diff --git a/Config.in.legacy b/Config.in.legacy
index a5f7288c4f..b851af2017 100644
--- a/Config.in.legacy
+++ b/Config.in.legacy
@@ -145,6 +145,15 @@ endif
 ###############################################################################
 comment "Legacy options removed in 2017.08"
 
+config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86
+	bool "x86 Sourcery toolchain has been removed"
+	select BR2_LEGACY
+	help
+	  The Sourcery CodeBench toolchain for the x86 architecture has
+	  been removed, since it uses glibc older than 2.17 that requires
+	  -lrt to link executables using clock_* system calls. This makes
+	  this toolchain difficult to maintain over time.
+
 config BR2_GCC_VERSION_4_8_X
 	bool "gcc 4.8.x support removed"
 	select BR2_LEGACY
diff --git a/toolchain/toolchain-external/Config.in b/toolchain/toolchain-external/Config.in
index 35db582498..75229bbddf 100644
--- a/toolchain/toolchain-external/Config.in
+++ b/toolchain/toolchain-external/Config.in
@@ -36,9 +36,8 @@ source "toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Conf
 # SH4a
 source "toolchain/toolchain-external/toolchain-external-codesourcery-sh/Config.in"
 
-# x86/x86_64 (use amd64 toolchain by default for AMD64)
+# x86_64
 source "toolchain/toolchain-external/toolchain-external-codesourcery-amd64/Config.in"
-source "toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in"
 
 # Kept last, so it remains the non-default choice, unless there isn't
 # any available toolchain profile for the currently selected
@@ -130,9 +129,8 @@ source "toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Conf
 # SH4a
 source "toolchain/toolchain-external/toolchain-external-codesourcery-sh/Config.in.options"
 
-# x86/x86_64
+# x86_64
 source "toolchain/toolchain-external/toolchain-external-codesourcery-amd64/Config.in.options"
-source "toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in.options"
 
 # Custom toolchains
 source "toolchain/toolchain-external/toolchain-external-custom/Config.in.options"
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in b/toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in
deleted file mode 100644
index bcbdd26938..0000000000
--- a/toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in
+++ /dev/null
@@ -1,29 +0,0 @@
-config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86
-	bool "Sourcery CodeBench x86/x86_64 2012.09"
-	depends on BR2_i386 || BR2_x86_64
-	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
-	depends on !BR2_STATIC_LIBS
-	depends on !BR2_x86_jaguar
-	depends on !BR2_x86_steamroller
-	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	select BR2_TOOLCHAIN_HAS_SSP
-	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_HOSTARCH_NEEDS_IA32_LIBS
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_5
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_7
-	help
-	  Sourcery CodeBench toolchain for the x86/x86_64
-	  architectures, from Mentor Graphics. It uses gcc 4.7.2,
-	  binutils 2.23.51, glibc 2.16, gdb 7.4.50 and kernel headers
-	  3.5.4. It has support for the following variants:
-	    - Intel Pentium 4, glibc, 32 bits
-	      Default for x86, nothing special to do.
-	    - Intel Atom, glibc, 32 bits
-	      Select an Atom core
-	    - Intel Xeon, glibc, 64 bits
-	      Default for x86_64, nothing special to do.
-	    - Intel Core 2, glibc, 64 bits
-	      Select a Core 2 core
-	  Other architecture variants (beyond Pentium-4/Xeon) are
-	  supported as well, but glibc is not optimised for it.
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in.options b/toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in.options
deleted file mode 100644
index 65b62f3236..0000000000
--- a/toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in.options
+++ /dev/null
@@ -1,9 +0,0 @@
-if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86
-
-config BR2_TOOLCHAIN_EXTERNAL_PREFIX
-	default "i686-pc-linux-gnu"
-
-config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
-	default "toolchain-external-codesourcery-x86"
-
-endif
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-x86/toolchain-external-codesourcery-x86.hash b/toolchain/toolchain-external/toolchain-external-codesourcery-x86/toolchain-external-codesourcery-x86.hash
deleted file mode 100644
index a003f7ab3c..0000000000
--- a/toolchain/toolchain-external/toolchain-external-codesourcery-x86/toolchain-external-codesourcery-x86.hash
+++ /dev/null
@@ -1,3 +0,0 @@
-# Locally calculated
-sha256 ea804cf02014369da52abc4f64e91e96bde2dd2230aca96109459013d4545458  ia32-2012.09-62-i686-pc-linux-gnu-i386-linux.tar.bz2
-sha256 1a9519e415a1e6892c760bf21f7e98f3a633a9d1c5bb8781a96d338e4dd62717  ia32-2012.09-62-i686-pc-linux-gnu.src.tar.bz2
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-x86/toolchain-external-codesourcery-x86.mk b/toolchain/toolchain-external/toolchain-external-codesourcery-x86/toolchain-external-codesourcery-x86.mk
deleted file mode 100644
index 5ee6991c0c..0000000000
--- a/toolchain/toolchain-external/toolchain-external-codesourcery-x86/toolchain-external-codesourcery-x86.mk
+++ /dev/null
@@ -1,12 +0,0 @@
-################################################################################
-#
-# toolchain-external-codesourcery-x86
-#
-################################################################################
-
-TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_SITE = https://sourcery.mentor.com/public/gnu_toolchain/$(TOOLCHAIN_EXTERNAL_PREFIX)
-TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_VERSION = 2012.09-62
-TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_SOURCE = ia32-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_VERSION)-$(TOOLCHAIN_EXTERNAL_PREFIX)-i386-linux.tar.bz2
-TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_ACTUAL_SOURCE_TARBALL = ia32-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_VERSION)-$(TOOLCHAIN_EXTERNAL_PREFIX).src.tar.bz2
-
-$(eval $(toolchain-external-package))