app-forensics/afl: Disable clang-fast mode.

This is currently broken with latest clang/llvm versions and an
upstream bug remained unanswered. We may re-enable this
once it's fixed upstream. This should resolve all clang-related
bugs.

Also fix doc installation (bug #720194).

Signed-off-by: Hanno Böck <hanno@gentoo.org>
Closes: https://bugs.gentoo.org/720194
Closes: https://bugs.gentoo.org/695488
Closes: https://bugs.gentoo.org/708524
Closes: https://bugs.gentoo.org/821973
Closes: https://bugs.gentoo.org/827107
Closes: https://bugs.gentoo.org/828689
Package-Manager: Portage-3.0.30, Repoman-3.0.3

app-forensics/afl/afl-2.57b-r2.ebuild

@@ -0,0 +1,48 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit multilib toolchain-funcs flag-o-matic
+
+# See https://github.com/google/AFL/pull/117
+PATCHES=( "${FILESDIR}/${P}-install-readmemd.diff" )
+
+DESCRIPTION="american fuzzy lop - compile-time instrumentation fuzzer"
+HOMEPAGE="https://lcamtuf.coredump.cx/afl/"
+SRC_URI="https://github.com/google/AFL/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="Apache-2.0"
+SLOT="0"
+KEYWORDS="~amd64"
+
+DEPEND="sys-devel/gcc:*
+	!app-forensics/aflplusplus"
+RDEPEND="${DEPEND}"
+QA_PREBUILT="/usr/share/afl/testcases/others/elf/small_exec.elf"
+
+S="${WORKDIR}/AFL-${PV}"
+
+src_compile() {
+	emake CC="$(tc-getCC)" \
+		PREFIX="${EPREFIX}/usr" \
+		HELPER_PATH="${EPREFIX}/usr/$(get_libdir)/afl" \
+		DOC_PATH="${EPREFIX}/usr/share/doc/${PF}"
+#	Not compatible with latest clang, see
+#	https://github.com/google/AFL/issues/151
+#
+#	CC="clang" CXX="clang++" strip-unsupported-flags
+#	cd llvm_mode || die
+#	emake \
+#		PREFIX="${EPREFIX}/usr" \
+#		HELPER_PATH="${EPREFIX}/usr/$(get_libdir)/afl" \
+#		DOC_PATH="${EPREFIX}/usr/share/doc/${PF}"
+}
+
+src_install() {
+	emake DESTDIR="${D}" \
+		PREFIX="${EPREFIX}/usr" \
+		HELPER_PATH="${EPREFIX}/usr/$(get_libdir)/afl" \
+		DOC_PATH="${EPREFIX}/usr/share/doc/${PF}" \
+		install
+}

app-forensics/afl/files/afl-2.57b-install-readmemd.diff

@@ -0,0 +1,12 @@
+diff --git a/Makefile b/Makefile
+index 5e800db26..381931289 100644
+--- a/Makefile
++++ b/Makefile
+@@ -133,7 +133,7 @@ endif
+ 	set -e; for i in afl-g++ afl-clang afl-clang++; do ln -sf afl-gcc $${DESTDIR}$(BIN_PATH)/$$i; done
+ 	install -m 755 afl-as $${DESTDIR}$(HELPER_PATH)
+ 	ln -sf afl-as $${DESTDIR}$(HELPER_PATH)/as
+-	install -m 644 docs/README docs/ChangeLog docs/*.txt $${DESTDIR}$(DOC_PATH)
++	install -m 644 README.md docs/ChangeLog docs/*.txt $${DESTDIR}$(DOC_PATH)
+ 	cp -r testcases/ $${DESTDIR}$(MISC_PATH)
+ 	cp -r dictionaries/ $${DESTDIR}$(MISC_PATH)