xawtv: fix build w/glibc-2.32

Also emailed the patch to the maintainer.

pkgs/applications/video/xawtv/0001-Fix-build-for-glibc-2.32.patch

@@ -0,0 +1,63 @@
+From 009c426ab37ef7f8d9d8e30f45096225203d694a Mon Sep 17 00:00:00 2001
+From: Maximilian Bosch <maximilian@mbosch.me>
+Date: Tue, 11 Aug 2020 11:27:21 +0200
+Subject: [PATCH] Fix build for glibc-2.32
+
+The `sys_siglist`-array has been removed. Instead, `strsignal` should be
+used.
+---
+ console/fbtools.c | 2 +-
+ console/record.c  | 2 +-
+ x11/rootv.c       | 4 ++--
+ 3 files changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/console/fbtools.c b/console/fbtools.c
+index 9f876df..07739ff 100644
+--- a/console/fbtools.c
++++ b/console/fbtools.c
+@@ -520,6 +520,6 @@ fb_catch_exit_signals(void)
+ 
+     /* cleanup */
+     fb_cleanup();
+-    fprintf(stderr,"Oops: %s\n",sys_siglist[termsig]);
++    fprintf(stderr,"Oops: %s\n",strsignal(termsig));
+     exit(42);
+ }
+diff --git a/console/record.c b/console/record.c
+index 685221b..90f0c85 100644
+--- a/console/record.c
++++ b/console/record.c
+@@ -429,7 +429,7 @@ ctrlc(int signal)
+ {
+     if (verbose)
+ 	fprintf(stderr,"\n%s - exiting\n",
+-		sys_siglist[signal]);
++		strsignal(signal));
+     stop = 1;
+ }
+ 
+diff --git a/x11/rootv.c b/x11/rootv.c
+index 60a8406..4bf458b 100644
+--- a/x11/rootv.c
++++ b/x11/rootv.c
+@@ -133,7 +133,7 @@ catch_sig(int signal)
+     termsig = signal;
+     if (verbose)
+ 	fprintf(stderr,"received signal %d [%s]\n",
+-		termsig,sys_siglist[termsig]);
++		termsig,strsignal(termsig));
+ }
+ 
+ static void usage(FILE *fp)
+@@ -422,7 +422,7 @@ main(int argc, char *argv[])
+     }
+     if (verbose && termsig)
+ 	fprintf(stderr,"exiting on signal %d [%s]\n",
+-		termsig,sys_siglist[termsig]);
++		termsig,strsignal(termsig));
+     if (do_mute && have_mute)
+ 	XvSetPortAttribute(dpy,port,XV_MUTE,1);
+     XvStopVideo(dpy,port,win);
+-- 
+2.25.4
+

pkgs/applications/video/xawtv/default.nix

@@ -26,6 +26,10 @@ stdenv.mkDerivation rec {
     sha256 = "055p0wia0xsj073l8mg4ifa6m81dmv6p45qyh99brramq5iylfy5";
   };
 
+  patches = [
+    ./0001-Fix-build-for-glibc-2.32.patch
+  ];
+
   buildInputs = [
     ncurses
     libjpeg