From c77c54f1bc8f2a251d6be35d09fe309d653e671f Mon Sep 17 00:00:00 2001
From: "Justin M. Keyes" <justinkz@gmail.com>
Date: Sat, 13 May 2017 01:22:53 +0200
Subject: func_attr.h: use NVIM_HAS_ATTRIBUTE

---
 src/nvim/func_attr.h | 29 +++++++++--------------------
 1 file changed, 9 insertions(+), 20 deletions(-)

(limited to 'src')

diff --git a/src/nvim/func_attr.h b/src/nvim/func_attr.h
index 3b9cb3e52e..f1a1d9a563 100644
--- a/src/nvim/func_attr.h
+++ b/src/nvim/func_attr.h
@@ -41,6 +41,8 @@
 // $ gcc -E -dM - </dev/null
 // $ echo | clang -dM -E -
 
+#include "nvim/macros.h"
+
 #ifdef FUNC_ATTR_MALLOC
 # undef FUNC_ATTR_MALLOC
 #endif
@@ -96,8 +98,7 @@
 #ifndef DID_REAL_ATTR
 # define DID_REAL_ATTR
 # ifdef __GNUC__
-// place defines for all gnulikes here, for now that's gcc, clang and
-// intel.
+// For all gnulikes: gcc, clang, intel.
 
 // place these after the argument list of the function declaration
 // (not definition), like so:
@@ -113,29 +114,17 @@
 #  define REAL_FATTR_NONNULL_ARG(...) __attribute__((nonnull(__VA_ARGS__)))
 #  define REAL_FATTR_NORETURN __attribute__((noreturn))
 
-#  if defined(__clang__) && __clang__ == 1
-// clang
-#   if (__clang_major__ > 3 || (__clang_major__ == 3 && __clang_minor__ >= 7))
-#    define REAL_FATTR_NONNULL_RET __attribute__((returns_nonnull))
-#   endif
-#  elif defined(__INTEL_COMPILER)
-// intel compiler
-#  else
-#   define GCC_VERSION \
-            (__GNUC__ * 10000 + \
-             __GNUC_MINOR__ * 100 + \
-             __GNUC_PATCHLEVEL__)
-// gcc
+#  if NVIM_HAS_ATTRIBUTE(returns_nonnull)
+#   define REAL_FATTR_NONNULL_RET __attribute__((returns_nonnull))
+#  endif
+
+#  if NVIM_HAS_ATTRIBUTE(alloc_size)
 #   define REAL_FATTR_ALLOC_SIZE(x) __attribute__((alloc_size(x)))
 #   define REAL_FATTR_ALLOC_SIZE_PROD(x, y) __attribute__((alloc_size(x, y)))
-#   if GCC_VERSION >= 40900
-#    define REAL_FATTR_NONNULL_RET __attribute__((returns_nonnull))
-#   endif
 #  endif
 # endif
 
-// define function attributes that haven't been defined for this specific
-// compiler.
+// Define attributes that are not defined for this compiler.
 
 # ifndef REAL_FATTR_MALLOC
 #  define REAL_FATTR_MALLOC
-- 
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