commit b02880593e281ce44661ce22e9391edfe921e47e
parent 4e4203f71b0b9bb2ca4ad9abd2fbf4ea1deaf9a6
Author: luukvbaal <31730729+luukvbaal@users.noreply.github.com>
Date: Thu, 23 Mar 2023 12:58:50 +0100
build(win): export extern symbols for use in FFI #22756
Makes `extern` variables accessible through ffi on Windows.
Follow-up to https://github.com/neovim/neovim/pull/15999
Diffstat:
2 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/src/nvim/main.c b/src/nvim/main.c
@@ -1,7 +1,12 @@
// This is an open source non-commercial project. Dear PVS-Studio, please check
// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
-#define EXTERN
+// Make sure extern symbols are exported on Windows
+#ifdef WIN32
+# define EXTERN __declspec(dllexport)
+#else
+# define EXTERN
+#endif
#include <assert.h>
#include <limits.h>
#include <msgpack/pack.h>
diff --git a/test/functional/lua/ffi_spec.lua b/test/functional/lua/ffi_spec.lua
@@ -63,5 +63,14 @@ describe('ffi.cdef', function()
nil
)
]=])
+
+ -- Check that extern symbols are exported and accessible
+ eq(true, exec_lua[[
+ local ffi = require('ffi')
+
+ ffi.cdef('uint64_t display_tick;')
+
+ return ffi.C.display_tick >= 0
+ ]])
end)
end)