diff --git a/configs/autobuild/armv5-ctng-linux-gnueabi_defconfig b/configs/autobuild/armv5-ctng-linux-gnueabi_defconfig
new file mode 100644
index 0000000000..eb17e100a3
--- /dev/null
+++ b/configs/autobuild/armv5-ctng-linux-gnueabi_defconfig
@@ -0,0 +1,11 @@
+BR2_HOSTARCH="x86"
+BR2_arm=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/armv5-ctng-linux-gnueabi.tar.xz"
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="armv5-ctng-linux-gnueabi"
+BR2_TOOLCHAIN_EXTERNAL_GCC_4_8=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_12=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/armv7-ctng-linux-gnueabihf_defconfig b/configs/autobuild/armv7-ctng-linux-gnueabihf_defconfig
new file mode 100644
index 0000000000..f3c8732ff3
--- /dev/null
+++ b/configs/autobuild/armv7-ctng-linux-gnueabihf_defconfig
@@ -0,0 +1,14 @@
+BR2_HOSTARCH="x86"
+BR2_arm=y
+BR2_cortex_a9=y
+BR2_ARM_ENABLE_NEON=y
+BR2_ARM_ENABLE_VFP=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/armv7-ctng-linux-gnueabihf.tar.xz"
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="armv7-ctng-linux-gnueabihf"
+BR2_TOOLCHAIN_EXTERNAL_GCC_4_8=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_12=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-aarch64-glibc_defconfig b/configs/autobuild/br-aarch64-glibc_defconfig
new file mode 100644
index 0000000000..30560d2a26
--- /dev/null
+++ b/configs/autobuild/br-aarch64-glibc_defconfig
@@ -0,0 +1,10 @@
+BR2_HOSTARCH="x86_64"
+BR2_aarch64=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-aarch64-glibc-2017.02-102-g6ce3806.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_1=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-arc-full-internal_defconfig b/configs/autobuild/br-arc-full-internal_defconfig
new file mode 100644
index 0000000000..87f208bb65
--- /dev/null
+++ b/configs/autobuild/br-arc-full-internal_defconfig
@@ -0,0 +1,4 @@
+BR2_arcle=y
+BR2_TOOLCHAIN_BUILDROOT_INET_RPC=y
+BR2_TOOLCHAIN_BUILDROOT_LOCALE=y
+BR2_TOOLCHAIN_BUILDROOT_CXX=y
diff --git a/configs/autobuild/br-arcle-hs38_defconfig b/configs/autobuild/br-arcle-hs38_defconfig
new file mode 100644
index 0000000000..ad64e4b582
--- /dev/null
+++ b/configs/autobuild/br-arcle-hs38_defconfig
@@ -0,0 +1,12 @@
+BR2_HOSTARCH="x86_64"
+BR2_arcle=y
+BR2_archs38=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-arcle-hs38-full-2017.02-102-g6ce3806.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_6=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_1=y
+BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
+BR2_TOOLCHAIN_EXTERNAL_INET_RPC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-arm-basic_defconfig b/configs/autobuild/br-arm-basic_defconfig
new file mode 100644
index 0000000000..4b278925aa
--- /dev/null
+++ b/configs/autobuild/br-arm-basic_defconfig
@@ -0,0 +1,9 @@
+BR2_HOSTARCH="x86_64"
+BR2_arm=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-arm-basic-2017.02-rc1-70-g7612a7d.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_9=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
diff --git a/configs/autobuild/br-arm-cortex-a9-glibc_defconfig b/configs/autobuild/br-arm-cortex-a9-glibc_defconfig
new file mode 100644
index 0000000000..8c5d808e55
--- /dev/null
+++ b/configs/autobuild/br-arm-cortex-a9-glibc_defconfig
@@ -0,0 +1,12 @@
+BR2_HOSTARCH="x86_64"
+BR2_arm=y
+BR2_cortex_a9=y
+BR2_ARM_ENABLE_VFP=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-arm-cortex-a9-glibc-2017.02-102-g6ce3806.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_6=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_10=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-arm-cortex-a9-musl_defconfig b/configs/autobuild/br-arm-cortex-a9-musl_defconfig
new file mode 100644
index 0000000000..d5937a8407
--- /dev/null
+++ b/configs/autobuild/br-arm-cortex-a9-musl_defconfig
@@ -0,0 +1,12 @@
+BR2_HOSTARCH="x86_64"
+BR2_arm=y
+BR2_cortex_a9=y
+BR2_ARM_ENABLE_VFP=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-arm-cortex-a9-musl-2017.02-rc1-2-g133c5ac.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_9=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_MUSL=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-arm-cortex-m4-full_defconfig b/configs/autobuild/br-arm-cortex-m4-full_defconfig
new file mode 100644
index 0000000000..53f5c6686d
--- /dev/null
+++ b/configs/autobuild/br-arm-cortex-m4-full_defconfig
@@ -0,0 +1,14 @@
+BR2_HOSTARCH="x86_64"
+BR2_arm=y
+BR2_cortex_m4=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-arm-cortex-m4-full-2017.02-rc1-70-g7612a7d.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_9=y
+BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_NPTL is not set
+BR2_TOOLCHAIN_EXTERNAL_INET_RPC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-arm-full-nothread_defconfig b/configs/autobuild/br-arm-full-nothread_defconfig
new file mode 100644
index 0000000000..a0d3775c0b
--- /dev/null
+++ b/configs/autobuild/br-arm-full-nothread_defconfig
@@ -0,0 +1,13 @@
+BR2_HOSTARCH="x86_64"
+BR2_arm=y
+BR2_arm1176jzf_s=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-arm11-full-nothread-2017.02-rc1-70-g7612a7d.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_9=y
+BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS is not set
+BR2_TOOLCHAIN_EXTERNAL_INET_RPC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-arm-full-static_defconfig b/configs/autobuild/br-arm-full-static_defconfig
new file mode 100644
index 0000000000..c5af08f043
--- /dev/null
+++ b/configs/autobuild/br-arm-full-static_defconfig
@@ -0,0 +1,13 @@
+BR2_HOSTARCH="x86_64"
+BR2_arm=y
+BR2_STATIC_LIBS=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-arm-full-static-2017.02-rc1-70-g7612a7d.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_10=y
+BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
+BR2_TOOLCHAIN_EXTERNAL_INET_RPC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-arm-full_defconfig b/configs/autobuild/br-arm-full_defconfig
new file mode 100644
index 0000000000..a4a0371c16
--- /dev/null
+++ b/configs/autobuild/br-arm-full_defconfig
@@ -0,0 +1,12 @@
+BR2_HOSTARCH="x86_64"
+BR2_arm=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-arm-full-2017.02-rc1-70-g7612a7d.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_4_8=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_10=y
+BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
+BR2_TOOLCHAIN_EXTERNAL_INET_RPC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-arm-internal-full_defconfig b/configs/autobuild/br-arm-internal-full_defconfig
new file mode 100644
index 0000000000..8ff6e8689a
--- /dev/null
+++ b/configs/autobuild/br-arm-internal-full_defconfig
@@ -0,0 +1,7 @@
+BR2_arm=y
+BR2_ARM_EABI=y
+BR2_UCLIBC_VERSION_NG=y
+BR2_TOOLCHAIN_BUILDROOT_INET_RPC=y
+BR2_TOOLCHAIN_BUILDROOT_LOCALE=y
+BR2_TOOLCHAIN_BUILDROOT_WCHAR=y
+BR2_TOOLCHAIN_BUILDROOT_CXX=y
diff --git a/configs/autobuild/br-bfin-full_defconfig b/configs/autobuild/br-bfin-full_defconfig
new file mode 100644
index 0000000000..74ade4d802
--- /dev/null
+++ b/configs/autobuild/br-bfin-full_defconfig
@@ -0,0 +1,14 @@
+BR2_HOSTARCH="x86_64"
+BR2_bfin=y
+BR2_bf512=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.net/toolchains/tarballs/br-bfin-full-2017.02-rc1-2-g133c5ac.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_6=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_9=y
+BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_NPTL is not set
+BR2_TOOLCHAIN_EXTERNAL_INET_RPC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-i386-pentium-mmx-musl_defconfig b/configs/autobuild/br-i386-pentium-mmx-musl_defconfig
new file mode 100644
index 0000000000..94b0b45768
--- /dev/null
+++ b/configs/autobuild/br-i386-pentium-mmx-musl_defconfig
@@ -0,0 +1,11 @@
+BR2_HOSTARCH="x86_64"
+BR2_x86_pentium_mmx=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.net/toolchains/tarballs/br-i386-pentium-mmx-musl-2017.02-rc1-33-g1ed5524.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_18=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_MUSL=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_SSP is not set
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-i386-pentium4-full_defconfig b/configs/autobuild/br-i386-pentium4-full_defconfig
new file mode 100644
index 0000000000..d725c967d8
--- /dev/null
+++ b/configs/autobuild/br-i386-pentium4-full_defconfig
@@ -0,0 +1,12 @@
+BR2_HOSTARCH="x86_64"
+BR2_x86_pentium4=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-i386-pentium4-full-2017.02-rc1-2-g133c5ac.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_2=y
+BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
+BR2_TOOLCHAIN_EXTERNAL_INET_RPC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-m68k-5208-full_defconfig b/configs/autobuild/br-m68k-5208-full_defconfig
new file mode 100644
index 0000000000..f11a3fa8ba
--- /dev/null
+++ b/configs/autobuild/br-m68k-5208-full_defconfig
@@ -0,0 +1,13 @@
+BR2_HOSTARCH="x86_64"
+BR2_m68k=y
+BR2_m68k_cf5208=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.net/toolchains/tarballs/br-m68k-5208-full-2017.02-rc1-2-g133c5ac.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_9=y
+BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_NPTL is not set
+BR2_TOOLCHAIN_EXTERNAL_INET_RPC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-m68k-68040-full_defconfig b/configs/autobuild/br-m68k-68040-full_defconfig
new file mode 100644
index 0000000000..c9037140ae
--- /dev/null
+++ b/configs/autobuild/br-m68k-68040-full_defconfig
@@ -0,0 +1,12 @@
+BR2_HOSTARCH="x86_64"
+BR2_m68k=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.net/toolchains/tarballs/br-m68k-68040-full-2017.02-rc1-2-g133c5ac.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_9=y
+BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_NPTL is not set
+BR2_TOOLCHAIN_EXTERNAL_INET_RPC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-microblazeel-full-internal_defconfig b/configs/autobuild/br-microblazeel-full-internal_defconfig
new file mode 100644
index 0000000000..0d2d7df8f1
--- /dev/null
+++ b/configs/autobuild/br-microblazeel-full-internal_defconfig
@@ -0,0 +1 @@
+BR2_microblazeel=y
diff --git a/configs/autobuild/br-microblazeel-full_defconfig b/configs/autobuild/br-microblazeel-full_defconfig
new file mode 100644
index 0000000000..8896def98c
--- /dev/null
+++ b/configs/autobuild/br-microblazeel-full_defconfig
@@ -0,0 +1,12 @@
+BR2_HOSTARCH="x86_64"
+BR2_microblazeel=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-microblaze-full-2017.02-rc2-36-g7f5556c.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_18=y
+BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_NPTL is not set
+BR2_TOOLCHAIN_EXTERNAL_INET_RPC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-mips32r6-el-hf-glibc_defconfig b/configs/autobuild/br-mips32r6-el-hf-glibc_defconfig
new file mode 100644
index 0000000000..7df1b96218
--- /dev/null
+++ b/configs/autobuild/br-mips32r6-el-hf-glibc_defconfig
@@ -0,0 +1,12 @@
+BR2_HOSTARCH="x86_64"
+BR2_mipsel=y
+BR2_mips_32r6=y
+# BR2_MIPS_SOFT_FLOAT is not set
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-mips32r6-el-hf-2017.02-102-g6ce3806.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_10=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-mips64-n64-full_defconfig b/configs/autobuild/br-mips64-n64-full_defconfig
new file mode 100644
index 0000000000..1904606ab6
--- /dev/null
+++ b/configs/autobuild/br-mips64-n64-full_defconfig
@@ -0,0 +1,12 @@
+BR2_HOSTARCH="x86_64"
+BR2_mips64el=y
+BR2_MIPS_NABI64=y
+# BR2_MIPS_SOFT_FLOAT is not set
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-mips64-n64-full-2017.02-rc1-2-g133c5ac.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_4_8=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_9=y
+BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
+BR2_TOOLCHAIN_EXTERNAL_INET_RPC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-mips64r6-el-hf-glibc_defconfig b/configs/autobuild/br-mips64r6-el-hf-glibc_defconfig
new file mode 100644
index 0000000000..28202a01f3
--- /dev/null
+++ b/configs/autobuild/br-mips64r6-el-hf-glibc_defconfig
@@ -0,0 +1,13 @@
+BR2_HOSTARCH="x86_64"
+BR2_mips64el=y
+BR2_mips_64r6=y
+BR2_MIPS_NABI64=y
+# BR2_MIPS_SOFT_FLOAT is not set
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-mips64r6-n64-el-hf-2017.02-102-g6ce3806.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_10=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-mipsel-o32-full_defconfig b/configs/autobuild/br-mipsel-o32-full_defconfig
new file mode 100644
index 0000000000..67969b4e6b
--- /dev/null
+++ b/configs/autobuild/br-mipsel-o32-full_defconfig
@@ -0,0 +1,12 @@
+BR2_HOSTARCH="x86_64"
+BR2_mipsel=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-mipsel-o32-full-2017.02-rc1-2-g133c5ac.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_9=y
+BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
+BR2_TOOLCHAIN_EXTERNAL_INET_RPC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-nios2-glibc_defconfig b/configs/autobuild/br-nios2-glibc_defconfig
new file mode 100644
index 0000000000..e77feeae82
--- /dev/null
+++ b/configs/autobuild/br-nios2-glibc_defconfig
@@ -0,0 +1,10 @@
+BR2_HOSTARCH="x86_64"
+BR2_nios2=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-nios2-full-2017.02-102-g6ce3806.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_10=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-openrisc-uclibc_defconfig b/configs/autobuild/br-openrisc-uclibc_defconfig
new file mode 100644
index 0000000000..4e523d6838
--- /dev/null
+++ b/configs/autobuild/br-openrisc-uclibc_defconfig
@@ -0,0 +1,12 @@
+BR2_HOSTARCH="x86_64"
+BR2_or1k=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.net/toolchains/tarballs/br-openrisc-full-2017.02-rc2-2-g241609d.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_9=y
+BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_NPTL is not set
+BR2_TOOLCHAIN_EXTERNAL_INET_RPC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-powerpc-603e-basic-cpp_defconfig b/configs/autobuild/br-powerpc-603e-basic-cpp_defconfig
new file mode 100644
index 0000000000..58ecae210e
--- /dev/null
+++ b/configs/autobuild/br-powerpc-603e-basic-cpp_defconfig
@@ -0,0 +1,11 @@
+BR2_HOSTARCH="x86_64"
+BR2_powerpc=y
+BR2_powerpc_603e=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-powerpc-603e-basic-cpp-2017.02-rc1-2-g133c5ac.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_9=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-powerpc-e500mc-full_defconfig b/configs/autobuild/br-powerpc-e500mc-full_defconfig
new file mode 100644
index 0000000000..a7d8dfa851
--- /dev/null
+++ b/configs/autobuild/br-powerpc-e500mc-full_defconfig
@@ -0,0 +1,13 @@
+BR2_HOSTARCH="x86_64"
+BR2_powerpc=y
+BR2_powerpc_e500mc=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-powerpc-e500mc-full-2017.02-rc1-2-g133c5ac.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_9=y
+BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
+BR2_TOOLCHAIN_EXTERNAL_INET_RPC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-powerpc-internal-full_defconfig b/configs/autobuild/br-powerpc-internal-full_defconfig
new file mode 100644
index 0000000000..2621e9fb41
--- /dev/null
+++ b/configs/autobuild/br-powerpc-internal-full_defconfig
@@ -0,0 +1,5 @@
+BR2_powerpc=y
+BR2_TOOLCHAIN_BUILDROOT_INET_IPV6=y
+BR2_TOOLCHAIN_BUILDROOT_LOCALE=y
+BR2_TOOLCHAIN_BUILDROOT_WCHAR=y
+BR2_TOOLCHAIN_BUILDROOT_CXX=y
diff --git a/configs/autobuild/br-powerpc64-power7-glibc_defconfig b/configs/autobuild/br-powerpc64-power7-glibc_defconfig
new file mode 100644
index 0000000000..9a71df1043
--- /dev/null
+++ b/configs/autobuild/br-powerpc64-power7-glibc_defconfig
@@ -0,0 +1,10 @@
+BR2_HOSTARCH="x86_64"
+BR2_powerpc64=y
+BR2_powerpc_power7=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.net/toolchains/tarballs/br-powerpc64-power7-glibc-2017.02-102-g6ce3806.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_10=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-powerpc64le-power8-glibc_defconfig b/configs/autobuild/br-powerpc64le-power8-glibc_defconfig
new file mode 100644
index 0000000000..137a3460a6
--- /dev/null
+++ b/configs/autobuild/br-powerpc64le-power8-glibc_defconfig
@@ -0,0 +1,10 @@
+BR2_HOSTARCH="x86_64"
+BR2_powerpc64le=y
+BR2_powerpc_power8=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.net/toolchains/tarballs/br-powerpc64le-power8-glibc-2017.02-102-g6ce3806.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_10=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-sh4-full_defconfig b/configs/autobuild/br-sh4-full_defconfig
new file mode 100644
index 0000000000..44d33b744f
--- /dev/null
+++ b/configs/autobuild/br-sh4-full_defconfig
@@ -0,0 +1,12 @@
+BR2_HOSTARCH="x86_64"
+BR2_sh=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-sh4-full-2017.02-rc1-2-g133c5ac.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_9=y
+BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
+BR2_TOOLCHAIN_EXTERNAL_INET_RPC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-sparc-uclibc_defconfig b/configs/autobuild/br-sparc-uclibc_defconfig
new file mode 100644
index 0000000000..0757679063
--- /dev/null
+++ b/configs/autobuild/br-sparc-uclibc_defconfig
@@ -0,0 +1,11 @@
+BR2_HOSTARCH="x86_64"
+BR2_sparc=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-sparc-uclibc-2017.02-rc1-2-g133c5ac.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_1=y
+BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
+BR2_TOOLCHAIN_EXTERNAL_INET_RPC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-sparc64-glibc_defconfig b/configs/autobuild/br-sparc64-glibc_defconfig
new file mode 100644
index 0000000000..5cf34becb7
--- /dev/null
+++ b/configs/autobuild/br-sparc64-glibc_defconfig
@@ -0,0 +1,9 @@
+BR2_HOSTARCH="x86_64"
+BR2_sparc64=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-sparc64-full-2017.02-102-g6ce3806.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_1=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-x86-64-core2-full_defconfig b/configs/autobuild/br-x86-64-core2-full_defconfig
new file mode 100644
index 0000000000..c30a0f90a4
--- /dev/null
+++ b/configs/autobuild/br-x86-64-core2-full_defconfig
@@ -0,0 +1,13 @@
+BR2_HOSTARCH="x86_64"
+BR2_x86_64=y
+BR2_x86_core2=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-x86-64-core2-full-2017.02-rc1-2-g133c5ac.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_4=y
+BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
+BR2_TOOLCHAIN_EXTERNAL_INET_RPC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-x86-64-musl_defconfig b/configs/autobuild/br-x86-64-musl_defconfig
new file mode 100644
index 0000000000..e71f54d1e1
--- /dev/null
+++ b/configs/autobuild/br-x86-64-musl_defconfig
@@ -0,0 +1,11 @@
+BR2_HOSTARCH="x86_64"
+BR2_x86_64=y
+BR2_x86_atom=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-x86-64-musl-2017.02-rc1-2-g133c5ac.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_9=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_MUSL=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/br-xtensa-full-internal_defconfig b/configs/autobuild/br-xtensa-full-internal_defconfig
new file mode 100644
index 0000000000..23e631222f
--- /dev/null
+++ b/configs/autobuild/br-xtensa-full-internal_defconfig
@@ -0,0 +1,5 @@
+BR2_xtensa=y
+BR2_JLEVEL=8
+BR2_TOOLCHAIN_BUILDROOT_INET_RPC=y
+BR2_TOOLCHAIN_BUILDROOT_LOCALE=y
+BR2_TOOLCHAIN_BUILDROOT_CXX=y
diff --git a/configs/autobuild/br-xtensa-full_defconfig b/configs/autobuild/br-xtensa-full_defconfig
new file mode 100644
index 0000000000..c95d4e9864
--- /dev/null
+++ b/configs/autobuild/br-xtensa-full_defconfig
@@ -0,0 +1,11 @@
+BR2_HOSTARCH="x86_64"
+BR2_xtensa=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-xtensa-full-2017.02-rc1-2-g133c5ac.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_5=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_9=y
+BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
+BR2_TOOLCHAIN_EXTERNAL_INET_RPC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/i686-ctng-linux-gnu_defconfig b/configs/autobuild/i686-ctng-linux-gnu_defconfig
new file mode 100644
index 0000000000..17fafb2c76
--- /dev/null
+++ b/configs/autobuild/i686-ctng-linux-gnu_defconfig
@@ -0,0 +1,11 @@
+BR2_HOSTARCH="x86"
+BR2_x86_i686=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/i686-ctng-linux-gnu.tar.xz"
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="i686-ctng-linux-gnu"
+BR2_TOOLCHAIN_EXTERNAL_GCC_4_8=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_9=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/linaro-aarch64_defconfig b/configs/autobuild/linaro-aarch64_defconfig
new file mode 100644
index 0000000000..825836a564
--- /dev/null
+++ b/configs/autobuild/linaro-aarch64_defconfig
@@ -0,0 +1,3 @@
+BR2_HOSTARCH="x86"
+BR2_aarch64=y
+BR2_TOOLCHAIN_EXTERNAL=y
diff --git a/configs/autobuild/linaro-arm_defconfig b/configs/autobuild/linaro-arm_defconfig
new file mode 100644
index 0000000000..7d5a20ba3a
--- /dev/null
+++ b/configs/autobuild/linaro-arm_defconfig
@@ -0,0 +1,5 @@
+BR2_HOSTARCH="x86"
+BR2_arm=y
+BR2_cortex_a8=y
+BR2_ARM_EABIHF=y
+BR2_TOOLCHAIN_EXTERNAL=y
diff --git a/configs/autobuild/mips64el-ctng_n32-linux-gnu_defconfig b/configs/autobuild/mips64el-ctng_n32-linux-gnu_defconfig
new file mode 100644
index 0000000000..d58bf34581
--- /dev/null
+++ b/configs/autobuild/mips64el-ctng_n32-linux-gnu_defconfig
@@ -0,0 +1,10 @@
+BR2_HOSTARCH="x86"
+BR2_mips64el=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/mips64el-ctng_n32-linux-gnu.tar.xz"
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="mips64el-ctng_n32-linux-gnu"
+BR2_TOOLCHAIN_EXTERNAL_GCC_4_8=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_9=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/mips64el-ctng_n64-linux-gnu_defconfig b/configs/autobuild/mips64el-ctng_n64-linux-gnu_defconfig
new file mode 100644
index 0000000000..19c3e3e859
--- /dev/null
+++ b/configs/autobuild/mips64el-ctng_n64-linux-gnu_defconfig
@@ -0,0 +1,12 @@
+BR2_HOSTARCH="x86"
+BR2_mips64el=y
+BR2_MIPS_NABI64=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/mips64el-ctng_n64-linux-gnu.tar.xz"
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="mips64el-ctng_n64-linux-gnu"
+BR2_TOOLCHAIN_EXTERNAL_GCC_4_8=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_9=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/powerpc-ctng_e500v2-linux-gnuspe_defconfig b/configs/autobuild/powerpc-ctng_e500v2-linux-gnuspe_defconfig
new file mode 100644
index 0000000000..db8f44569d
--- /dev/null
+++ b/configs/autobuild/powerpc-ctng_e500v2-linux-gnuspe_defconfig
@@ -0,0 +1,12 @@
+BR2_HOSTARCH="x86"
+BR2_powerpc=y
+BR2_powerpc_8548=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/powerpc-ctng_e500v2-linux-gnuspe.tar.xz"
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="powerpc-ctng_e500v2-linux-gnuspe"
+BR2_TOOLCHAIN_EXTERNAL_GCC_4_7=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_12=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/configs/autobuild/sourcery-arm-armv4t_defconfig b/configs/autobuild/sourcery-arm-armv4t_defconfig
new file mode 100644
index 0000000000..6d55ec50fb
--- /dev/null
+++ b/configs/autobuild/sourcery-arm-armv4t_defconfig
@@ -0,0 +1,5 @@
+BR2_HOSTARCH="x86"
+BR2_arm=y
+BR2_arm920t=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM=y
diff --git a/configs/autobuild/sourcery-arm-thumb2_defconfig b/configs/autobuild/sourcery-arm-thumb2_defconfig
new file mode 100644
index 0000000000..45358800c5
--- /dev/null
+++ b/configs/autobuild/sourcery-arm-thumb2_defconfig
@@ -0,0 +1,7 @@
+BR2_HOSTARCH="x86"
+BR2_arm=y
+BR2_cortex_a8=y
+BR2_ARM_EABI=y
+BR2_ARM_INSTRUCTIONS_THUMB2=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TARGET_OPTIMIZATION=""
diff --git a/configs/autobuild/sourcery-arm_defconfig b/configs/autobuild/sourcery-arm_defconfig
new file mode 100644
index 0000000000..d700ce096f
--- /dev/null
+++ b/configs/autobuild/sourcery-arm_defconfig
@@ -0,0 +1,4 @@
+BR2_HOSTARCH="x86"
+BR2_arm=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM=y
diff --git a/configs/autobuild/sourcery-mips64_defconfig b/configs/autobuild/sourcery-mips64_defconfig
new file mode 100644
index 0000000000..92c58500d4
--- /dev/null
+++ b/configs/autobuild/sourcery-mips64_defconfig
@@ -0,0 +1,6 @@
+BR2_HOSTARCH="x86"
+BR2_mips64el=y
+BR2_mips_64r2=y
+BR2_MIPS_NABI64=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS=y
diff --git a/configs/autobuild/sourcery-mips_defconfig b/configs/autobuild/sourcery-mips_defconfig
new file mode 100644
index 0000000000..d8fa742285
--- /dev/null
+++ b/configs/autobuild/sourcery-mips_defconfig
@@ -0,0 +1,5 @@
+BR2_HOSTARCH="x86"
+BR2_mips=y
+BR2_mips_32r2=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS=y
diff --git a/configs/autobuild/sourcery-nios2_defconfig b/configs/autobuild/sourcery-nios2_defconfig
new file mode 100644
index 0000000000..eb1731d3a8
--- /dev/null
+++ b/configs/autobuild/sourcery-nios2_defconfig
@@ -0,0 +1,3 @@
+BR2_HOSTARCH="x86"
+BR2_nios2=y
+BR2_TOOLCHAIN_EXTERNAL=y
diff --git a/configs/autobuild/sourcery-sh_defconfig b/configs/autobuild/sourcery-sh_defconfig
new file mode 100644
index 0000000000..d5a49b3e89
--- /dev/null
+++ b/configs/autobuild/sourcery-sh_defconfig
@@ -0,0 +1,5 @@
+BR2_HOSTARCH="x86"
+BR2_sh=y
+BR2_sh4a=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH=y
diff --git a/configs/autobuild/sourcery-x86-64_defconfig b/configs/autobuild/sourcery-x86-64_defconfig
new file mode 100644
index 0000000000..3cd67ac77f
--- /dev/null
+++ b/configs/autobuild/sourcery-x86-64_defconfig
@@ -0,0 +1,5 @@
+BR2_HOSTARCH="x86"
+BR2_x86_64=y
+BR2_x86_steamroller=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64=y
diff --git a/configs/autobuild/sourcery-x86_defconfig b/configs/autobuild/sourcery-x86_defconfig
new file mode 100644
index 0000000000..f60c4b1932
--- /dev/null
+++ b/configs/autobuild/sourcery-x86_defconfig
@@ -0,0 +1,4 @@
+BR2_HOSTARCH="x86"
+BR2_x86_pentium4=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86=y
diff --git a/configs/autobuild/x86_64-ctng_locales-linux-gnu_defconfig b/configs/autobuild/x86_64-ctng_locales-linux-gnu_defconfig
new file mode 100644
index 0000000000..8489725794
--- /dev/null
+++ b/configs/autobuild/x86_64-ctng_locales-linux-gnu_defconfig
@@ -0,0 +1,24 @@
+BR2_HOSTARCH="x86"
+BR2_x86_64=y
+BR2_x86_corei7=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/x86_64-ctng_locales-linux-gnu.tar.xz"
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="x86_64-ctng_locales-linux-gnu"
+BR2_TOOLCHAIN_EXTERNAL_GCC_4_8=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_9=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
+BR2_HOSTARCH="x86"
+BR2_x86_64=y
+BR2_x86_corei7=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/x86_64-ctng_locales-linux-gnu.tar.xz"
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="x86_64-ctng_locales-linux-gnu"
+BR2_TOOLCHAIN_EXTERNAL_GCC_4_8=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_9=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
