4 files changed, 73 insertions, 0 deletions
diff --git a/system/include/compat/ctype.h b/system/include/compat/ctype.h
index 891006d9..3f504946 100644
--- a/system/include/compat/ctype.h
+++ b/system/include/compat/ctype.h
@@ -14,4 +14,21 @@
 
 #include_next <ctype.h>
 
+/* We undef these until libcxx is fixed. Without this,
+   some things can fail to compile correctly, like
+   Boost. Issue #1716. */
+
+#undef isalpha
+#undef isblank
+#undef iscntrl
+#undef isdigit
+#undef isgraph
+#undef islower
+#undef isprint
+#undef ispunct
+#undef isspace
+#undef isupper
+#undef isxdigit
+#undef isctype
+
 #endif /* _COMPAT_CTYPE_H_ */
diff --git a/system/include/compat/wchar.h b/system/include/compat/wchar.h
new file mode 100644
index 00000000..42f0bcee
--- /dev/null
+++ b/system/include/compat/wchar.h
@@ -0,0 +1,23 @@
+#ifndef  _COMPAT_WCHAR_H_
+#define  _COMPAT_WCHAR_H_
+
+#include_next <wchar.h>
+
+/* We undef these until libcxx is fixed. Without this,
+   some things can fail to compile correctly, like
+   Boost. Issue #1716. */
+
+#undef iswalpha
+#undef iswblank
+#undef iswcntrl
+#undef iswdigit
+#undef iswgraph
+#undef iswlower
+#undef iswprint
+#undef iswpunct
+#undef iswspace
+#undef iswupper
+#undef iswxdigit
+#undef iswctype
+
+#endif /* _COMPAT_WCHAR_H_ */
diff --git a/system/include/compat/wctype.h b/system/include/compat/wctype.h
new file mode 100644
index 00000000..0eeaab8b
--- /dev/null
+++ b/system/include/compat/wctype.h
@@ -0,0 +1,23 @@
+#ifndef  _COMPAT_WCTYPE_H_
+#define  _COMPAT_WCTYPE_H_
+
+#include_next <wctype.h>
+
+/* We undef these until libcxx is fixed. Without this,
+   some things can fail to compile correctly, like
+   Boost. Issue #1716. */
+
+#undef iswalpha
+#undef iswblank
+#undef iswcntrl
+#undef iswdigit
+#undef iswgraph
+#undef iswlower
+#undef iswprint
+#undef iswpunct
+#undef iswspace
+#undef iswupper
+#undef iswxdigit
+#undef iswctype
+
+#endif /* _COMPAT_WCTYPE_H_ */
diff --git a/system/include/emscripten/vector.h b/system/include/emscripten/vector.h
index ea148f0d..938f2369 100644
--- a/system/include/emscripten/vector.h
+++ b/system/include/emscripten/vector.h
@@ -4,3 +4,13 @@
 typedef float float32x4 __attribute__((__vector_size__(16)));
 typedef unsigned int uint32x4 __attribute__((__vector_size__(16)));
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+unsigned int emscripten_float32x4_signmask(float32x4 x);
+
+#ifdef __cplusplus
+}
+#endif
+