diff --git a/dev-ada/gprbuild/Manifest b/dev-ada/gprbuild/Manifest
index 492408c6c4bef..ed748ce42b244 100644
--- a/dev-ada/gprbuild/Manifest
+++ b/dev-ada/gprbuild/Manifest
@@ -1,4 +1,6 @@
+DIST 408ec35c3bb86bd227db3da55d3e1e0c572a56e3?filename=gprbuild-2020-20200429-19BD2-src.tar.gz 2489399 BLAKE2B 3a036cb40bbe5522af63c376a672384093901b44df6fd74013f1eff9d269c2f5056224ab5e7d59b6f3cf126cd14dd30420056b09e887851351462de59f700e3a SHA512 d2ff6a5d8281d332a31533c7a5744b6169fd250c9086373fd658486c1e529564d9830b9ef3b2dfcbec5f8c1ba50d244a9eb45bf8fdccd53f8b711dcf29258dfd
DIST gprbuild-2019-20190517-194D8-src.tar.gz 2507961 BLAKE2B 0f70d94cb0db9ddc1dd308862aaa305a91965a62a936cfbdde2ae9f3f735f0cc3d69596b09da4b979a1d7923087ab0ec5cf2d6541551f057b5e8e0c499065a90 SHA512 0388d7e6cdf625fef40b33da764091b3283dd88714c64ecfad4b5e99253f183b1a9b717c19281e6d45cc4277a05fadb2e2ace394d6f30638664b66c97123052b
DIST gprbuild-gpl-2017-src.tar.gz 2454957 BLAKE2B 890e5aa29e9f8fa8b140988ee8e5d6042640c34fe0877acde959de803bf690bb33c63b1c7e7db486f804882bddd77ab76ffbaa4dd27da327e21ed0376cadb99d SHA512 12f3682d64ce0718de4940c1e71a4380b20021805d88543842dbf3b5ce5d518c23a6b2d868565579baf81efa1d8cf05c7778253162f0df5d7adc0eb1865c9f88
DIST xmlada-2019-20190429-19B9D-src.tar.gz 1582603 BLAKE2B e2be3e7c0c8b843bfc808a3dd726235a82588caed8c919975a97ce34c72d6d634361bbc34208590210936add9e2f881b59d01168ef79abed1e489c50b27094d8 SHA512 f8e0e25b0aee9a7a18223ae7761603082af55134f062c767d0cd0dbf0dbcb2058fc7c57532b567fb2c6efa464a53ead57b300578e98962025866e5c3ad73e380
+DIST xmlada-2020-20200429-19A99-src.tar.gz 1533111 BLAKE2B e2c25e103c5c560cf7c9580118580e2952f3ef56c244b0f76c7f484e5629b684d5ee546d2d40520e1a4bf963271d360522423f4e7d81570f7dc1dbc8424c9147 SHA512 e53dd1fba504d2aa91ce29ea381c62adea12c5d8c72cd87396b903143279456cc6547c18035f6e988e95bd93607360075789532378f33cbe23bef9b49c8d984c
DIST xmlada-gpl-2017-src.tar.gz 1578393 BLAKE2B 7b4894040b6044e86c96cbd530ebda5c0cfc4ad0e2b472d46798a93f535aca0916b03385a3aef49bd4e59d508a9665c856360e9cab0a4f67b15091228b629d81 SHA512 371f6adc01550a4bb13204ec0404dc1165438db595f4346813e5a23a155de74c857c40c55adde173919c2fe35b3b91d78b235c9718ee86bc848e62ddfd7fa2b4
diff --git a/dev-ada/gprbuild/files/gprbuild-2020-gentoo.patch b/dev-ada/gprbuild/files/gprbuild-2020-gentoo.patch
new file mode 100644
index 0000000000000..66ec4f7f0dd18
--- /dev/null
+++ b/dev-ada/gprbuild/files/gprbuild-2020-gentoo.patch
@@ -0,0 +1,274 @@
+--- a/src/gprlib.adb 2019-06-02 10:57:49.807002425 +0200
++++ b/src/gprlib.adb 2019-06-02 11:01:32.986518447 +0200
+@@ -266,7 +266,9 @@
+
+ Driver_Name : Name_Id := No_Name;
+
+- Gnatbind_Name : String_Access := new String'("gnatbind");
++ Gnatbind_Name : String_Access := new String'("@GNATBIND@");
++
++ Gnatbind_Path_Option : constant String := "--gnatbind_path=";
+
+ Compiler_Name : String_Access := new String'("gcc");
+
+@@ -2081,7 +2083,7 @@
+ and then Line (Last - 2 .. Last) = "gcc"
+ then
+ Gnatbind_Name :=
+- new String'(Line (1 .. Last - 3) & "gnatbind");
++ new String'(Line (1 .. Last - 3) & "@GNATBIND@");
+ Objcopy_Name :=
+ new String'(Line (1 .. Last - 3) & "objcopy");
+
+@@ -2089,7 +2091,7 @@
+ and then Line (Last - 6 .. Last) = "gcc.exe"
+ then
+ Gnatbind_Name :=
+- new String'(Line (1 .. Last - 7) & "gnatbind");
++ new String'(Line (1 .. Last - 7) & "@GNATBIND@");
+ Objcopy_Name :=
+ new String'(Line (1 .. Last - 7) & "objcopy");
+ end if;
+@@ -2241,7 +2243,13 @@
+ Mapping_File_Name := new String'(Line (1 .. Last));
+
+ when Binding_Options =>
+- Binding_Options_Table.Append (Line (1 .. Last));
++ if Last > Gnatbind_Path_Option'Length
++ and then Line (1 .. Gnatbind_Path_Option'Length) =
++ Gnatbind_Path_Option then
++ null;
++ else
++ Binding_Options_Table.Append (Line (1 .. Last));
++ end if;
+
+ when Copy_Source_Dir =>
+ Copy_Source_Directory := new String'(Line (1 .. Last));
+--- a/share/gprconfig/compilers.xml 2019-06-01 21:29:57.611722804 +0200
++++ b/share/gprconfig/compilers.xml 2019-06-01 21:42:56.000608601 +0200
+@@ -20,15 +20,15 @@
+
+
+ GCC
+- (.*-wrs-.*|.*-sysgo.*|.*-elf-.*|.*-eabi-.*|.*-eabispe-.*|avr-.*|.*-elinos-linux.*|.*-generic-linux-gnu-|.*-pc-mingw32.*|.*-xcoff-.*|arm-linux-androideabi-|arm-linux-gnueabi-|arm-linux-gnueabihf-|e500v2-gnu-linux-|powerpc-.*-linux.*-|.*-darwin.*-|aarch64-linux-gnu-)?gcc
++ (.*-wrs-.*|.*-sysgo.*|.*-elf-.*|.*-eabi-.*|.*-eabispe-.*|avr-.*|.*-elinos-linux.*|.*-generic-linux-gnu-|.*-pc-mingw32.*|.*-xcoff-.*|arm-linux-androideabi-|arm-linux-gnueabi-|arm-linux-gnueabihf-|e500v2-gnu-linux-|powerpc-.*-linux.*-|.*-darwin.*-|aarch64-linux-gnu-)?gcc-@VER@
+
+- ${PREFIX}gcc -v
++ ${PREFIX}gcc-@VER@ -v
+
+
+
+ C
+
+- ${PREFIX}gcc -dumpmachine
++ ${PREFIX}gcc-@VER@ -dumpmachine
+
+
+
+@@ -170,14 +170,14 @@
+ -->
+
+ GNAT
+- (.*-wrs-.*|.*-sysgo.*|.*-elf-.*|.*-eabi-.*|.*-eabispe-.*|avr-.*|.*-elinos-linux.*|.*-generic-linux-gnu-|.*-pc-mingw32.*|.*-xcoff-.*|arm-linux-androideabi-|arm-linux-gnueabi-|arm-linux-gnueabihf-|e500v2-gnu-linux-|powerpc-.*-linux.*-|.*-darwin.*-|aarch64-linux-gnu-|.*-qnx.*)?gnatls
++ (.*-wrs-.*|.*-sysgo.*|.*-elf-.*|.*-eabi-.*|.*-eabispe-.*|avr-.*|.*-elinos-linux.*|.*-generic-linux-gnu-|.*-pc-mingw32.*|.*-xcoff-.*|arm-linux-androideabi-|arm-linux-gnueabi-|arm-linux-gnueabihf-|e500v2-gnu-linux-|powerpc-.*-linux.*-|.*-darwin.*-|aarch64-linux-gnu-|.*-qnx.*)?gnatls-@VER@
+
+- ${PREFIX}gnatls -v --version
++ ${PREFIX}gnatls-@VER@ -v --version
+
+
+ Ada
+
+- ${PREFIX}gcc -v
++ ${PREFIX}gcc-@VER@ -v
+
+
+
+@@ -187,67 +187,11 @@
+ \.\./$TARGET/lib/gnat/(.*)/adalib/
+
+
+- ${PREFIX}gcc -dumpmachine
++ ${PREFIX}gcc-@VER@ -dumpmachine
+
+
+
+
+-
+-
+-
+- GNAT_CODEPEER
+- (.*gnsa-|.*codepeer-)gnatls
+-
+- ${PREFIX}gnatls -v
+-
+-
+- Ada,C,C++
+-
+- ${PREFIX}gcc -v
+-
+-
+-
+- \.\./lib/gcc/.*/$gcc_version/adalib/
+- \.\./lib/gnat/(.*)/adalib/
+- \.\./lib/gcc/.*/$gcc_version/rts-(.*)/adalib/
+-
+- codepeer
+-
+-
+-
+-
+-
+- GNAT_LLVM
+- (llvm-)gnatls
+-
+- ${PREFIX}gnatls -v
+-
+-
+- Ada
+-
+- ${PREFIX}gcc -v
+-
+-
+-
+- \.\./lib/rts-native/adalib/
+-
+- llvm
+-
+-
+-
+-
+- C_LLVM
+- clang
+-
+- clang --version
+-
+-
+-
+-
+- C
+- llvm
+-
+-
+
+
+ C++_LLVM
+@@ -262,45 +206,6 @@
+ llvm
+
+
+-
+-
+-
+- GNAT_C
+- (c-)gnatls
+-
+- ${PREFIX}gnatls -v
+-
+-
+- Ada
+-
+- ${PREFIX}gcc -v
+-
+-
+-
+- \.\./libexec/gnat_ccg/lib/gcc/.*/$gcc_version/adalib/
+- \.\./libexec/gnat_ccg/lib/gcc/.*/$gcc_version/rts-(.*)/adalib/
+- \.\./lib/gnat/(.*)/adalib/
+-
+- c
+-
+-
+-
+-
+-
+- GNAT_DOTNET
+- (.*dotnet-)gnatls
+-
+- ${PREFIX}gnatls -v
+-
+-
+- Ada
+-
+- \.\./lib/dotgnat/adalib/
+- \.\./lib/dotgnat/rts-(.*)/adalib/
+-
+- dotnet
+-
+-
+
+
+
+@@ -421,21 +326,6 @@
+
+
+
+-
+-
+- LLVM
+- clang
+-
+- clang -v
+-
+-
+- C,C++
+-
+- clang -dumpmachine
+-
+-
+-
+-
+
+
+ WINDRES
+--- a/share/gprconfig/gnat.xml 2019-06-01 21:53:53.383281607 +0200
++++ b/share/gprconfig/gnat.xml 2019-06-01 21:57:08.414196529 +0200
+@@ -60,7 +60,7 @@
+ &filter_gnat;
+
+ package Compiler is
+- for Driver ("Ada") use "${PATH(ada)}${PREFIX(ada)}gcc";
++ for Driver ("Ada") use "${PATH(ada)}${PREFIX(ada)}gcc-@VER@";
+ for Language_Kind ("Ada") use "unit_based";
+ for Dependency_Kind ("Ada") use "ALI_File";
+ for Leading_Required_Switches ("Ada") use
+@@ -77,6 +77,9 @@
+ for Objects_Path_File ("Ada") use "ADA_PRJ_OBJECTS_FILE";
+ for Driver ("Ada") use
+ "${GPRCONFIG_PREFIX}libexec/gprbuild/gprbind";
++ for Switches ("Ada") use ("--gnatbind_path=gnatbind-@VER@");
++ for Required_Switches ("Ada") use
++ Binder'Required_Switches ("Ada") & ("--RTS=${RUNTIME_DIR(ada)}");
+ end Binder;
+
+ for Toolchain_Version ("Ada") use "GNAT ${VERSION(ada)}";
+--- a/share/gprconfig/c.xml 2019-06-01 21:57:36.244755708 +0200
++++ b/share/gprconfig/c.xml 2019-06-01 21:59:14.919191663 +0200
+@@ -14,7 +14,7 @@
+
+
+ package Compiler is
+- for Driver ("C") use "${PATH(c)}${PREFIX(c)}gcc";
++ for Driver ("C") use "${PATH(c)}${PREFIX(c)}gcc-@VER@";
+ end Compiler;
+
+
+--- a/share/gprconfig/linker.xml 2019-06-01 21:59:34.546880368 +0200
++++ b/share/gprconfig/linker.xml 2019-06-01 22:00:50.906668730 +0200
+@@ -1015,7 +1015,7 @@
+
+
+ for Library_Partial_Linker use
+- ("${PATH(ada)}${PREFIX(ada)}gcc", "-nostdlib", "-Wl,-r", "-o");
++ ("${PATH(ada)}${PREFIX(ada)}gcc-@VER@", "-nostdlib", "-Wl,-r", "-no-pie", "-o");
+
+
+
+@@ -1034,7 +1034,7 @@
+
+
+ for Library_Partial_Linker use
+- ("${PATH(c)}${PREFIX(c)}gcc", "-nostdlib", "-Wl,-r", "-o");
++ ("${PATH(c)}${PREFIX(c)}gcc-@VER@", "-nostdlib", "-Wl,-r", "-no-pie", "-o");
+
+
+
diff --git a/dev-ada/gprbuild/gprbuild-2020.ebuild b/dev-ada/gprbuild/gprbuild-2020.ebuild
new file mode 100644
index 0000000000000..fa4ded0b7f3ff
--- /dev/null
+++ b/dev-ada/gprbuild/gprbuild-2020.ebuild
@@ -0,0 +1,79 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+ADA_COMPAT=( gnat_201{7,8,9} )
+
+inherit ada toolchain-funcs multiprocessing
+
+MYP=${P}-20200429-19BD2-src
+XMLADA=xmlada-${PV}-20200429-19A99-src
+
+DESCRIPTION="Multi-Language Management"
+HOMEPAGE="http://libre.adacore.com/"
+SRC_URI="
+ https://community.download.adacore.com/v1/408ec35c3bb86bd227db3da55d3e1e0c572a56e3?filename=${MYP}.tar.gz
+ https://community.download.adacore.com/v1/c799502295baf074ad17b48c50f621879c392c57?filename=${XMLADA}.tar.gz
+ -> ${XMLADA}.tar.gz"
+LICENSE="GPL-3"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE=""
+
+DEPEND="${ADA_DEPS}"
+RDEPEND="${DEPEND}"
+
+S="${WORKDIR}"/${MYP}
+
+REQUIRED_USE="${ADA_REQUIRED_USE}"
+PATCHES=( "${FILESDIR}"/${P}-gentoo.patch )
+
+src_prepare() {
+ default
+ sed -i \
+ -e "s:@VER@:${GCC_PV}:g" \
+ share/gprconfig/compilers.xml \
+ share/gprconfig/gnat.xml \
+ share/gprconfig/c.xml \
+ share/gprconfig/linker.xml \
+ || die
+ sed -i \
+ -e "s:@GNATBIND@:${GNATBIND}:g" \
+ src/gprlib.adb \
+ || die
+}
+
+src_configure() {
+ emake prefix="${D}"/usr setup
+}
+
+bin_progs="gprbuild gprconfig gprclean gprinstall gprname gprls"
+lib_progs="gprlib gprbind"
+
+src_compile() {
+ local xmlada_src="../${XMLADA}"
+ incflags="-Isrc -Igpr/src -I${xmlada_src}/sax -I${xmlada_src}/dom \
+ -I${xmlada_src}/schema -I${xmlada_src}/unicode \
+ -I${xmlada_src}/input_sources"
+ gcc -c ${CFLAGS} gpr/src/gpr_imports.c -o gpr_imports.o || die
+ for bin in ${bin_progs}; do
+ gnatmake -j$(makeopts_jobs) ${incflags} $ADAFLAGS ${bin}-main \
+ -o ${bin} -largs ${LDFLAGS} gpr_imports.o || die
+ done
+ for lib in $lib_progs; do
+ gnatmake -j$(makeopts_jobs) ${incflags} ${lib} $ADAFLAGS \
+ -largs ${LDFLAGS} gpr_imports.o || die
+ done
+}
+
+src_install() {
+ dobin ${bin_progs}
+ exeinto /usr/libexec/gprbuild
+ doexe ${lib_progs}
+ insinto /usr/share/gprconfig
+ doins share/gprconfig/*
+ insinto /usr/share/gpr
+ doins share/_default.gpr
+ einstalldocs
+}