3 files changed, 54 insertions, 0 deletions
diff --git a/libc/include/llvm-libc-macros/CMakeLists.txt b/libc/include/llvm-libc-macros/CMakeLists.txt
index 76c03d9..b16337c 100644
--- a/libc/include/llvm-libc-macros/CMakeLists.txt
+++ b/libc/include/llvm-libc-macros/CMakeLists.txt
@@ -32,6 +32,12 @@ if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${LIBC_TARGET_OS})
 endif()
 
 add_macro_header(
+  annex_k_macros
+  HDR
+    annex-k-macros.h
+)
+
+add_macro_header(
   assert_macros
   HDR
     assert-macros.h
@@ -346,6 +352,12 @@ add_macro_header(
 )
 
 add_macro_header(
+  nl_types_macros
+  HDR
+    nl-types-macros.h
+)
+
+add_macro_header(
   pthread_macros
   HDR
     pthread-macros.h
diff --git a/libc/include/llvm-libc-macros/annex-k-macros.h b/libc/include/llvm-libc-macros/annex-k-macros.h
new file mode 100644
index 0000000..7cfb5c1
--- /dev/null
+++ b/libc/include/llvm-libc-macros/annex-k-macros.h
@@ -0,0 +1,27 @@
+//===-- Definition of macros to be used with Annex K functions ------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_INCLUDE_LLVM_LIBC_MACROS_ANNEX_K_MACROS_H
+#define LLVM_LIBC_INCLUDE_LLVM_LIBC_MACROS_ANNEX_K_MACROS_H
+
+#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) ||              \
+    (defined(__cplusplus) && __cplusplus >= 201703L)
+
+// TODO(bassiounix): Who should def this macro (clang vs libc)? Where?
+// TODO(bassiounix): uncomment/move when Annex K is fully implemented.
+// #define __STDC_LIB_EXT1__ 201112L
+
+#if defined(__STDC_WANT_LIB_EXT1__) && __STDC_WANT_LIB_EXT1__ == 1
+
+#define LIBC_HAS_ANNEX_K
+
+#endif // defined(__STDC_WANT_LIB_EXT1__) && __STDC_WANT_LIB_EXT1__ == 1
+
+#endif // (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) ||
+       // (defined(__cplusplus) && __cplusplus >= 201703L)
+#endif // LLVM_LIBC_INCLUDE_LLVM_LIBC_MACROS_ANNEX_K_MACROS_H
diff --git a/libc/include/llvm-libc-macros/nl-types-macros.h b/libc/include/llvm-libc-macros/nl-types-macros.h
new file mode 100644
index 0000000..b6d0d35
--- /dev/null
+++ b/libc/include/llvm-libc-macros/nl-types-macros.h
@@ -0,0 +1,15 @@
+//===-- Definition of macros from nl_types.h ------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_MACROS_NL_TYPES_MACROS_H
+#define LLVM_LIBC_MACROS_NL_TYPES_MACROS_H
+
+#define NL_SETD 1
+#define NL_CAT_LOCALE 1
+
+#endif // LLVM_LIBC_MACROS_NL_TYPES_MACROS_H