dev-util/ccache: prefer using bundled C++ deps by default

This prevents potential problems with libstdc++ especially during
toolchain builds.

Closes: https://bugs.gentoo.org/938011
Signed-off-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Closes: https://github.com/gentoo/gentoo/pull/38590
Signed-off-by: Sam James <sam@gentoo.org>

1 files changed, 147 insertions, 0 deletions

diff --git a/dev-util/ccache/ccache-4.10.2-r1.ebuild b/dev-util/ccache/ccache-4.10.2-r1.ebuild
new file mode 100644
index 000000000000..27ae5c200cb3
--- /dev/null
+++ b/dev-util/ccache/ccache-4.10.2-r1.ebuild
@@ -0,0 +1,147 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# XXX: We don't use CCACHE_* for these vars like we do in e.g. cmake/libabigail/qemu
+# because Portage unsets them. Aaaah!
+#
+# Generate using https://github.com/thesamesam/sam-gentoo-scripts/blob/main/niche/generate-ccache-docs
+# Set to 1 if prebuilt, 0 if not
+# (the construct below is to allow overriding from env for script)
+: ${MY_DOCS_PREBUILT:=1}
+
+MY_DOCS_PREBUILT_DEV=sam
+MY_DOCS_VERSION=$(ver_cut 1-2)
+# Default to generating docs (inc. man pages) if no prebuilt; overridden later
+# See bug #784815
+MY_DOCS_USEFLAG="+doc"
+
+VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/joelrosdahl.asc
+inherit cmake toolchain-funcs flag-o-matic prefix verify-sig
+
+DESCRIPTION="Fast compiler cache"
+HOMEPAGE="https://ccache.dev/"
+SRC_URI="https://github.com/ccache/ccache/releases/download/v${PV}/${P}.tar.xz"
+SRC_URI+=" verify-sig? ( https://github.com/ccache/ccache/releases/download/v${PV}/${P}.tar.xz.asc )"
+if [[ ${MY_DOCS_PREBUILT} == 1 ]] ; then
+	SRC_URI+=" !doc? ( https://dev.gentoo.org/~${MY_DOCS_PREBUILT_DEV}/distfiles/${CATEGORY}/${PN}/${PN}-${MY_DOCS_VERSION}-docs.tar.xz )"
+	MY_DOCS_USEFLAG="doc"
+fi
+
+# https://ccache.dev/license.html
+# ccache, blake3, NonstdSpan, tl-expected
+LICENSE="GPL-3+ || ( CC0-1.0 Apache-2.0 ) Boost-1.0 CC0-1.0"
+LICENSE+=" elibc_mingw? ( LGPL-3 ISC PSF-2 )"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
+# Enable 'static-c++' by default to make 'gcc' ebuild Just Work: bug #761220
+IUSE="${MY_DOCS_USEFLAG} redis +static-c++ test"
+RESTRICT="!test? ( test )"
+
+# TODO: package NonstdSpan, TlExpected
+DEPEND="
+	>=app-arch/zstd-1.3.4:=
+	!static-c++? (
+		>=dev-cpp/cpp-httplib-0.10.6:=
+		>=dev-libs/libfmt-8.0.0:=
+	)
+	>=dev-libs/blake3-1.4.0:=
+	>=dev-libs/xxhash-0.8.0
+	redis? ( >=dev-libs/hiredis-0.13.3:= )
+"
+RDEPEND="
+	${DEPEND}
+	dev-util/shadowman
+	sys-apps/gentoo-functions
+"
+# Needed for eselect calls in pkg_*
+IDEPEND="dev-util/shadowman"
+
+# clang-specific tests use dev-libs/elfutils to compare objects for equality.
+# Let's pull in the dependency unconditionally.
+BDEPEND="
+	doc? ( dev-ruby/asciidoctor )
+	test? (
+		>=dev-cpp/doctest-2.4.6
+		dev-libs/elfutils
+	)
+	verify-sig? ( sec-keys/openpgp-keys-joelrosdahl )
+"
+
+DOCS=( doc/{AUTHORS,MANUAL,NEWS}.adoc CONTRIBUTING.md README.md )
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-3.5-nvcc-test.patch
+	"${FILESDIR}"/${PN}-4.0-objdump.patch
+	"${FILESDIR}"/${PN}-4.10-avoid-run-user.patch
+)
+
+src_unpack() {
+	# Avoid aborting on the doc tarball
+	if use verify-sig ; then
+		verify-sig_verify_detached "${DISTDIR}"/${P}.tar.xz{,.asc}
+	fi
+
+	default
+}
+
+src_prepare() {
+	cmake_src_prepare
+
+	cp "${FILESDIR}"/ccache-config-3 ccache-config || die
+	eprefixify ccache-config
+}
+
+src_configure() {
+	# Mainly used in tests
+	tc-export CC OBJDUMP
+
+	local mycmakeargs=(
+		-DENABLE_DOCUMENTATION=$(usex doc)
+		-DENABLE_TESTING=$(usex test)
+		-DDEPS=LOCAL
+		-DREDIS_STORAGE_BACKEND=$(usex redis)
+	)
+
+	# Avoid dependency on libstdc++.so. Useful for cases when
+	# we would like to use ccache to build older gcc which injects
+	# into ccache locally built (possibly outdated) libstdc++
+	# See bug #761220 for examples.
+	#
+	# Ideally gcc should not use LD_PRELOAD to avoid this type of failure.
+	if use static-c++ ; then
+		append-ldflags -static-libstdc++
+		mycmakeargs+=(
+			-DDEP_CPPHTTPLIB=BUNDLED
+			-DDEP_FMT=BUNDLED
+		)
+	fi
+
+	cmake_src_configure
+}
+
+src_install() {
+	cmake_src_install
+
+	dobin ccache-config
+	insinto /usr/share/shadowman/tools
+	newins - ccache <<<"${EPREFIX}/usr/lib/ccache/bin"
+
+	# If USE=doc, there'll be newly generated docs which we install instead.
+	if ! use doc && [[ ${MY_DOCS_PREBUILT} == 1 ]] ; then
+		doman "${WORKDIR}"/${PN}-${MY_DOCS_VERSION}-docs/doc/*.[0-8]
+	fi
+}
+
+pkg_prerm() {
+	if [[ -z ${REPLACED_BY_VERSION} && -z ${ROOT} ]] ; then
+		eselect compiler-shadow remove ccache
+	fi
+}
+
+pkg_postinst() {
+	if [[ -z ${ROOT} ]] ; then
+		eselect compiler-shadow update ccache
+	fi
+}