir) $(DESTDIR)$(sbindir)
-	$(INSTALL_SBIN) $(top_builddir)/proftpd $(DESTDIR)$(sbindir)/proftpd
+	$(LIBTOOL) --mode=install --tag=CC $(INSTALL_SBIN) $(top_builddir)/proftpd $(DESTDIR)$(sbindir)/proftpd
 	if [ -f $(DESTDIR)$(sbindir)/in.proftpd ] ; then \
 		rm -f $(DESTDIR)$(sbindir)/in.proftpd ; \
 	fi