diff --git a/libcxx/test/std/depr/depr.c.headers/inttypes_h.pass.cpp b/libcxx/test/std/depr/depr.c.headers/inttypes_h.pass.cpp
--- a/libcxx/test/std/depr/depr.c.headers/inttypes_h.pass.cpp
+++ b/libcxx/test/std/depr/depr.c.headers/inttypes_h.pass.cpp
@@ -927,8 +927,10 @@
     static_assert((std::is_same<decltype(imaxdiv(i, i)), imaxdiv_t>::value), "");
     static_assert((std::is_same<decltype(strtoimax("", (char**)0, 0)), intmax_t>::value), "");
     static_assert((std::is_same<decltype(strtoumax("", (char**)0, 0)), uintmax_t>::value), "");
+#ifndef TEST_HAS_NO_WIDE_CHARACTERS
     static_assert((std::is_same<decltype(wcstoimax(L"", (wchar_t**)0, 0)), intmax_t>::value), "");
     static_assert((std::is_same<decltype(wcstoumax(L"", (wchar_t**)0, 0)), uintmax_t>::value), "");
+#endif
 
   return 0;
 }
diff --git a/libcxx/test/std/depr/depr.c.headers/stdlib_h.pass.cpp b/libcxx/test/std/depr/depr.c.headers/stdlib_h.pass.cpp
--- a/libcxx/test/std/depr/depr.c.headers/stdlib_h.pass.cpp
+++ b/libcxx/test/std/depr/depr.c.headers/stdlib_h.pass.cpp
@@ -155,6 +155,7 @@
     static_assert((std::is_same<decltype(div(0,0)), div_t>::value), "");
     static_assert((std::is_same<decltype(ldiv(0L,0L)), ldiv_t>::value), "");
     static_assert((std::is_same<decltype(lldiv(0LL,0LL)), lldiv_t>::value), "");
+#ifndef TEST_HAS_NO_WIDE_CHARACTERS
     wchar_t* pw = 0;
     const wchar_t* pwc = 0;
     char* pc = 0;
@@ -163,6 +164,7 @@
     static_assert((std::is_same<decltype(wctomb(pc,L' ')), int>::value), "");
     static_assert((std::is_same<decltype(mbstowcs(pw,"",0)), size_t>::value), "");
     static_assert((std::is_same<decltype(wcstombs(pc,pwc,0)), size_t>::value), "");
+#endif
 
     test_abs();
 
diff --git a/libcxx/test/std/language.support/support.runtime/cstdlib.pass.cpp b/libcxx/test/std/language.support/support.runtime/cstdlib.pass.cpp
--- a/libcxx/test/std/language.support/support.runtime/cstdlib.pass.cpp
+++ b/libcxx/test/std/language.support/support.runtime/cstdlib.pass.cpp
@@ -146,6 +146,7 @@
     static_assert((std::is_same<decltype(std::div(0LL,0LL)), std::lldiv_t>::value), "");
     static_assert((std::is_same<decltype(std::ldiv(0L,0L)), std::ldiv_t>::value), "");
     static_assert((std::is_same<decltype(std::lldiv(0LL,0LL)), std::lldiv_t>::value), "");
+#ifndef TEST_HAS_NO_WIDE_CHARACTERS
     wchar_t* pw = 0;
     const wchar_t* pwc = 0;
     char* pc = 0;
@@ -154,6 +155,7 @@
     static_assert((std::is_same<decltype(std::wctomb(pc,L' ')), int>::value), "");
     static_assert((std::is_same<decltype(std::mbstowcs(pw,"",0)), std::size_t>::value), "");
     static_assert((std::is_same<decltype(std::wcstombs(pc,pwc,0)), std::size_t>::value), "");
+#endif
 
     test_abs();