diff --git a/gcc/config/vxworks/_yvals-wrapper.h b/gcc/config/vxworks/_yvals-wrapper.h
new file mode 100644
index 0000000000000000000000000000000000000000..e7b84c2174dd577eef0f920fd779228dce4f184f
--- /dev/null
+++ b/gcc/config/vxworks/_yvals-wrapper.h
@@ -0,0 +1,44 @@
+/* This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+/* The VxWorks 7 environment for C++ is based on a Dinkumware toolchain,
+   where quite a few configuration parameters are exposed in a yvals.h header
+   file which needs to be included before other standard headers.
+
+   This header file provides a wrapper facility to achieve this in addition
+   to the common requirement to include vxWorks.h before anything else.  */
+
+#include <_vxworks-versions.h>
+
+#if _VXWORKS_MAJOR_GE(7) && defined(__cplusplus)
+
+#include <_yvals.h>
+
+#pragma push_macro("__cplusplus")
+#undef __cplusplus
+#include_next __HEADER_TO_WRAP
+#pragma pop_macro("__cplusplus")
+
+#else
+
+#include_next __HEADER_TO_WRAP
+
+#endif
diff --git a/gcc/config/vxworks/_yvals.h b/gcc/config/vxworks/_yvals.h
new file mode 100644
index 0000000000000000000000000000000000000000..f8b0818185c50f08beaf3bff14292743377185c3
--- /dev/null
+++ b/gcc/config/vxworks/_yvals.h
@@ -0,0 +1,45 @@
+/* This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef __GCC_YVALS_H
+#define __GCC_YVALS_H
+
+#include <_vxworks-versions.h>
+
+#if _VXWORKS_MAJOR_GE(7)
+
+/* We need to deactivate the definitions tailored for the Dinkumware
+   intrinsics, incompatible with a compilation by G++.  */
+
+#include <yvals.h>
+
+#undef _HAS_CPP17
+#define _HAS_CPP17 0
+
+#undef _HAS_CPP14
+#define _HAS_CPP14 0
+
+#undef _HAS_CPP11
+#define _HAS_CPP11 0
+
+#endif /* VxWorks MAJOR >= 7 */
+
+#endif /* __GCC_YVALS_H */
diff --git a/gcc/config/vxworks/complex.h b/gcc/config/vxworks/complex.h
new file mode 100644
index 0000000000000000000000000000000000000000..394671a8b49584b9a0c0a91ecf328e91b0b7d1e1
--- /dev/null
+++ b/gcc/config/vxworks/complex.h
@@ -0,0 +1,28 @@
+/* This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef __GCC_COMPLEX_H
+#define __GCC_COMPLEX_H
+
+#define __HEADER_TO_WRAP <complex.h>
+#include <_yvals-wrapper.h>
+
+#endif
diff --git a/gcc/config/vxworks/inttypes.h b/gcc/config/vxworks/inttypes.h
new file mode 100644
index 0000000000000000000000000000000000000000..d7862a48253d8d258fbac6f86f5f20203ba5c8b9
--- /dev/null
+++ b/gcc/config/vxworks/inttypes.h
@@ -0,0 +1,28 @@
+/* This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef __GCC_INTTYPES_H
+#define __GCC_INTTYPES_H
+
+#define __HEADER_TO_WRAP <inttypes.h>
+#include <_yvals-wrapper.h>
+
+#endif
diff --git a/gcc/config/vxworks/math.h b/gcc/config/vxworks/math.h
new file mode 100644
index 0000000000000000000000000000000000000000..8cf31b477ba29005ce1c3f8c6c48f544232c2217
--- /dev/null
+++ b/gcc/config/vxworks/math.h
@@ -0,0 +1,28 @@
+/* This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef __GCC_MATH_H
+#define __GCC_MATH_H
+
+#define __HEADER_TO_WRAP <math.h>
+#include <_yvals-wrapper.h>
+
+#endif
diff --git a/gcc/config/vxworks/setjmp.h b/gcc/config/vxworks/setjmp.h
new file mode 100644
index 0000000000000000000000000000000000000000..c625e612948234d6f9e9106801a7b3c5a3f33e6a
--- /dev/null
+++ b/gcc/config/vxworks/setjmp.h
@@ -0,0 +1,34 @@
+/* This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef __GCC_SETJMP_H
+#define __GCC_SETJMP_H
+
+/* Getting proper namespaces for c++ requires that don't alter the perception
+   that we are compiling for c++, unlike what _yvals-wrapper would do.
+   setjmp.h redoes a few of a the yvals.h things in its own fashion, so the
+   pre-inclusion of yvals.h on VxWorks 7 with __cplusplus defined isn't a
+   problem in this particular case.  */
+
+#include <_yvals.h>
+#include_next  <setjmp.h>
+
+#endif