dev-java/byaccj: fix implicit function declaration

Signed-off-by: Sam James <[email protected]>

dev-java/byaccj/byaccj-1.15-r3.ebuild

@@ -0,0 +1,31 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit toolchain-funcs
+
+DESCRIPTION="A java extension of BSD YACC-compatible parser generator"
+HOMEPAGE="http://byaccj.sourceforge.net/"
+MY_P="${PN}${PV}_src"
+SRC_URI="mirror://sourceforge/${PN}/${MY_P}.tar.gz"
+
+LICENSE="public-domain"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~x86 ~ppc-macos ~x64-macos"
+
+S="${WORKDIR}/${PN}${PV}"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-1.15-implicit-function-declaration.patch
+)
+
+src_compile() {
+	cp "${FILESDIR}/Makefile" src/Makefile || die
+	emake CC="$(tc-getCC)" LDFLAGS="${LDFLAGS}" CFLAGS="${CFLAGS}" -C src linux
+}
+
+src_install() {
+	newbin src/yacc.linux "${PN}"
+	dodoc docs/ACKNOWLEDGEMEN
+}

dev-java/byaccj/files/byaccj-1.15-implicit-function-declaration.patch

@@ -0,0 +1,15 @@
+main.c: In function ‘done’:
+main.c:88:43: error: implicit declaration of function -Werror=implicit-function-declaration
+   88 |   if (action_file) { fclose(action_file); unlink(action_file_name); }
+      |                                           ^~~~~~
+--- a/src/main.c
++++ b/src/main.c
+@@ -2,6 +2,8 @@
+ #include <stdlib.h>
+ #include <string.h>
+
++#include <unistd.h>
++
+ #ifndef __WIN32__  /*rwj  --  make portable*/
+ #include <signal.h>
+ #else