diff --git a/Golden_Repo/b/Bison/Bison-3.8.2-GCCcore-11.3.0.eb b/Golden_Repo/b/Bison/Bison-3.8.2-GCCcore-11.3.0.eb
new file mode 100644
index 0000000000000000000000000000000000000000..4ec9c1c877b0664c276a3d1f2b1a9dff329126aa
--- /dev/null
+++ b/Golden_Repo/b/Bison/Bison-3.8.2-GCCcore-11.3.0.eb
@@ -0,0 +1,28 @@
+easyblock = 'ConfigureMake'
+
+name = 'Bison'
+version = '3.8.2'
+
+homepage = 'https://www.gnu.org/software/bison'
+description = """Bison is a general-purpose parser generator that converts an annotated context-free grammar
+ into a deterministic LR or generalized LR (GLR) parser employing LALR(1) parser tables."""
+
+toolchain = {'name': 'GCCcore', 'version': '11.3.0'}
+
+source_urls = [GNU_SOURCE]
+sources = [SOURCELOWER_TAR_GZ]
+checksums = ['06c9e13bdf7eb24d4ceb6b59205a4f67c2c7e7213119644430fe82fbd14a0abb']
+
+builddependencies = [
+    ('M4', '1.4.19'),
+    # use same binutils version that was used when building GCCcore toolchain
+    ('binutils', '2.38', '', True),
+]
+
+
+sanity_check_paths = {
+    'files': ['bin/%s' % x for x in ['bison', 'yacc']] + [('lib/liby.a', 'lib64/liby.a')],
+    'dirs': [],
+}
+
+moduleclass = 'lang'
diff --git a/Golden_Repo/b/Bison/Bison-3.8.2.eb b/Golden_Repo/b/Bison/Bison-3.8.2.eb
new file mode 100644
index 0000000000000000000000000000000000000000..22f927345d6bd179a8cbd93245badc8503824869
--- /dev/null
+++ b/Golden_Repo/b/Bison/Bison-3.8.2.eb
@@ -0,0 +1,29 @@
+easyblock = 'ConfigureMake'
+
+name = 'Bison'
+version = '3.8.2'
+
+homepage = 'https://www.gnu.org/software/bison'
+
+description = """
+ Bison is a general-purpose parser generator that converts an annotated
+ context-free grammar into a deterministic LR or generalized LR (GLR) parser
+ employing LALR(1) parser tables.
+"""
+
+toolchain = SYSTEM
+
+source_urls = [GNU_SOURCE]
+sources = [SOURCELOWER_TAR_GZ]
+checksums = ['06c9e13bdf7eb24d4ceb6b59205a4f67c2c7e7213119644430fe82fbd14a0abb']
+
+builddependencies = [
+    ('M4', '1.4.19'),
+]
+
+sanity_check_paths = {
+    'files': ['bin/%s' % x for x in ['bison', 'yacc']] + [('lib/liby.a', 'lib64/liby.a')],
+    'dirs': [],
+}
+
+moduleclass = 'lang'
diff --git a/Golden_Repo/b/binutils/binutils-2.38-GCCcore-11.3.0.eb b/Golden_Repo/b/binutils/binutils-2.38-GCCcore-11.3.0.eb
new file mode 100644
index 0000000000000000000000000000000000000000..da7b3d38de585373bde8cf54305f22fbef71efeb
--- /dev/null
+++ b/Golden_Repo/b/binutils/binutils-2.38-GCCcore-11.3.0.eb
@@ -0,0 +1,31 @@
+name = 'binutils'
+version = '2.38'
+
+homepage = 'https://directory.fsf.org/project/binutils/'
+description = "binutils: GNU binary utilities"
+
+toolchain = {'name': 'GCCcore', 'version': '11.3.0'}
+
+source_urls = [GNU_SOURCE]
+sources = [SOURCE_TAR_GZ]
+checksums = ['b3f1dc5b17e75328f19bd88250bee2ef9f91fc8cbb7bd48bdb31390338636052']
+
+builddependencies = [
+    ('flex', '2.6.4'),
+    ('Bison', '3.8.2'),
+    # use same binutils version that was used when building GCC toolchain, to 'bootstrap' this binutils
+    ('binutils', version, '', True)
+]
+
+dependencies = [
+    # zlib is a runtime dep to avoid that it gets embedded in libbfd.so,
+    # see https://github.com/easybuilders/easybuild-easyblocks/issues/1350
+    ('zlib', '1.2.12'),
+]
+
+# avoid build failure when makeinfo command is not available
+# see https://sourceware.org/bugzilla/show_bug.cgi?id=15345
+buildopts = 'MAKEINFO=true'
+installopts = buildopts
+
+moduleclass = 'tools'
diff --git a/Golden_Repo/b/binutils/binutils-2.38.eb b/Golden_Repo/b/binutils/binutils-2.38.eb
new file mode 100644
index 0000000000000000000000000000000000000000..19ac8f19011c17e70e8f2fb70fcdffa5f29aa3d1
--- /dev/null
+++ b/Golden_Repo/b/binutils/binutils-2.38.eb
@@ -0,0 +1,26 @@
+name = 'binutils'
+version = '2.38'
+
+homepage = 'https://directory.fsf.org/project/binutils/'
+
+description = "binutils: GNU binary utilities"
+
+toolchain = SYSTEM
+
+source_urls = [GNU_SOURCE]
+sources = [SOURCE_TAR_GZ]
+checksums = ['b3f1dc5b17e75328f19bd88250bee2ef9f91fc8cbb7bd48bdb31390338636052']
+
+builddependencies = [
+    ('flex', '2.6.4'),
+    ('Bison', '3.8.2'),
+    # zlib required, but being linked in statically, so not a runtime dep
+    ('zlib', '1.2.12'),
+]
+
+# avoid build failure when makeinfo command is not available
+# see https://sourceware.org/bugzilla/show_bug.cgi?id=15345
+buildopts = 'MAKEINFO=true'
+installopts = buildopts
+
+moduleclass = 'tools'
diff --git a/Golden_Repo/f/flex/flex-2.6.4-GCCcore-11.3.0.eb b/Golden_Repo/f/flex/flex-2.6.4-GCCcore-11.3.0.eb
new file mode 100644
index 0000000000000000000000000000000000000000..f90ad55fff82347b99fedd7f7306eec6dc400bc2
--- /dev/null
+++ b/Golden_Repo/f/flex/flex-2.6.4-GCCcore-11.3.0.eb
@@ -0,0 +1,35 @@
+name = 'flex'
+version = '2.6.4'
+
+homepage = 'http://flex.sourceforge.net/'
+
+description = """
+ Flex (Fast Lexical Analyzer) is a tool for generating scanners. A scanner,
+ sometimes called a tokenizer, is a program which recognizes lexical patterns
+ in text.
+"""
+
+toolchain = {'name': 'GCCcore', 'version': '11.3.0'}
+toolchainopts = {'pic': True}
+
+source_urls = [
+    'https://github.com/westes/flex/releases/download/v%(version)s/']
+sources = [SOURCELOWER_TAR_GZ]
+checksums = ['e87aae032bf07c26f85ac0ed3250998c37621d95f8bd748b31f15b33c45ee995']
+
+builddependencies = [
+    ('Bison', '3.8.2'),
+    ('help2man', '1.49.2'),
+    # use same binutils version that was used when building GCC toolchain
+    ('binutils', '2.38', '', True),
+]
+
+dependencies = [
+    ('M4', '1.4.19'),
+]
+
+# glibc 2.26 requires _GNU_SOURCE defined to expose reallocarray in the correct
+# header, see https://github.com/westes/flex/issues/241
+preconfigopts = 'export CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE" && '
+
+moduleclass = 'lang'
diff --git a/Golden_Repo/f/flex/flex-2.6.4.eb b/Golden_Repo/f/flex/flex-2.6.4.eb
new file mode 100644
index 0000000000000000000000000000000000000000..8bcd68371988bdd97df74c17e076370676f053d2
--- /dev/null
+++ b/Golden_Repo/f/flex/flex-2.6.4.eb
@@ -0,0 +1,34 @@
+name = 'flex'
+version = '2.6.4'
+
+homepage = 'http://flex.sourceforge.net/'
+
+description = """
+ Flex (Fast Lexical Analyzer) is a tool for generating scanners. A scanner,
+ sometimes called a tokenizer, is a program which recognizes lexical patterns
+ in text.
+"""
+
+toolchain = SYSTEM
+toolchainopts = {'pic': True}
+
+source_urls = [
+    'https://github.com/westes/flex/releases/download/v%(version)s/']
+sources = [SOURCELOWER_TAR_GZ]
+checksums = ['e87aae032bf07c26f85ac0ed3250998c37621d95f8bd748b31f15b33c45ee995']
+
+# Do not add help2man, it depends on Perl and we do not want Perl at SYSTEM level.
+# This results in not building man pages for the flex at SYSTEM level.
+builddependencies = [
+    ('Bison', '3.8.2'),
+]
+
+dependencies = [
+    ('M4', '1.4.19'),
+]
+
+# glibc 2.26 requires _GNU_SOURCE defined to expose reallocarray in the correct
+# header, see https://github.com/westes/flex/issues/241
+preconfigopts = 'export CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE" && '
+
+moduleclass = 'lang'
diff --git a/Golden_Repo/g/GCC/GCC-11.3.0.eb b/Golden_Repo/g/GCC/GCC-11.3.0.eb
new file mode 100644
index 0000000000000000000000000000000000000000..ee32dbadf52c3d269715ea40beaa300d7bd40c72
--- /dev/null
+++ b/Golden_Repo/g/GCC/GCC-11.3.0.eb
@@ -0,0 +1,22 @@
+easyblock = 'Bundle'
+
+name = 'GCC'
+version = '11.3.0'
+
+homepage = 'https://gcc.gnu.org/'
+description = """The GNU Compiler Collection includes front ends for C, C++, Objective-C, Fortran, Java, and Ada,
+ as well as libraries for these languages (libstdc++, libgcj,...)."""
+
+toolchain = SYSTEM
+
+dependencies = [
+    ('GCCcore', version),
+    # binutils built on top of GCCcore, which was built on top of binutils (built with system toolchain)
+    ('binutils', '2.38', '', ('GCCcore', version)),
+]
+
+altroot = 'GCCcore'
+altversion = 'GCCcore'
+
+# this bundle serves as a compiler-only toolchain, so it should be marked as compiler (important for HMNS)
+moduleclass = 'compiler'
diff --git a/Golden_Repo/g/GCCcore/GCCcore-11.3.0.eb b/Golden_Repo/g/GCCcore/GCCcore-11.3.0.eb
new file mode 100644
index 0000000000000000000000000000000000000000..37a26435e717fa6a1d0c972a60a744832ca95375
--- /dev/null
+++ b/Golden_Repo/g/GCCcore/GCCcore-11.3.0.eb
@@ -0,0 +1,76 @@
+easyblock = 'EB_GCC'
+
+name = 'GCCcore'
+version = '11.3.0'
+
+homepage = 'https://gcc.gnu.org/'
+description = """The GNU Compiler Collection includes front ends for C, C++, Objective-C, Fortran, Java, and Ada,
+ as well as libraries for these languages (libstdc++, libgcj,...)."""
+
+toolchain = SYSTEM
+
+source_urls = [
+    # GCC auto-resolving HTTP mirror
+    'https://ftpmirror.gnu.org/gnu/gcc/gcc-%(version)s',
+    # fallback URL for GCC
+    'https://sourceware.org/pub/gcc/releases/gcc-%(version)s',
+    'https://ftpmirror.gnu.org/gnu/gmp',  # idem for GMP
+    'https://ftpmirror.gnu.org/gnu/mpfr',  # idem for MPFR
+    'https://ftpmirror.gnu.org/gnu/mpc',  # idem for MPC
+    'ftp://gcc.gnu.org/pub/gcc/infrastructure/',  # GCC dependencies
+    # HTTPS mirror for GCC dependencies
+    'https://gcc.gnu.org/pub/gcc/infrastructure/',
+    'https://libisl.sourceforge.io/',  # fallback URL for isl
+    'https://sourceware.org/pub/newlib/',  # for newlib
+    'https://github.com/MentorEmbedded/nvptx-tools/archive',  # for nvptx-tools
+]
+sources = [
+    'gcc-%(version)s.tar.gz',
+    'gmp-6.2.1.tar.bz2',
+    'mpfr-4.1.0.tar.bz2',
+    'mpc-1.2.1.tar.gz',
+    'isl-0.24.tar.bz2',
+    'newlib-4.1.0.tar.gz',
+    {'download_filename': '7292758.tar.gz',
+        'filename': 'nvptx-tools-20220412.tar.gz'},
+]
+patches = [
+    'GCCcore-6.2.0-fix-find-isl.patch',
+    'GCCcore-9.3.0_gmp-c99.patch',
+    'GCCcore-9.x-11.x_fix-unsigned-fpe-traps.patch',
+    'GCCcore-11.3.0_fuse-ld-mold.patch',
+]
+checksums = [
+    '98438e6cc7294298b474cf0da7655d9a8c8b796421bb0210531c294a950374ed',  # gcc-11.3.0.tar.gz
+    'eae9326beb4158c386e39a356818031bd28f3124cf915f8c5b1dc4c7a36b4d7c',  # gmp-6.2.1.tar.bz2
+    'feced2d430dd5a97805fa289fed3fc8ff2b094c02d05287fd6133e7f1f0ec926',  # mpfr-4.1.0.tar.bz2
+    '17503d2c395dfcf106b622dc142683c1199431d095367c6aacba6eec30340459',  # mpc-1.2.1.tar.gz
+    'fcf78dd9656c10eb8cf9fbd5f59a0b6b01386205fe1934b3b287a0a1898145c0',  # isl-0.24.tar.bz2
+    'f296e372f51324224d387cc116dc37a6bd397198756746f93a2b02e9a5d40154',  # newlib-4.1.0.tar.gz
+    # nvptx-tools-20220412.tar.gz
+    '20e3c1eeae7f375c36455b6036c4801de16b854910ff54268bbd3346f3685080',
+    # GCCcore-6.2.0-fix-find-isl.patch
+    '5ad909606d17d851c6ad629b4fddb6c1621844218b8d139fed18c502a7696c68',
+    # GCCcore-9.3.0_gmp-c99.patch
+    '0e135e1cc7cec701beea9d7d17a61bab34cfd496b4b555930016b98db99f922e',
+    # GCCcore-9.x-11.x_fix-unsigned-fpe-traps.patch
+    '03a2e4aeda78d398edd680d6a1ba842b8ceb29c126ebb7fe2e3541ddfe4fbed4',
+    # GCCcore-11.3.0_fuse-ld-mold.patch
+    'bba64714f8b84ad58b3b43c0d21b4ffc298274ae699f514ed2934f002146d840',
+]
+
+builddependencies = [
+    ('M4', '1.4.19'),
+    ('binutils', '2.38'),
+]
+
+languages = ['c', 'c++', 'fortran']
+
+withisl = True
+withnvptx = True
+
+# Perl is only required when building with NVPTX support
+if withnvptx:
+    osdependencies = ['perl']
+
+moduleclass = 'compiler'
diff --git a/Golden_Repo/h/help2man/help2man-1.49.2-GCCcore-11.3.0.eb b/Golden_Repo/h/help2man/help2man-1.49.2-GCCcore-11.3.0.eb
new file mode 100644
index 0000000000000000000000000000000000000000..26957da215e2fdcccb7c8b9e5cd9d82247cff786
--- /dev/null
+++ b/Golden_Repo/h/help2man/help2man-1.49.2-GCCcore-11.3.0.eb
@@ -0,0 +1,25 @@
+easyblock = 'ConfigureMake'
+
+name = 'help2man'
+version = '1.49.2'
+
+homepage = 'https://www.gnu.org/software/help2man/'
+description = """help2man produces simple manual pages from the '--help' and '--version' output of other commands."""
+
+toolchain = {'name': 'GCCcore', 'version': '11.3.0'}
+
+source_urls = [GNU_SOURCE]
+sources = [SOURCE_TAR_XZ]
+checksums = ['9e2e0e213a7e0a36244eed6204d902b6504602a578b6ecd15268b1454deadd36']
+
+builddependencies = [
+    # use same binutils version that was used when building GCC toolchain
+    ('binutils', '2.38', '', True),
+]
+
+sanity_check_paths = {
+    'files': ['bin/help2man'],
+    'dirs': [],
+}
+
+moduleclass = 'tools'
diff --git a/Golden_Repo/m/M4/M4-1.4.19-GCCcore-11.3.0.eb b/Golden_Repo/m/M4/M4-1.4.19-GCCcore-11.3.0.eb
new file mode 100644
index 0000000000000000000000000000000000000000..dfdd4df8d108981455f3c27392a2c0e273ba7f9e
--- /dev/null
+++ b/Golden_Repo/m/M4/M4-1.4.19-GCCcore-11.3.0.eb
@@ -0,0 +1,29 @@
+easyblock = 'ConfigureMake'
+
+name = 'M4'
+version = '1.4.19'
+
+homepage = 'https://www.gnu.org/software/m4/m4.html'
+description = """GNU M4 is an implementation of the traditional Unix macro processor. It is mostly SVR4 compatible
+  although it has some extensions (for example, handling more than 9 positional parameters to macros).
+ GNU M4 also has built-in functions for including files, running shell commands, doing arithmetic, etc."""
+
+toolchain = {'name': 'GCCcore', 'version': '11.3.0'}
+
+source_urls = [GNU_SOURCE]
+sources = [SOURCELOWER_TAR_GZ]
+checksums = ['3be4a26d825ffdfda52a56fc43246456989a3630093cced3fbddf4771ee58a70']
+
+# use same binutils version that was used when building GCC toolchain
+builddependencies = [('binutils', '2.38', '', True)]
+
+# '-fgnu89-inline' is required to avoid linking errors with older glibc's,
+# see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
+configopts = "--enable-c++ CPPFLAGS=-fgnu89-inline"
+
+sanity_check_paths = {
+    'files': ['bin/m4'],
+    'dirs': [],
+}
+
+moduleclass = 'devel'
diff --git a/Golden_Repo/m/M4/M4-1.4.19.eb b/Golden_Repo/m/M4/M4-1.4.19.eb
new file mode 100644
index 0000000000000000000000000000000000000000..33d745de5e04f8169ee785671ce3d93e87d802b7
--- /dev/null
+++ b/Golden_Repo/m/M4/M4-1.4.19.eb
@@ -0,0 +1,31 @@
+easyblock = 'ConfigureMake'
+
+name = 'M4'
+version = '1.4.19'
+
+homepage = 'https://www.gnu.org/software/m4/m4.html'
+
+description = """
+ GNU M4 is an implementation of the traditional Unix macro processor. It is
+ mostly SVR4 compatible although it has some extensions (for example, handling
+ more than 9 positional parameters to macros). GNU M4 also has built-in
+ functions for including files, running shell commands, doing arithmetic, etc.
+"""
+
+toolchain = SYSTEM
+
+source_urls = [GNU_SOURCE]
+sources = [SOURCELOWER_TAR_GZ]
+
+checksums = ['3be4a26d825ffdfda52a56fc43246456989a3630093cced3fbddf4771ee58a70']
+
+# '-fgnu89-inline' is required to avoid linking errors with older glibc's,
+# see https://github.com/easybuilders/easybuild-easyconfigs/issues/529
+configopts = "--enable-c++ CPPFLAGS=-fgnu89-inline"
+
+sanity_check_paths = {
+    'files': ['bin/m4'],
+    'dirs': [],
+}
+
+moduleclass = 'devel'
diff --git a/Golden_Repo/z/zlib/zlib-1.2.12-GCCcore-11.3.0.eb b/Golden_Repo/z/zlib/zlib-1.2.12-GCCcore-11.3.0.eb
new file mode 100644
index 0000000000000000000000000000000000000000..0e6e2dc4549aceceacef823977ab33b4483ec8fa
--- /dev/null
+++ b/Golden_Repo/z/zlib/zlib-1.2.12-GCCcore-11.3.0.eb
@@ -0,0 +1,31 @@
+easyblock = 'ConfigureMake'
+
+name = 'zlib'
+version = '1.2.12'
+
+homepage = 'https://www.zlib.net/'
+description = """zlib is designed to be a free, general-purpose, legally unencumbered -- that is,
+ not covered by any patents -- lossless data-compression library for use on virtually any
+ computer hardware and operating system."""
+
+toolchain = {'name': 'GCCcore', 'version': '11.3.0'}
+toolchainopts = {'pic': True}
+
+source_urls = ['https://zlib.net/fossils']
+sources = [SOURCELOWER_TAR_GZ]
+patches = ['zlib-%(version)s_fix-CC-logic-in-configure.patch']
+checksums = [
+    '91844808532e5ce316b3c010929493c0244f3d37593afd6de04f71821d5136d9',  # zlib-1.2.12.tar.gz
+    # zlib-1.2.12_fix-CC-logic-in-configure.patch
+    'f35eb05334a4f8d7b40b6c5610a6369f654863b5fa1a19c2507888f918025238',
+]
+
+# use same binutils version that was used when building GCC toolchain
+builddependencies = [('binutils', '2.38', '', True)]
+
+sanity_check_paths = {
+    'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a', 'lib/libz.%s' % SHLIB_EXT],
+    'dirs': [],
+}
+
+moduleclass = 'lib'
diff --git a/Golden_Repo/z/zlib/zlib-1.2.12.eb b/Golden_Repo/z/zlib/zlib-1.2.12.eb
new file mode 100644
index 0000000000000000000000000000000000000000..5f9b9205d4e4e1ec0de200896552dc956b8d9d0d
--- /dev/null
+++ b/Golden_Repo/z/zlib/zlib-1.2.12.eb
@@ -0,0 +1,37 @@
+easyblock = 'ConfigureMake'
+
+name = 'zlib'
+version = '1.2.12'
+
+homepage = 'https://www.zlib.net/'
+
+description = """
+ zlib is designed to be a free, general-purpose, legally unencumbered -- that
+ is, not covered by any patents -- lossless data-compression library for use
+ on virtually any computer hardware and operating system.
+"""
+
+toolchain = SYSTEM
+toolchainopts = {'pic': True}
+
+source_urls = ['https://zlib.net/fossils/']
+sources = [SOURCELOWER_TAR_GZ]
+patches = ['zlib-%(version)s_fix-CC-logic-in-configure.patch']
+checksums = [
+    '91844808532e5ce316b3c010929493c0244f3d37593afd6de04f71821d5136d9',  # zlib-1.2.12.tar.gz
+    # zlib-1.2.12_fix-CC-logic-in-configure.patch
+    'f35eb05334a4f8d7b40b6c5610a6369f654863b5fa1a19c2507888f918025238',
+]
+
+# need to take care of $CFLAGS ourselves with dummy toolchain
+# we need to add -fPIC, but should also include -O* option to avoid
+# compiling with -O0 (default for GCC)
+buildopts = 'CFLAGS="-O2 -fPIC"'
+
+sanity_check_paths = {
+    'files': ['include/zconf.h', 'include/zlib.h', 'lib/libz.a',
+              'lib/libz.%s' % SHLIB_EXT],
+    'dirs': [],
+}
+
+moduleclass = 'lib'