devel/gdb: sync with upstream

Taken from: HardenedBSD

devel/gdb/Makefile

@@ -2,7 +2,7 @@
 
 PORTNAME=	gdb
 DISTVERSION=	10.2
-PORTREVISION=	0
+PORTREVISION=	1
 CATEGORIES=	devel
 MASTER_SITES=	GNU
 
@@ -68,6 +68,7 @@ OPTIONS_SUB=	yes
 
 BUNDLED_READLINE_CONFIGURE_OFF=	--with-system-readline
 DEBUG_CFLAGS=		-g
+DEBUG_VARS=	STRIP=
 GUILE_CONFIGURE_WITH=	guile
 GUILE_LIB_DEPENDS=	libguile-2.2.so:lang/guile2
 NLS_USES=	gettext-runtime

devel/gdb/files/patch-gdb_inflow.c

@@ -0,0 +1,14 @@
+--- gdb/inflow.c.orig	2021-07-03 10:52:57.144161000 +0200
++++ gdb/inflow.c	2021-07-03 10:55:06.776399000 +0200
+@@ -881,7 +881,10 @@
+ pass_signal (int signo)
+ {
+ #ifndef _WIN32
+-  kill (inferior_ptid.pid (), SIGINT);
++  if (inferior_ptid.pid () )
++    kill (inferior_ptid.pid (), SIGINT);
++  else
++    kill (current_inferior ()->pid, SIGINT);
+ #endif
+ }
+