dns/void-zones-tools: Fix build with WITH_PIE=YES

Patch CFLAGS from being overridden and remove -fno-pic to facilitate
building with WITH_PIE=yes

PR:		275039
Reported by:	Marek Zarychta

dns/void-zones-tools/Makefile

@@ -2,6 +2,7 @@ PORTNAME=	void-zones-tools
 DISTVERSIONPREFIX=	v
 DISTVERSION=	1.0.2-18
 DISTVERSIONSUFFIX=	-g204634a
+PORTREVISION=	1
 CATEGORIES=	dns
 
 MAINTAINER=	vidar@karlsen.tech

dns/void-zones-tools/files/patch-Makefile

@@ -1,13 +1,22 @@
 --- Makefile.orig	2023-08-28 22:28:23 UTC
 +++ Makefile
-@@ -26,9 +26,7 @@
+@@ -26,15 +26,13 @@
  CC ?= clang
  DV != $(CC) -dumpversion
 
 -.if $(MACHINE) == "i386" || $(MACHINE) == "amd64" || $(MACHINE) == "x86_64"
 -CFLAGS = $(CDEFS) -march=native -mssse3
 -.elif $(MACHINE) == "arm"
+-CFLAGS = $(CDEFS) -fsigned-char
 +.if $(MACHINE) == "arm"
- CFLAGS = $(CDEFS) -fsigned-char
++CFLAGS += $(CDEFS) -fsigned-char
  .else
- CFLAGS = $(CDEFS)
+-CFLAGS = $(CDEFS)
++CFLAGS += $(CDEFS)
+ .endif
+
+-CFLAGS += -std=gnu11 -g0 -O3 -fno-pic -fvisibility=hidden -fstrict-aliasing -fno-common -fstack-protector -Wno-parentheses
++CFLAGS += -std=gnu11 -g0 -O3 -fvisibility=hidden -fstrict-aliasing -fno-common -fstack-protector -Wno-parentheses
+
+ # Clang only flags come here
+ .if $(DV) == "4.2.1"