decouple internal.h headers

Saves comitters' daily life by avoid #include-ing everything from
internal.h to make each file do so instead.  This would significantly
speed up incremental builds.

We take the following inclusion order in this changeset:

1.  "ruby/config.h", where _GNU_SOURCE is defined (must be the very
    first thing among everything).
2.  RUBY_EXTCONF_H if any.
3.  Standard C headers, sorted alphabetically.
4.  Other system headers, maybe guarded by #ifdef
5.  Everything else, sorted alphabetically.

Exceptions are those win32-related headers, which tend not be self-
containing (headers have inclusion order dependencies).

1 files changed, 8 insertions, 3 deletions

diff --git a/mjit_compile.c b/mjit_compile.c
index f379a896a8..3218c52c4e 100644
--- a/mjit_compile.c
+++ b/mjit_compile.c
@@ -10,17 +10,22 @@
 // call Ruby methods (C functions that may call rb_funcall) or trigger
 // GC (using ZALLOC, xmalloc, xfree, etc.) in this file.
 
-#include "internal.h"
+#include "ruby/config.h"
 
 #if USE_MJIT
 
+#include "internal.h"
+#include "internal/compile.h"
+#include "internal/hash.h"
+#include "internal/variable.h"
+#include "mjit.h"
 #include "vm_core.h"
 #include "vm_exec.h"
-#include "mjit.h"
+#include "vm_insnhelper.h"
+
 #include "builtin.h"
 #include "insns.inc"
 #include "insns_info.inc"
-#include "vm_insnhelper.h"
 
 // Macros to check if a position is already compiled using compile_status.stack_size_for_pos
 #define NOT_COMPILED_STACK_SIZE -1