[Nix-dev] pkgs: xawtv-3.95-makefile.patch maybe wrong man and libdir or lack of understanding

[Marc Weber]

file content is
=============  =======================================================
 # for package builds (buildroot install + no root privs needed)
 DESTDIR=                                    <<   2nd line
-SUID_ROOT=-m4755 -o root
+SUID_ROOT=
 
 # install paths
 prefix		:= @prefix@
@@ -12,7 +12,7 @@
 mandir		:= $(DESTDIR)@mandir@
 libdir		:= $(DESTDIR)@libdir@/xawtv
 datadir		:= $(DESTDIR)@datadir@/xawtv
-resdir		:= $(DESTDIR)@resdir@          << 10th line
+resdir		:= $(out)@resdir@
 config		:= @x11conf@/xawtvrc
 
 # programs
============  =======================================================

Notice the 2nd line and 10th line
2nd line is meant to set DESTDIR, isn't it ?
The 10th and 11th line set resdir using $(out)
But mandir, libdir, datadir aren't touched.

Is this intentionally?
I would have tried replacing the snd line only
-DESTDIR=
+DESTDIR=$(out)

What did I miss here?

Marc W.