[libc++] Detect C11 features on non-Clang compilers
Summary:
The macros were inside `#if defined(_LIBCPP_COMPILER_CLANG)`, which means
we would never detect C11 features on non-Clang compilers. According to
Marshall Clow, this is not the intended behavior.
Reviewers: mclow.lists, EricWF
Subscribers: krytarowski, christof, dexonsmith, cfe-commits
Differential Revision: https://reviews.llvm.org/D50748
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@339741 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/__config b/include/__config
index 4c3b25b..cd2a135 100644
--- a/include/__config
+++ b/include/__config
@@ -328,6 +328,28 @@
# define _LIBCPP_NO_CFI
#endif
+#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L
+# if defined(__FreeBSD__)
+# define _LIBCPP_HAS_QUICK_EXIT
+# define _LIBCPP_HAS_C11_FEATURES
+# elif defined(__Fuchsia__)
+# define _LIBCPP_HAS_QUICK_EXIT
+# define _LIBCPP_HAS_C11_FEATURES
+# elif defined(__linux__)
+# if !defined(_LIBCPP_HAS_MUSL_LIBC)
+# if _LIBCPP_GLIBC_PREREQ(2, 15) || defined(__BIONIC__)
+# define _LIBCPP_HAS_QUICK_EXIT
+# endif
+# if _LIBCPP_GLIBC_PREREQ(2, 17)
+# define _LIBCPP_HAS_C11_FEATURES
+# endif
+# else // defined(_LIBCPP_HAS_MUSL_LIBC)
+# define _LIBCPP_HAS_QUICK_EXIT
+# define _LIBCPP_HAS_C11_FEATURES
+# endif
+# endif // __linux__
+#endif
+
#if defined(_LIBCPP_COMPILER_CLANG)
// _LIBCPP_ALTERNATE_STRING_LAYOUT is an old name for
@@ -430,28 +452,6 @@
#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
#endif
-#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L
-# if defined(__FreeBSD__)
-# define _LIBCPP_HAS_QUICK_EXIT
-# define _LIBCPP_HAS_C11_FEATURES
-# elif defined(__Fuchsia__)
-# define _LIBCPP_HAS_QUICK_EXIT
-# define _LIBCPP_HAS_C11_FEATURES
-# elif defined(__linux__)
-# if !defined(_LIBCPP_HAS_MUSL_LIBC)
-# if _LIBCPP_GLIBC_PREREQ(2, 15) || defined(__BIONIC__)
-# define _LIBCPP_HAS_QUICK_EXIT
-# endif
-# if _LIBCPP_GLIBC_PREREQ(2, 17)
-# define _LIBCPP_HAS_C11_FEATURES
-# endif
-# else // defined(_LIBCPP_HAS_MUSL_LIBC)
-# define _LIBCPP_HAS_QUICK_EXIT
-# define _LIBCPP_HAS_C11_FEATURES
-# endif
-# endif // __linux__
-#endif
-
#if !(__has_feature(cxx_noexcept))
#define _LIBCPP_HAS_NO_NOEXCEPT
#endif