commit:     619727ef09e9464f656c4d95d4fd9f6fb966fc38
Author:     Sam James <sam <AT> gentoo <DOT> org>
AuthorDate: Mon Dec  4 08:11:09 2023 +0000
Commit:     Sam James <sam <AT> gentoo <DOT> org>
CommitDate: Mon Dec  4 08:33:00 2023 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=619727ef

dev-lang/mono: filter LTO unconditionally, force -O2, no strict aliasing

It's somewhat of a miracle mono works at all nowadays, especially given
all the scary warnings, so force a conservative build.

Bug: https://bugs.gentoo.org/915985
Signed-off-by: Sam James <sam <AT> gentoo.org>

 dev-lang/mono/mono-6.12.0.199-r1.ebuild | 129 ++++++++++++++++++++++++++++++++
 1 file changed, 129 insertions(+)

diff --git a/dev-lang/mono/mono-6.12.0.199-r1.ebuild 
b/dev-lang/mono/mono-6.12.0.199-r1.ebuild
new file mode 100644
index 000000000000..204593665083
--- /dev/null
+++ b/dev-lang/mono/mono-6.12.0.199-r1.ebuild
@@ -0,0 +1,129 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+CHECKREQS_DISK_BUILD="4500M"
+inherit autotools check-reqs flag-o-matic linux-info mono-env pax-utils 
multilib-minimal
+
+DESCRIPTION="Mono runtime and class libraries, a C# compiler/interpreter"
+HOMEPAGE="https://mono-project.com";
+SRC_URI="https://download.mono-project.com/sources/mono/${P}.tar.xz";
+
+LICENSE="MIT LGPL-2.1 GPL-2 BSD-4 NPL-1.1 Ms-PL GPL-2-with-linking-exception 
IDPL"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 -riscv ~x86 ~amd64-linux"
+IUSE="doc minimal nls pax-kernel selinux xen"
+
+# Note: mono works incorrect with older versions of libgdiplus
+# Details on dotnet overlay issue: https://github.com/gentoo/dotnet/issues/429
+DEPEND="
+       app-crypt/mit-krb5[${MULTILIB_USEDEP}]
+       sys-libs/zlib[${MULTILIB_USEDEP}]
+       ia64? ( sys-libs/libunwind )
+       !minimal? ( >=dev-dotnet/libgdiplus-6.0.2 )
+       nls? ( sys-devel/gettext )
+"
+RDEPEND="
+       ${DEPEND}
+       app-misc/ca-certificates
+       selinux? ( sec-policy/selinux-mono )
+"
+# CMake is used for bundled deps
+BDEPEND="
+       dev-util/cmake
+       sys-devel/bc
+       app-alternatives/yacc
+       pax-kernel? ( sys-apps/elfix )
+"
+
+PATCHES=(
+       "${FILESDIR}"/${PN}-5.12-try-catch.patch
+       "${FILESDIR}"/${PN}-6.12.0.122-disable-automagic-ccache.patch
+)
+
+pkg_pretend() {
+       linux-info_pkg_setup
+
+       if use kernel_linux ; then
+               if linux_config_exists ; then
+                       linux_chkconfig_builtin SYSVIPC || die "SYSVIPC not 
enabled in the kernel"
+               else
+                       # 
https://github.com/gentoo/gentoo/blob/f200e625bda8de696a28338318c9005b69e34710/eclass/linux-info.eclass#L686
+                       ewarn "kernel config not found"
+                       ewarn "If CONFIG_SYSVIPC is not set in your kernel 
.config, mono will hang while compiling."
+                       ewarn "See https://bugs.gentoo.org/261869 for more 
info."
+               fi
+       fi
+
+       # bug #687892
+       check-reqs_pkg_pretend
+}
+
+pkg_setup() {
+       mono-env_pkg_setup
+       check-reqs_pkg_setup
+}
+
+src_prepare() {
+       # We need to sed in the paxctl-ng -mr in the runtime/mono-wrapper.in so 
it don't
+       # get killed in the build proces when MPROTECT is enabled, bug #286280
+       # RANDMMAP kills the build process too, bug #347365
+       # We use paxmark.sh to get PT/XT logic, bug #532244
+       if use pax-kernel ; then
+               ewarn "We are disabling MPROTECT on the mono binary."
+
+               # issue 9 : https://github.com/Heather/gentoo-dotnet/issues/9
+               sed '/exec "/ i\paxmark.sh -mr "$r/@mono_runtime@"' -i 
"${S}"/runtime/mono-wrapper.in || die "Failed to sed mono-wrapper.in"
+       fi
+
+       default
+
+       # PATCHES contains configure.ac patch
+       eautoreconf
+       multilib_copy_sources
+}
+
+multilib_src_configure() {
+       # Many, many unsafe warnings. Miscompiled with -O3 too: bug #915985.
+       append-flags -O2 -fno-strict-aliasing
+       filter-lto
+
+       local myeconfargs=(
+               $(use_with xen xen_opt)
+               --without-ikvm-native
+               --disable-dtrace
+               --enable-system-aot
+               $(multilib_native_use_with doc mcs-docs)
+               $(use_enable nls)
+       )
+
+       # Workaround(?) for bug #779025
+       # May be able to do a real fix by adjusting path used?
+       if multilib_is_native_abi ; then
+               myeconfargs+=( --enable-system-aot )
+       else
+               myeconfargs+=( --disable-system-aot )
+       fi
+
+       econf "${myeconfargs[@]}"
+}
+
+multilib_src_test() {
+       emake -C mcs/tests check
+}
+
+multilib_src_install() {
+       default
+
+       # Remove files not respecting LDFLAGS and that we are not supposed to 
provide, see Fedora
+       # mono.spec and 
http://www.mail-archive.com/mono-devel-list@lists.ximian.com/msg24870.html
+       # for reference.
+       rm -f "${ED}"/usr/lib/mono/{2.0,4.5}/mscorlib.dll.so || die
+       rm -f "${ED}"/usr/lib/mono/{2.0,4.5}/mcs.exe.so || die
+}
+
+pkg_postinst() {
+       # bug #762265
+       cert-sync "${EROOT}"/etc/ssl/certs/ca-certificates.crt
+}

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