net-analyzer/hexinject: update EAPI 6 -> 8

Closes: https://bugs.gentoo.org/724862
Signed-off-by: David Seifert <soap@gentoo.org>

net-analyzer/hexinject/files/hexinject-1.6-fix-build-system.patch

@@ -1,18 +1,22 @@
 Author: holgersson <holgersson@posteo.de>
 Date:   Fri Oct 20 18:30:00 2017 +0200
 
-Don’t call gcc directly, and respect CFLAGS. As this project
-is plain C I don’t care fore CXXFLAGS here.
+Respect CC, CFLAGS, CPPFLAGS and LDFLAGS.
 
---- a/Makefile	2017-10-20 18:15:11.743805540 +0200
-+++ b/Makefile	2017-10-20 18:24:55.120009439 +0200
-@@ -1,6 +1,6 @@
+--- a/Makefile
++++ b/Makefile
+@@ -1,11 +1,7 @@
 -CC = gcc
 -CFLAGS = -Wall
 -LDFLAGS = -lpcap
-+CC ?= gcc
 +CFLAGS += -Wall
-+LDFLAGS = -lpcap
++LDLIBS = -lpcap
  
- all:
- 	$(CC) $(CFLAGS) $(LDFLAGS) -o hexinject hexinject.c
+-all:
+-	$(CC) $(CFLAGS) $(LDFLAGS) -o hexinject hexinject.c
+-	$(CC) $(CFLAGS) $(LDFLAGS) -o prettypacket prettypacket.c
+-	$(CC) $(CFLAGS) $(LDFLAGS) -o hex2raw hex2raw.c
++all: hexinject prettypacket hex2raw
+ 
+ clean:
+ 	rm -f hexinject prettypacket hex2raw *~

net-analyzer/hexinject/hexinject-1.6-r2.ebuild

@@ -1,13 +1,14 @@
-# Copyright 1999-2017 Gentoo Foundation
+# Copyright 1999-2022 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI="6"
+EAPI=8
 
 inherit toolchain-funcs
 
 DESCRIPTION="Network packet sniffer and injector"
 HOMEPAGE="http://hexinject.sourceforge.net/"
 SRC_URI="mirror://sourceforge/${PN}/${P}.tar.gz"
+S="${WORKDIR}/${PN}"
 
 LICENSE="BSD"
 SLOT="0"
@@ -18,13 +19,9 @@ DEPEND="net-libs/libpcap"
 RDEPEND="${DEPEND}
 	experimental? ( dev-lang/tcl )"
 
-S="${WORKDIR}/${PN}"
-
 PATCHES=( "${FILESDIR}"/${PN}-1.6-fix-build-system.patch )
 
 src_configure() {
-	default
-
 	tc-export CC
 }