diff --git a/.travis.yml b/.travis.yml
index 2668f56d..0bb59050 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,4 @@
-# Copyright 2016, 2017 Peter Dimov
+# Copyright 2016, 2017, 2018 Peter Dimov
 # Distributed under the Boost Software License, Version 1.0.
 # (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
 
@@ -25,6 +25,26 @@ matrix:
     - os: linux
       env: TOOLSET=gcc COMPILER=g++ CXXSTD=03,11
 
+    - os: linux
+      compiler: g++-4.4
+      env: TOOLSET=gcc COMPILER=g++-4.4 CXXSTD=98,0x
+      addons:
+        apt:
+          packages:
+            - g++-4.4
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-4.6
+      env: TOOLSET=gcc COMPILER=g++-4.6 CXXSTD=03,0x
+      addons:
+        apt:
+          packages:
+            - g++-4.6
+          sources:
+            - ubuntu-toolchain-r-test
+
     - os: linux
       env: TOOLSET=gcc COMPILER=g++-4.7 CXXSTD=03,11
       addons:
@@ -163,6 +183,14 @@ matrix:
             - ubuntu-toolchain-r-test
             - llvm-toolchain-trusty-5.0
 
+    - os: linux
+      compiler: clang++-libc++
+      env: TOOLSET=clang COMPILER=clang++-libc++ CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - libc++-dev
+
     - os: osx
       env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11,14,1z
       osx_image: xcode9.1
diff --git a/include/boost/config/stdlib/libcpp.hpp b/include/boost/config/stdlib/libcpp.hpp
index 3d3f4ae4..1e77dca3 100644
--- a/include/boost/config/stdlib/libcpp.hpp
+++ b/include/boost/config/stdlib/libcpp.hpp
@@ -113,6 +113,13 @@
 #  define BOOST_NO_CXX11_THREAD_LOCAL
 #endif
 
+#if defined(__linux__) && !defined(BOOST_NO_CXX11_THREAD_LOCAL)
+// After libc++-dev is installed on Trusty, clang++-libc++ almost works,
+// except uses of `thread_local` fail with undefined reference to
+// `__cxa_thread_atexit`.
+#  define BOOST_NO_CXX11_THREAD_LOCAL
+#endif
+
 #if defined(__has_include)
 #if !__has_include(<shared_mutex>)
 #  define BOOST_NO_CXX14_HDR_SHARED_MUTEX
diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index ee6ecadb..a48ac3f3 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -59,6 +59,7 @@ test-suite config
           : #input-files
           : #requirements
           <rtti>off
+          <toolset>gcc-4.4.7,<cxxstd>0x:<build>no # <memory> does not compile with -fno-rtti
           [ check-target-builds has_atomic_lib : <source>atomic ]
           [ check-target-builds has_pthread_lib : <source>pthread ]
           [ check-target-builds has_rt_lib : <source>rt ]