config: split out versiondef.h from config.h

This avoids recompiling every c file after comitting.

src/nvim/buffer.c

@@ -4033,7 +4033,7 @@ void do_modelines(int flags)
   --entered;
 }
 
-#include "nvim/version_defs.h"            /* for version number */
+#include "nvim/version.h"            /* for version number */
 
 /*
  * chk_modeline() - check a single line for a mode string

src/nvim/eval.c

@@ -351,7 +351,6 @@ typedef enum {
  * The reason to use this table anyway is for very quick access to the
  * variables with the VV_ defines.
  */
-#include "nvim/version_defs.h"
 
 /* values for vv_flags: */
 #define VV_COMPAT       1       /* compatible, also used without "v:" */

src/nvim/ex_cmds2.c

@@ -21,7 +21,7 @@
 #ifdef HAVE_LOCALE_H
 # include <locale.h>
 #endif
-#include "nvim/version_defs.h"
+#include "nvim/version.h"
 #include "nvim/ex_cmds2.h"
 #include "nvim/buffer.h"
 #include "nvim/charset.h"

src/nvim/misc1.c

@@ -19,7 +19,7 @@
 
 #include "nvim/vim.h"
 #include "nvim/ascii.h"
-#include "nvim/version_defs.h"
+#include "nvim/version.h"
 #include "nvim/misc1.h"
 #include "nvim/charset.h"
 #include "nvim/cursor.h"

src/nvim/version.h

@@ -1,6 +1,18 @@
 #ifndef NVIM_VERSION_H
 #define NVIM_VERSION_H
 
+//
+// Vim version number, name, etc. Patchlevel is defined in version.c.
+//
+#define VIM_VERSION_MAJOR                7
+#define VIM_VERSION_MINOR                4
+#define VIM_VERSION_100     (VIM_VERSION_MAJOR * 100 + VIM_VERSION_MINOR)
+
+// used for the runtime directory name
+#define VIM_VERSION_NODOT       "vim74"
+// swap file compatibility (max. length is 6 chars)
+#define VIM_VERSION_SHORT       "7.4"
+
 #ifdef INCLUDE_GENERATED_DECLARATIONS
 # include "version.h.generated.h"
 #endif

src/nvim/version_defs.h

@@ -9,6 +9,8 @@
 #define STR_(x) #x
 #define STR(x) STR_(x)
 
+#include "auto/versiondef.h"
+
 //
 // Nvim version identifiers
 //