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, 34 insertions, 15 deletions

diff --git a/ext/socket/rubysocket.h b/ext/socket/rubysocket.h
index 0ce77a5f6e..5dca68a198 100644
--- a/ext/socket/rubysocket.h
+++ b/ext/socket/rubysocket.h
@@ -1,12 +1,12 @@
 #ifndef RUBY_SOCKET_H
 #define RUBY_SOCKET_H 1
 
-#include "ruby/ruby.h"
-#include "ruby/io.h"
-#include "ruby/thread.h"
-#include "ruby/util.h"
-#include "internal.h"
+#include "ruby/config.h"
+#include RUBY_EXTCONF_H
+
+#include <errno.h>
 #include <stdio.h>
+
 #include <sys/types.h>
 #include <sys/stat.h>
 
@@ -56,12 +56,11 @@
 #ifdef HAVE_NETPACKET_PACKET_H
 #  include <netpacket/packet.h>
 #endif
+
 #ifdef HAVE_NET_ETHERNET_H
 #  include <net/ethernet.h>
 #endif
 
-#include <errno.h>
-
 #ifdef HAVE_SYS_UN_H
 #  include <sys/un.h>
 #endif
@@ -87,12 +86,15 @@
 #  endif
 #  include <ifaddrs.h>
 #endif
+
 #ifdef HAVE_SYS_IOCTL_H
 #  include <sys/ioctl.h>
 #endif
+
 #ifdef HAVE_SYS_SOCKIO_H
 #  include <sys/sockio.h>
 #endif
+
 #ifdef HAVE_NET_IF_H
 #  include <net/if.h>
 #endif
@@ -100,16 +102,40 @@
 #ifdef HAVE_SYS_PARAM_H
 #  include <sys/param.h>
 #endif
+
 #ifdef HAVE_SYS_UCRED_H
 #  include <sys/ucred.h>
 #endif
+
 #ifdef HAVE_UCRED_H
 #  include <ucred.h>
 #endif
+
 #ifdef HAVE_NET_IF_DL_H
 #  include <net/if_dl.h>
 #endif
 
+#ifdef SOCKS5
+#  include <socks.h>
+#endif
+
+#ifndef HAVE_GETADDRINFO
+#  include "addrinfo.h"
+#endif
+
+#include "internal.h"
+#include "internal/array.h"
+#include "internal/error.h"
+#include "internal/gc.h"
+#include "internal/io.h"
+#include "internal/thread.h"
+#include "internal/vm.h"
+#include "ruby/io.h"
+#include "ruby/ruby.h"
+#include "ruby/thread.h"
+#include "ruby/util.h"
+#include "sockport.h"
+
 #ifndef HAVE_TYPE_SOCKLEN_T
 typedef int socklen_t;
 #endif
@@ -143,11 +169,6 @@ unsigned int if_nametoindex(const char *);
  */
 #define pseudo_AF_FTIP pseudo_AF_RTIP
 
-#ifndef HAVE_GETADDRINFO
-#  include "addrinfo.h"
-#endif
-
-#include "sockport.h"
 
 #ifndef NI_MAXHOST
 #  define NI_MAXHOST 1025
@@ -255,9 +276,7 @@ extern VALUE rb_eSocket;
 
 #ifdef SOCKS
 extern VALUE rb_cSOCKSSocket;
-#  ifdef SOCKS5
-#    include <socks.h>
-#  else
+#  ifndef SOCKS5
 void SOCKSinit();
 int Rconnect();
 #  endif