diff --git a/gnu/packages/gcc.scm b/gnu/packages/gcc.scm
index 9ff5e3d7c0..8969fefd84 100644
--- a/gnu/packages/gcc.scm
+++ b/gnu/packages/gcc.scm
@@ -530,6 +530,12 @@ Go.  It also includes runtime support libraries for these languages.")
               (patches (search-patches "gcc-strmov-store-file-names.patch"
                                        "gcc-7-libsanitizer-mode-size.patch"
                                        "gcc-5.0-libvtv-runpath.patch"))))
+    (inputs
+     ;; XXX: This gross hack allows us to have libstdc++'s <bits/c++config.h>
+     ;; in the search path, thereby avoiding misconfiguration of libstdc++:
+     ;; <https://bugs.gnu.org/42392>.
+     `(("libstdc++" ,libstdc++-headers)
+       ,@(package-inputs gcc-6)))
     (description
      "GCC is the GNU Compiler Collection.  It provides compiler front-ends
 for several languages, including C, C++, Objective-C, Fortran, Ada, and Go.
@@ -607,6 +613,31 @@ using compilers other than GCC."
     (propagated-inputs '())
     (synopsis "GNU C++ standard library")))
 
+(define libstdc++
+  ;; Libstdc++ matching the default GCC.
+  (make-libstdc++ gcc))
+
+(define libstdc++-headers
+  ;; XXX: This package is for internal use to work around
+  ;; <https://bugs.gnu.org/42392> (see above).  The main difference compared
+  ;; to the libstdc++ headers that come with 'gcc' is that <bits/c++config.h>
+  ;; is right under include/c++ and not under
+  ;; include/c++/x86_64-unknown-linux-gnu (aka. GPLUSPLUS_TOOL_INCLUDE_DIR).
+  (package
+    (inherit libstdc++)
+    (name "libstdc++-headers")
+    (outputs '("out"))
+    (build-system trivial-build-system)
+    (arguments
+     '(#:builder (let* ((out       (assoc-ref %outputs "out"))
+                        (libstdc++ (assoc-ref %build-inputs "libstdc++")))
+                   (mkdir out)
+                   (mkdir (string-append out "/include"))
+                   (symlink (string-append libstdc++ "/include")
+                            (string-append out "/include/c++")))))
+    (inputs `(("libstdc++" ,libstdc++)))
+    (synopsis "Headers of GNU libstdc++")))
+
 (define-public libstdc++-4.9
   (make-libstdc++ gcc-4.9))