commit:     30a7909df3e687d496f31a8e1efc7e3983321a5b
Author:     Alfredo Tupone <tupone <AT> gentoo <DOT> org>
AuthorDate: Wed May 12 18:48:58 2021 +0000
Commit:     Alfredo Tupone <tupone <AT> gentoo <DOT> org>
CommitDate: Wed May 12 18:48:58 2021 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=30a7909d

eclass/ada.eclass: adding gnat_2020

Signed-off-by: Alfredo Tupone <tupone <AT> gentoo.org>

 dev-lang/gnat-gpl/gnat-gpl-2019-r1.ebuild | 141 ++++++++++++++++++++++++++++++
 eclass/ada.eclass                         |  12 ++-
 2 files changed, 152 insertions(+), 1 deletion(-)

diff --git a/dev-lang/gnat-gpl/gnat-gpl-2019-r1.ebuild 
b/dev-lang/gnat-gpl/gnat-gpl-2019-r1.ebuild
new file mode 100644
index 00000000000..6f1e39dc569
--- /dev/null
+++ b/dev-lang/gnat-gpl/gnat-gpl-2019-r1.ebuild
@@ -0,0 +1,141 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+PATCH_GCC_VER=8.3.0
+PATCH_VER="3"
+
+TOOLCHAIN_GCC_PV=8.3.1
+
+REL=8
+MYP=gcc-${REL}-${PV}-20190517-18C94-src
+GNATDIR=gnat-${PV}-20190517-18C94-src
+INTFDIR=gcc-interface-${REL}-${PV}-20190510-18F59-src
+BTSTRP_X86=gnat-gpl-2014-x86-linux-bin
+BTSTRP_AMD64=gnat-gpl-2014-x86_64-linux-bin
+
+# we provide own tarball below
+GCC_TARBALL_SRC_URI="
+       http://mirrors.cdn.adacore.com/art/5cdf865331e87aa2cdf16b49
+               -> ${GNATDIR}.tar.gz
+       http://mirrors.cdn.adacore.com/art/5cdf8a0731e87a8f1d425049
+               -> ${MYP}.tar.gz
+       http://mirrors.cdn.adacore.com/art/5cdf87cc31e87aa2cdf16b50
+               -> ${INTFDIR}.tar.gz
+       bootstrap? (
+               amd64? (
+                       
http://mirrors.cdn.adacore.com/art/564b3ebec8e196b040fbe66c ->
+                       ${BTSTRP_AMD64}.tar.gz
+               )
+               x86? (
+                       
http://mirrors.cdn.adacore.com/art/564b3e9dc8e196b040fbe248 ->
+                       ${BTSTRP_X86}.tar.gz
+               )
+       )"
+
+inherit toolchain-funcs toolchain
+
+DESCRIPTION="GNAT Ada Compiler - GPL version"
+HOMEPAGE="http://libre.adacore.com/";
+
+LICENSE+=" GPL-2 GPL-3"
+KEYWORDS="amd64 x86"
+IUSE="+ada +bootstrap"
+RESTRICT="!test? ( test )"
+
+RDEPEND="!sys-devel/gcc:${TOOLCHAIN_GCC_PV}"
+DEPEND="${RDEPEND}
+       elibc_glibc? ( >=sys-libs/glibc-2.13 )
+       >=sys-devel/binutils-2.20"
+
+S="${WORKDIR}"/${MYP}
+PDEPEND="${PDEPEND} elibc_glibc? ( >=sys-libs/glibc-2.13 )"
+
+pkg_setup() {
+       toolchain_pkg_setup
+
+       if use amd64; then
+               BTSTRP=${BTSTRP_AMD64}
+       else
+               BTSTRP=${BTSTRP_X86}
+       fi
+
+       if use bootstrap; then
+               GCC="${WORKDIR}"/${BTSTRP}/bin/gcc
+       else
+               GCC=${ADA:-$(tc-getCC)}
+       fi
+
+       gnatbase=$(basename ${GCC})
+       gnatpath=$(dirname ${GCC})
+
+       GNATMAKE=${gnatbase/gcc/gnatmake}
+       if [[ ${gnatpath} != "." ]] ; then
+               GNATMAKE="${gnatpath}/${GNATMAKE}"
+       fi
+}
+
+src_unpack() {
+       if ! use bootstrap && [[ -z "$(type ${GNATMAKE} 2>/dev/null)" ]] ; then
+               eerror "You need a gcc compiler that provides the Ada Compiler:"
+               eerror "1) use gcc-config to select the right compiler or"
+               eerror "2) set the bootstrap use flag"
+               die "ada compiler not available"
+       fi
+
+       toolchain_src_unpack
+       if use bootstrap; then
+               rm ${BTSTRP}/libexec/gcc/*/4.7.4/ld || die
+       fi
+}
+
+src_prepare() {
+       CC=${GCC}
+       CXX="${gnatbase/gcc/g++}"
+       GNATBIND="${gnatbase/gcc/gnatbind}"
+       GNATLINK="${gnatbase/gcc/gnatlink}"
+       GNATLS="${gnatbase/gcc/gnatls}"
+       if [[ ${gnatpath} != "." ]] ; then
+               CXX="${gnatpath}/${CXX}"
+               GNATBIND="${gnatpath}/${GNATBIND}"
+               GNATLINK="${gnatpath}/${GNATLINK}"
+               GNATLS="${gnatpath}/${GNATLS}"
+       fi
+       mkdir bin || die
+       ln -s $(which ${GCC}) bin/gcc || die
+       ln -s $(which ${CXX}) bin/g++ || die
+       ln -s $(which ${GNATMAKE}) bin/gnatmake || die
+       ln -s $(which ${GNATBIND}) bin/gnatbind || die
+       ln -s $(which ${GNATLINK}) bin/gnatlink || die
+       ln -s $(which ${GNATLS}) bin/gnatls || die
+
+       cd ..
+       mv ${GNATDIR}/src/ada ${MYP}/gcc/ || die
+       mv ${INTFDIR} ${MYP}/gcc/ada/gcc-interface || die
+       eapply "${FILESDIR}"/${P}-gentoo.patch
+       rm patch/27*.patch || die
+       rm patch/28*.patch || die
+       cd -
+       sed -i \
+               -e 's:$(P) ::g' \
+               gcc/ada/gcc-interface/Makefile.in \
+               || die "sed failed"
+       toolchain_src_prepare
+}
+
+src_configure() {
+       export PATH=${PWD}/bin:${PATH}
+       downgrade_arch_flags "$(gcc-version)"
+       toolchain_src_configure
+}
+
+pkg_postinst() {
+       toolchain_pkg_postinst
+       einfo "This provide the GNAT compiler with gcc for ada/c/c++ and more"
+       einfo "The compiler binary is ${CTARGET}-gcc-${TOOLCHAIN_GCC_PV}"
+       einfo "Even if the c/c++ compilers are using almost the same patched"
+       einfo "source as the sys-devel/gcc package its use is not extensively"
+       einfo "tested, and not supported for updating your system, except for 
ada"
+       einfo "related packages"
+}

diff --git a/eclass/ada.eclass b/eclass/ada.eclass
index 4b568a8c20a..2e409fd9305 100644
--- a/eclass/ada.eclass
+++ b/eclass/ada.eclass
@@ -58,7 +58,7 @@ EXPORT_FUNCTIONS pkg_setup
 # @DESCRIPTION:
 # All supported Ada implementations, most preferred last.
 _ADA_ALL_IMPLS=(
-       gnat_2016 gnat_2017 gnat_2018 gnat_2019
+       gnat_2016 gnat_2017 gnat_2018 gnat_2019 gnat_2020
 )
 readonly _ADA_ALL_IMPLS
 
@@ -86,6 +86,9 @@ _ada_impl_supported() {
                gnat_201[6789])
                        return 0
                        ;;
+               gnat_2020)
+                       return 0
+                       ;;
                *)
                        [[ ${ADA_COMPAT_NO_STRICT} ]] && return 1
                        die "Invalid implementation in ADA_COMPAT: ${impl}"
@@ -181,6 +184,10 @@ ada_export() {
                        impl=${1}
                        shift
                        ;;
+               gnat_2020)
+                       impl=${1}
+                       shift
+                       ;;
                *)
                        impl=${EADA}
                        if [[ -z ${impl} ]]; then
@@ -204,6 +211,9 @@ ada_export() {
                gnat_2019)
                        gcc_pv=8.3.1
                        ;;
+               gnat_2020)
+                       gcc_pv=9.3.1
+                       ;;
                *)
                        gcc_pv="9.9.9"
                        ;;

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