diff --git a/.gitmodules b/.gitmodules
index 0ef61b5..84114ba 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -376,3 +376,21 @@
 [submodule "update-alternatives"]
 	path = update-alternatives
 	url = ../../rpm/dpkg.git
+[submodule "kernel-default"]
+	path = kernel-default
+	url = ../../rpm/kernel-source.git
+[submodule "dummy-release"]
+	path = dummy-release
+	url = ../../rpm/dummy-release.git
+[submodule "build"]
+	path = build
+	url = ../../rpm/build.git
+[submodule "psmisc"]
+	path = psmisc
+	url = ../../rpm/psmisc.git
+[submodule "perl-TimeDate"]
+	path = perl-TimeDate
+	url = ../../rpm/perl-TimeDate.git
+[submodule "perl-YAML-LibYAML"]
+	path = perl-YAML-LibYAML
+	url = ../../rpm/perl-YAML-LibYAML.git
diff --git a/_config b/_config
index 96cbdc0..c8963af 100644
--- a/_config
+++ b/_config
@@ -47,6 +47,34 @@ BuildFlags: excludebuild:python-pyparsing:test
 BuildFlags: excludebuild:python-flit-core
 BuildFlags: excludebuild:python-flit-core:test
 BuildFlags: excludebuild:e2fsprogs:fuse2fs
+
+# XXX
+BuildFlags: excludebuild:glibc:cross-aarch64
+BuildFlags: excludebuild:glibc:cross-riscv64
+BuildFlags: excludebuild:binutils:aarch64
+BuildFlags: excludebuild:binutils:arm
+BuildFlags: excludebuild:binutils:avr
+BuildFlags: excludebuild:binutils:epiphany
+BuildFlags: excludebuild:binutils:hppa
+BuildFlags: excludebuild:binutils:hppa64
+BuildFlags: excludebuild:binutils:i386
+BuildFlags: excludebuild:binutils:ia64
+BuildFlags: excludebuild:binutils:m68k
+BuildFlags: excludebuild:binutils:mips
+BuildFlags: excludebuild:binutils:ppc
+BuildFlags: excludebuild:binutils:ppc64
+BuildFlags: excludebuild:binutils:ppc64le
+BuildFlags: excludebuild:binutils:pru
+BuildFlags: excludebuild:binutils:riscv64
+BuildFlags: excludebuild:binutils:rx
+BuildFlags: excludebuild:binutils:s390
+BuildFlags: excludebuild:binutils:s390x
+BuildFlags: excludebuild:binutils:sparc
+BuildFlags: excludebuild:binutils:sparc64
+BuildFlags: excludebuild:binutils:spu
+BuildFlags: excludebuild:binutils:xtensa
+BuildFlags: excludebuild:coreutils:single
+BuildFlags: excludebuild:libtool:testsuite
 %else
 BuildFlags: excludebuild:gtk3:doc
 BuildFlags: excludebuild:jflex
diff --git a/build b/build
new file mode 160000
index 0000000..62e085e
--- /dev/null
+++ b/build
@@ -0,0 +1 @@
+Subproject commit 62e085e2aca5fa7484e7191a12108b4d779dc710
diff --git a/dummy-release b/dummy-release
new file mode 160000
index 0000000..b8072de
--- /dev/null
+++ b/dummy-release
@@ -0,0 +1 @@
+Subproject commit b8072deedf1bf028f6cbdf5afcb54c385c7a340e
diff --git a/kernel-default b/kernel-default
new file mode 160000
index 0000000..c04bef6
--- /dev/null
+++ b/kernel-default
@@ -0,0 +1 @@
+Subproject commit c04bef693dbbc94ca7a283efcef97b47e86e4fd9
diff --git a/perl-TimeDate b/perl-TimeDate
new file mode 160000
index 0000000..8c96360
--- /dev/null
+++ b/perl-TimeDate
@@ -0,0 +1 @@
+Subproject commit 8c96360c39c68dfe6e818853f3c6e9e0714286ed
diff --git a/perl-YAML-LibYAML b/perl-YAML-LibYAML
new file mode 160000
index 0000000..46d9ccc
--- /dev/null
+++ b/perl-YAML-LibYAML
@@ -0,0 +1 @@
+Subproject commit 46d9ccc2a8081fcd905daa60cc9a194edcc95721
diff --git a/psmisc b/psmisc
new file mode 160000
index 0000000..ec7c60b
--- /dev/null
+++ b/psmisc
@@ -0,0 +1 @@
+Subproject commit ec7c60bc9f3b9e0b4b22b934d57dec2f1b9134d2