diff --git a/configure b/configure
index 3e5b517c6d..1dc6b3ef19 100755
--- a/configure
+++ b/configure
@@ -876,8 +876,7 @@ sub writefiles {
 		open(FILEHANDLE, ">include/config.h.tmp");
 		print FILEHANDLE <<EOF;
 /* Auto generated by configure, do not modify! */
-#ifndef __CONFIGURATION_AUTO__
-#define __CONFIGURATION_AUTO__
+#pragma once
 
 #define BRANCH "$branch"
 #define VERSION "$version"
@@ -946,7 +945,7 @@ print FILEHANDLE "#define MAXBUF " . ($config{MAXBUF}+2) . "\n";
 				$config{SOCKETENGINE} = "socketengine_select";
 			}
 		}
-		print FILEHANDLE "\n#include \"threadengines/threadengine_pthread.h\"\n\n#endif\n";
+		print FILEHANDLE "\n#include \"threadengines/threadengine_pthread.h\"\n";
 		close(FILEHANDLE);
 		
 		my $file = 'include/config.h';
diff --git a/include/bancache.h b/include/bancache.h
index 9cff918028..450f711c4e 100644
--- a/include/bancache.h
+++ b/include/bancache.h
@@ -18,8 +18,7 @@
  */
 
 
-#ifndef BANCACHE_H
-#define BANCACHE_H
+#pragma once
 
 /** Stores a cached ban entry.
  * Each ban has one of these hashed in a hash_map to make for faster removal
@@ -84,5 +83,3 @@ class CoreExport BanCacheManager
 	}
 	~BanCacheManager();
 };
-
-#endif
diff --git a/include/base.h b/include/base.h
index 5308ed655a..117ffab762 100644
--- a/include/base.h
+++ b/include/base.h
@@ -20,8 +20,7 @@
  */
 
 
-#ifndef BASE_H
-#define BASE_H
+#pragma once
 
 #include <map>
 #include <deque>
@@ -255,5 +254,3 @@ class CoreExport ServiceProvider : public classbase
 	virtual ~ServiceProvider();
 };
 
-
-#endif
diff --git a/include/caller.h b/include/caller.h
index 563577ac28..f69ff67969 100644
--- a/include/caller.h
+++ b/include/caller.h
@@ -19,8 +19,7 @@
  */
 
 
-#ifndef CALLER_H
-#define CALLER_H
+#pragma once
 
 /* Pending some sort of C++11 support */
 #if 0
@@ -355,5 +354,3 @@ template <typename ReturnType, typename Param1, typename Param2, typename Param3
 	class CoreExport NAME : public HandlerBase8<RETURN, V1, V2, V3, V4, V5, V6, V7, V8> { public: NAME() { } virtual ~NAME() { } virtual RETURN Call(V1, V2, V3, V4, V5, V6, V7, V8); }
 
 #endif
-
-#endif
diff --git a/include/channels.h b/include/channels.h
index 43302552eb..3c60fcd6ab 100644
--- a/include/channels.h
+++ b/include/channels.h
@@ -20,8 +20,7 @@
  */
 
 
-#ifndef CHANNELS_H
-#define CHANNELS_H
+#pragma once
 
 #include "membership.h"
 #include "mode.h"
@@ -354,5 +353,3 @@ class CoreExport Channel : public Extensible, public InviteBase
 	 */
 	ModResult GetExtBanStatus(User *u, char type);
 };
-
-#endif
diff --git a/include/command_parse.h b/include/command_parse.h
index f6ff588e1a..e865018e4a 100644
--- a/include/command_parse.h
+++ b/include/command_parse.h
@@ -20,8 +20,7 @@
  */
 
 
-#ifndef COMMAND_PARSE_H
-#define COMMAND_PARSE_H
+#pragma once
 
 /** A list of dll/so files containing the command handlers for the core
  */
@@ -175,5 +174,3 @@ const int duration_multi[] =
 	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
 };
-
-#endif
diff --git a/include/commands/cmd_whowas.h b/include/commands/cmd_whowas.h
index 590c111724..7e1eeefc93 100644
--- a/include/commands/cmd_whowas.h
+++ b/include/commands/cmd_whowas.h
@@ -19,8 +19,8 @@
  */
 
 
-#ifndef CMD_WHOWAS_H
-#define CMD_WHOWAS_H
+#pragma once
+
 #include "modules.h"
 
 /* Forward ref for typedefs */
@@ -114,5 +114,3 @@ class WhoWasGroup
 	 */
 	~WhoWasGroup();
 };
-
-#endif
diff --git a/include/configparser.h b/include/configparser.h
index 9b2cd4527d..8292fdda5c 100644
--- a/include/configparser.h
+++ b/include/configparser.h
@@ -17,6 +17,8 @@
  */
 
 
+#pragma once
+
 struct fpos
 {
 	std::string filename;
@@ -76,5 +78,3 @@ struct FileWrapper
 		}
 	}
 };
-
-
diff --git a/include/configreader.h b/include/configreader.h
index b137ee544f..a2dfd2a347 100644
--- a/include/configreader.h
+++ b/include/configreader.h
@@ -21,8 +21,7 @@
  */
 
 
-#ifndef INSPIRCD_CONFIGREADER
-#define INSPIRCD_CONFIGREADER
+#pragma once
 
 #include <sstream>
 #include <string>
@@ -569,5 +568,3 @@ class CoreExport ConfigReaderThread : public Thread
 	void Finish();
 	bool IsDone() { return done; }
 };
-
-#endif
diff --git a/include/consolecolors.h b/include/consolecolors.h
index f7ca1335ed..9b7e0670af 100644
--- a/include/consolecolors.h
+++ b/include/consolecolors.h
@@ -14,8 +14,8 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef CONSOLECOLORS_H
-#define CONSOLECOLORS_H
+
+#pragma once
 
 #include <ostream>
 
@@ -96,5 +96,3 @@ inline std::ostream& con_reset(std::ostream &s)
 }
 
 #endif
-
-#endif
diff --git a/include/ctables.h b/include/ctables.h
index f9cd08cb3a..2ccca0f7bf 100644
--- a/include/ctables.h
+++ b/include/ctables.h
@@ -21,8 +21,7 @@
  */
 
 
-#ifndef CTABLES_H
-#define CTABLES_H
+#pragma once
 
 /** Used to indicate command success codes
  */
@@ -252,5 +251,3 @@ class CoreExport SplitCommand : public Command
 	translation.push_back(x5);translation.push_back(x6);translation.push_back(x7);
 #define TRANSLATE8(x1,x2,x3,x4,x5,x6,x7,x8)  translation.push_back(x1);translation.push_back(x2);translation.push_back(x3);translation.push_back(x4);\
 	translation.push_back(x5);translation.push_back(x6);translation.push_back(x7);translation.push_back(x8);
-
-#endif
diff --git a/include/cull_list.h b/include/cull_list.h
index 75b08b7a37..ac64dced28 100644
--- a/include/cull_list.h
+++ b/include/cull_list.h
@@ -20,8 +20,7 @@
  */
 
 
-#ifndef CULL_LIST_H
-#define CULL_LIST_H
+#pragma once
 
 /**
  * The CullList class is used to delete objects at the end of the main loop to
@@ -58,6 +57,3 @@ class CoreExport ActionList
 	void Run();
 
 };
-
-#endif
-
diff --git a/include/dns.h b/include/dns.h
index 3c8e55d08a..d03af89189 100644
--- a/include/dns.h
+++ b/include/dns.h
@@ -18,7 +18,6 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-
 /*
 dns.h - dns library very very loosely based on
 firedns, Copyright (C) 2002 Ian Gulliver
@@ -37,8 +36,8 @@ along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
 
-#ifndef DNS_H
-#define DNS_H
+
+#pragma once
 
 #include "socket.h"
 #include "hashcomp.h"
@@ -438,6 +437,3 @@ class CoreExport DNS : public EventHandler
 	 */
 	int PruneCache();
 };
-
-#endif
-
diff --git a/include/dynamic.h b/include/dynamic.h
index 5e66ddbb04..d42cf61bf9 100644
--- a/include/dynamic.h
+++ b/include/dynamic.h
@@ -20,8 +20,7 @@
  */
 
 
-#ifndef DLL_H
-#define DLL_H
+#pragma once
 
 /** The DLLManager class is able to load a module file by filename,
  * and locate its init_module symbol.
@@ -65,6 +64,3 @@ class CoreExport DLLManager : public classbase
 	/** Get detailed version information from the module file */
 	std::string GetVersion();
 };
-
-#endif
-
diff --git a/include/exitcodes.h b/include/exitcodes.h
index d4890c94d5..888431969e 100644
--- a/include/exitcodes.h
+++ b/include/exitcodes.h
@@ -19,8 +19,7 @@
  */
 
 
-#ifndef EXITCODE_H
-#define EXITCODE_H
+#pragma once
 
 /** Valid exit codes to be used with InspIRCd::Exit()
  */
@@ -52,6 +51,3 @@ enum ExitStatus
  * human-readable strings to be shown on shutdown.
  */
 extern const char * ExitCodes[];
-
-#endif
-
diff --git a/include/extensible.h b/include/extensible.h
index bcc4992bb4..e062f66a51 100644
--- a/include/extensible.h
+++ b/include/extensible.h
@@ -17,8 +17,7 @@
  */
 
 
-#ifndef EXTENSIBLE_H
-#define EXTENSIBLE_H
+#pragma once
 
 #include <stdint.h>
 
@@ -190,5 +189,3 @@ class CoreExport StringExtItem : public ExtensionItem
 	void unset(Extensible* container);
 	void free(void* item);
 };
-
-#endif
diff --git a/include/filelogger.h b/include/filelogger.h
index 739e4d94b1..091dc9a03a 100644
--- a/include/filelogger.h
+++ b/include/filelogger.h
@@ -18,8 +18,7 @@
  */
 
 
-#ifndef FILELOGGER_H
-#define FILELOGGER_H
+#pragma once
 
 #include "logger.h"
 
@@ -51,6 +50,3 @@ class CoreExport FileLogStream : public LogStream
 
 	virtual void OnLog(int loglevel, const std::string &type, const std::string &msg);
 };
-
-#endif
-
diff --git a/include/hashcomp.h b/include/hashcomp.h
index 2932f2a486..e4b3cfe79e 100644
--- a/include/hashcomp.h
+++ b/include/hashcomp.h
@@ -22,8 +22,7 @@
  */
 
 
-#ifndef HASHCOMP_H
-#define HASHCOMP_H
+#pragma once
 
 #include <cstring>
 #include <string>
@@ -600,5 +599,3 @@ namespace std
 		
 	}
 }
-
-#endif
diff --git a/include/inspircd.h b/include/inspircd.h
index f61d48529d..0ec2c74659 100644
--- a/include/inspircd.h
+++ b/include/inspircd.h
@@ -23,8 +23,7 @@
  */
 
 
-#ifndef INSPIRCD_H
-#define INSPIRCD_H
+#pragma once
 
 #define _FILE_OFFSET_BITS 64
 #ifndef _LARGEFILE_SOURCE
@@ -877,6 +876,3 @@ class CommandModule : public Module
 		return Version(cmd.name, VF_VENDOR|VF_CORE);
 	}
 };
-
-#endif
-
diff --git a/include/inspsocket.h b/include/inspsocket.h
index c62c5a2509..75c6dc511a 100644
--- a/include/inspsocket.h
+++ b/include/inspsocket.h
@@ -21,8 +21,7 @@
  */
 
 
-#ifndef INSPSOCKET_H
-#define INSPSOCKET_H
+#pragma once
 
 #include "timer.h"
 
@@ -234,4 +233,3 @@ class CoreExport BufferedSocket : public StreamSocket
 inline Module* StreamSocket::GetIOHook() { return IOHook; }
 inline void StreamSocket::AddIOHook(Module* m) { IOHook = m; }
 inline void StreamSocket::DelIOHook() { IOHook = NULL; }
-#endif
diff --git a/include/inspstring.h b/include/inspstring.h
index 494ce92b15..7a433427a5 100644
--- a/include/inspstring.h
+++ b/include/inspstring.h
@@ -18,13 +18,11 @@
  */
 
 
-#ifndef INSPSTRING_H
-#define INSPSTRING_H
+#pragma once
 
 // This (config) is needed as inspstring doesn't pull in the central header
 #include "config.h"
 #include <cstring>
-//#include <cstddef>
 
 #ifndef HAS_STRLCPY
 /** strlcpy() implementation for systems that don't have it (linux) */
@@ -52,6 +50,3 @@ CoreExport std::string BinToHex(const std::string& data);
 CoreExport std::string BinToBase64(const std::string& data, const char* table = NULL, char pad = 0);
 /** Base64 decode */
 CoreExport std::string Base64ToBin(const std::string& data, const char* table = NULL);
-
-#endif
-
diff --git a/include/listmode.h b/include/listmode.h
index b070b90f94..1c6f70d6f4 100644
--- a/include/listmode.h
+++ b/include/listmode.h
@@ -16,6 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+
 #pragma once
 
 /** The base class for list modes, should be inherited.
diff --git a/include/logger.h b/include/logger.h
index eee964e151..7b4c45f1c3 100644
--- a/include/logger.h
+++ b/include/logger.h
@@ -18,8 +18,7 @@
  */
 
 
-#ifndef LOGGER_H
-#define LOGGER_H
+#pragma once
 
 /** Simple wrapper providing periodic flushing to a disk-backed file.
  */
@@ -211,5 +210,3 @@ class CoreExport LogManager
 	 */
 	void Log(const std::string &type, int loglevel, const char *fmt, ...) CUSTOM_PRINTF(4, 5);
 };
-
-#endif
diff --git a/include/membership.h b/include/membership.h
index 436a9371c5..44f5884179 100644
--- a/include/membership.h
+++ b/include/membership.h
@@ -17,8 +17,7 @@
  */
 
 
-#ifndef MEMBERSHIP_H
-#define MEMBERSHIP_H
+#pragma once
 
 class CoreExport Membership : public Extensible
 {
@@ -59,5 +58,3 @@ class Invitation : public classbase
 	static void Create(Channel* c, LocalUser* u, time_t timeout);
 	static Invitation* Find(Channel* c, LocalUser* u, bool check_expired = true);
 };
-
-#endif
diff --git a/include/mode.h b/include/mode.h
index de8d4c5f86..57f1b0669c 100644
--- a/include/mode.h
+++ b/include/mode.h
@@ -20,8 +20,7 @@
  */
 
 
-#ifndef MODE_H
-#define MODE_H
+#pragma once
 
 #include "ctables.h"
 
@@ -563,5 +562,3 @@ class CoreExport ModeParser
 	 */
 	std::string BuildPrefixes(bool lettersAndModes = true);
 };
-
-#endif
diff --git a/include/modules.h b/include/modules.h
index 9ba238da5e..783edd9b17 100644
--- a/include/modules.h
+++ b/include/modules.h
@@ -23,8 +23,7 @@
  */
 
 
-#ifndef MODULES_H
-#define MODULES_H
+#pragma once
 
 #include "dynamic.h"
 #include "base.h"
@@ -1645,5 +1644,3 @@ struct AllModuleList {
 #define COMMAND_INIT(c) MODULE_INIT(CommandModule<c>)
 
 #endif
-
-#endif
diff --git a/src/modules/account.h b/include/modules/account.h
similarity index 96%
rename from src/modules/account.h
rename to include/modules/account.h
index ba671ba0b2..c00b044e45 100644
--- a/src/modules/account.h
+++ b/include/modules/account.h
@@ -17,8 +17,7 @@
  */
 
 
-#ifndef ACCOUNT_H
-#define ACCOUNT_H
+#pragma once
 
 #include <map>
 #include <string>
@@ -40,5 +39,3 @@ inline AccountExtItem* GetAccountExtItem()
 {
 	return static_cast<AccountExtItem*>(ServerInstance->Extensions.GetItem("accountname"));
 }
-
-#endif
diff --git a/src/modules/m_cap.h b/include/modules/cap.h
similarity index 98%
rename from src/modules/m_cap.h
rename to include/modules/cap.h
index 409671f482..2ed8df4944 100644
--- a/src/modules/m_cap.h
+++ b/include/modules/cap.h
@@ -18,8 +18,7 @@
  */
 
 
-#ifndef M_CAP_H
-#define M_CAP_H
+#pragma once
 
 class CapEvent : public Event
 {
@@ -89,4 +88,3 @@ class GenericCap
 	}
 };
 
-#endif
diff --git a/src/modules/hash.h b/include/modules/hash.h
similarity index 97%
rename from src/modules/hash.h
rename to include/modules/hash.h
index dd7f082b05..da04c45ba9 100644
--- a/src/modules/hash.h
+++ b/include/modules/hash.h
@@ -17,8 +17,7 @@
  */
 
 
-#ifndef HASH_H
-#define HASH_H
+#pragma once
 
 #include "modules.h"
 
@@ -57,5 +56,3 @@ class HashProvider : public DataProvider
 		return sum(hmac1);
 	}
 };
-
-#endif
diff --git a/src/modules/httpd.h b/include/modules/httpd.h
similarity index 99%
rename from src/modules/httpd.h
rename to include/modules/httpd.h
index 57c60b3b2e..d1746e862f 100644
--- a/src/modules/httpd.h
+++ b/include/modules/httpd.h
@@ -21,10 +21,9 @@
  */
 
 
-#include "base.h"
+#pragma once
 
-#ifndef HTTPD_H
-#define HTTPD_H
+#include "base.h"
 
 #include <string>
 #include <sstream>
@@ -202,5 +201,3 @@ class HTTPDocumentResponse : public Request
 	{
 	}
 };
-
-#endif
diff --git a/src/modules/m_regex.h b/include/modules/regex.h
similarity index 96%
rename from src/modules/m_regex.h
rename to include/modules/regex.h
index 0233f938a6..875f942bcb 100644
--- a/src/modules/m_regex.h
+++ b/include/modules/regex.h
@@ -18,8 +18,7 @@
  */
 
 
-#ifndef M_REGEX_H
-#define M_REGEX_H
+#pragma once
 
 #include "inspircd.h"
 
@@ -54,5 +53,3 @@ class RegexFactory : public DataProvider
 
 	virtual Regex* Create(const std::string& expr) = 0;
 };
-
-#endif
diff --git a/src/modules/sasl.h b/include/modules/sasl.h
similarity index 96%
rename from src/modules/sasl.h
rename to include/modules/sasl.h
index f673511045..321711a689 100644
--- a/src/modules/sasl.h
+++ b/include/modules/sasl.h
@@ -17,8 +17,7 @@
  */
 
 
-#ifndef SASL_H
-#define SASL_H
+#pragma once
 
 class SASLFallback : public Event
 {
@@ -30,5 +29,3 @@ class SASLFallback : public Event
 		Send();
 	}
 };
-
-#endif
diff --git a/src/modules/spanningtree.h b/include/modules/spanningtree.h
similarity index 95%
rename from src/modules/spanningtree.h
rename to include/modules/spanningtree.h
index 212f35ff33..99f4f9fc40 100644
--- a/src/modules/spanningtree.h
+++ b/include/modules/spanningtree.h
@@ -17,8 +17,7 @@
  */
 
 
-#ifndef SPANNINGTREE_H
-#define SPANNINGTREE_H
+#pragma once
 
 struct AddServerEvent : public Event
 {
@@ -39,5 +38,3 @@ struct DelServerEvent : public Event
 		Send();
 	}
 };
-
-#endif
diff --git a/src/modules/sql.h b/include/modules/sql.h
similarity index 98%
rename from src/modules/sql.h
rename to include/modules/sql.h
index 436cd1da8c..a671cc95c9 100644
--- a/src/modules/sql.h
+++ b/include/modules/sql.h
@@ -17,8 +17,7 @@
  */
 
 
-#ifndef INSPIRCD_SQLAPI_3
-#define INSPIRCD_SQLAPI_3
+#pragma once
 
 /** Defines the error types which SQLerror may be set to
  */
@@ -183,5 +182,3 @@ class SQLProvider : public DataProvider
 		userinfo["uuid"] = user->uuid;
 	}
 };
-
-#endif
diff --git a/src/modules/ssl.h b/include/modules/ssl.h
similarity index 99%
rename from src/modules/ssl.h
rename to include/modules/ssl.h
index 9deafb8305..a79dcc9eff 100644
--- a/src/modules/ssl.h
+++ b/include/modules/ssl.h
@@ -18,8 +18,7 @@
  */
 
 
-#ifndef SSL_H
-#define SSL_H
+#pragma once
 
 #include <map>
 #include <string>
@@ -171,5 +170,3 @@ struct UserCertificateRequest : public Request
 		return "";
 	}
 };
-
-#endif
diff --git a/include/numerics.h b/include/numerics.h
index 4fce4cb6de..997a71d3ae 100644
--- a/include/numerics.h
+++ b/include/numerics.h
@@ -18,8 +18,7 @@
  */
 
 
-#ifndef NUMERICS_H
-#define NUMERICS_H
+#pragma once
 
 /*
  * This file is aimed providing a string that is easier to use than using the numeric
@@ -157,5 +156,3 @@ enum Numerics
 	ERR_CANTLOADMODULE				=	974, // insp-specific
 	RPL_LOADEDMODULE				=	975 // insp-specific
 };
-
-#endif
diff --git a/include/protocol.h b/include/protocol.h
index aabb5b022c..4488fcea43 100644
--- a/include/protocol.h
+++ b/include/protocol.h
@@ -18,8 +18,7 @@
  */
 
 
-#ifndef PROTOCOL_H
-#define PROTOCOL_H
+#pragma once
 
 #include "hashcomp.h"
 
@@ -135,6 +134,3 @@ class ProtocolInterface
 	 */
 	virtual void GetServerList(ProtoServerList &sl) { }
 };
-
-#endif
-
diff --git a/include/snomasks.h b/include/snomasks.h
index 85ad26f713..c5d594eeba 100644
--- a/include/snomasks.h
+++ b/include/snomasks.h
@@ -20,8 +20,7 @@
  */
 
 
-#ifndef SNOMASKS_H
-#define SNOMASKS_H
+#pragma once
 
 class Snomask
 {
@@ -106,5 +105,3 @@ class CoreExport SnomaskManager
 	 */
 	void FlushSnotices();
 };
-
-#endif
diff --git a/include/socket.h b/include/socket.h
index 5f67051246..f6934b771a 100644
--- a/include/socket.h
+++ b/include/socket.h
@@ -22,8 +22,7 @@
  */
 
 
-#ifndef INSPIRCD_SOCKET_H
-#define INSPIRCD_SOCKET_H
+#pragma once
 
 #ifndef _WIN32
 
@@ -165,6 +164,3 @@ class CoreExport ListenSocket : public EventHandler
 	 */
 	void AcceptInternal();
 };
-
-#endif
-
diff --git a/include/socketengine.h b/include/socketengine.h
index 58af73589f..fd199c3248 100644
--- a/include/socketengine.h
+++ b/include/socketengine.h
@@ -20,8 +20,7 @@
  */
 
 
-#ifndef SOCKETENGINE_H
-#define SOCKETENGINE_H
+#pragma once
 
 #include <vector>
 #include <string>
@@ -492,6 +491,3 @@ class CoreExport SocketEngine
 };
 
 SocketEngine* CreateSocketEngine();
-
-#endif
-
diff --git a/include/testsuite.h b/include/testsuite.h
index f91e508c93..43064b0630 100644
--- a/include/testsuite.h
+++ b/include/testsuite.h
@@ -16,8 +16,7 @@
  */
 
 
-#ifndef TESTSUITE_H
-#define TESTSUITE_H
+#pragma once
 
 class TestSuite
 {
@@ -32,5 +31,3 @@ class TestSuite
 	bool DoSpaceSepStreamTests();
 	bool DoGenerateUIDTests();
 };
-
-#endif
diff --git a/include/threadengine.h b/include/threadengine.h
index e0ed9ec405..39f150566b 100644
--- a/include/threadengine.h
+++ b/include/threadengine.h
@@ -18,8 +18,7 @@
  */
 
 
-#ifndef THREADENGINE_H
-#define THREADENGINE_H
+#pragma once
 
 #include <vector>
 #include <string>
@@ -172,6 +171,3 @@ class CoreExport SocketThread : public Thread
 	 */
 	virtual void OnNotify() = 0;
 };
-
-#endif
-
diff --git a/include/threadengines/threadengine_pthread.h b/include/threadengines/threadengine_pthread.h
index 5168ed238c..253e8d2237 100644
--- a/include/threadengines/threadengine_pthread.h
+++ b/include/threadengines/threadengine_pthread.h
@@ -18,8 +18,7 @@
  */
 
 
-#ifndef THREADENGINE_PTHREAD_H
-#define THREADENGINE_PTHREAD_H
+#pragma once
 
 #include <pthread.h>
 #include "typedefs.h"
@@ -153,6 +152,3 @@ class ThreadSignalData
  public:
 	ThreadSignalSocket* sock;
 };
-
-
-#endif
diff --git a/include/threadengines/threadengine_win32.h b/include/threadengines/threadengine_win32.h
index 2fdcac5650..59848bd44e 100644
--- a/include/threadengines/threadengine_win32.h
+++ b/include/threadengines/threadengine_win32.h
@@ -18,8 +18,7 @@
  */
 
 
-#ifndef THREADENGINE_WIN32_H
-#define THREADENGINE_WIN32_H
+#pragma once
 
 #include "config.h"
 #include "base.h"
@@ -152,6 +151,3 @@ class ThreadSignalData
 		connFD = -1;
 	}
 };
-
-#endif
-
diff --git a/include/timer.h b/include/timer.h
index 9bb7128b85..0dda6876e0 100644
--- a/include/timer.h
+++ b/include/timer.h
@@ -19,8 +19,7 @@
  */
 
 
-#ifndef INSPIRCD_TIMER_H
-#define INSPIRCD_TIMER_H
+#pragma once
 
 /** Timer class for one-second resolution timers
  * Timer provides a facility which allows module
@@ -149,6 +148,3 @@ class CoreExport TimerManager
 	 */
 	static bool TimerComparison( Timer *one,  Timer*two);
 };
-
-#endif
-
diff --git a/include/typedefs.h b/include/typedefs.h
index e737906671..be7d4f7961 100644
--- a/include/typedefs.h
+++ b/include/typedefs.h
@@ -19,8 +19,7 @@
  */
 
 
-#ifndef TYPEDEFS_H
-#define TYPEDEFS_H
+#pragma once
 
 class BanCacheManager;
 class BanItem;
@@ -154,7 +153,3 @@ typedef XLineContainer::iterator ContainerIter;
 /** An interator in an XLineLookup
  */
 typedef XLineLookup::iterator LookupIter;
-
-
-#endif
-
diff --git a/include/uid.h b/include/uid.h
index 17061bdee9..3783e7ada5 100644
--- a/include/uid.h
+++ b/include/uid.h
@@ -16,6 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#pragma once
 
 /**
  * This is the maximum length of a UUID (unique user identifier).
@@ -24,4 +25,3 @@
  */
 #define UUID_LENGTH 10
 
-
diff --git a/include/usermanager.h b/include/usermanager.h
index 812d8e2f2b..560db17f2c 100644
--- a/include/usermanager.h
+++ b/include/usermanager.h
@@ -17,8 +17,7 @@
  */
 
 
-#ifndef USERMANAGER_H
-#define USERMANAGER_H
+#pragma once
 
 #include <list>
 
@@ -168,5 +167,3 @@ class CoreExport UserManager
 	 */
 	void ServerPrivmsgAll(const char* text, ...) CUSTOM_PRINTF(2, 3);
 };
-
-#endif
diff --git a/include/users.h b/include/users.h
index c5c936c131..34bcc9c73e 100644
--- a/include/users.h
+++ b/include/users.h
@@ -22,8 +22,7 @@
  */
 
 
-#ifndef USERS_H
-#define USERS_H
+#pragma once
 
 #include "socket.h"
 #include "inspsocket.h"
@@ -953,5 +952,3 @@ class CoreExport UserResolver : public Resolver
 	 */
 	void OnError(ResolverError e, const std::string &errormessage);
 };
-
-#endif
diff --git a/include/xline.h b/include/xline.h
index 4094e05df2..119e29dc12 100644
--- a/include/xline.h
+++ b/include/xline.h
@@ -20,8 +20,7 @@
  */
 
 
-#ifndef XLINE_H
-#define XLINE_H
+#pragma once
 
 /** XLine is the base class for ban lines such as G lines and K lines.
  * Modules may derive from this, and their xlines will automatically be
@@ -527,4 +526,3 @@ class CoreExport XLineManager
 	void InvokeStats(const std::string &type, int numeric, User* user, string_list &results);
 };
 
-#endif
diff --git a/src/modules/extra/m_mysql.cpp b/src/modules/extra/m_mysql.cpp
index b71c3543e2..2a7e2f8787 100644
--- a/src/modules/extra/m_mysql.cpp
+++ b/src/modules/extra/m_mysql.cpp
@@ -25,7 +25,7 @@
 
 #include "inspircd.h"
 #include <mysql.h>
-#include "sql.h"
+#include "modules/sql.h"
 
 #ifdef _WIN32
 # pragma comment(lib, "mysqlclient.lib")
diff --git a/src/modules/extra/m_pgsql.cpp b/src/modules/extra/m_pgsql.cpp
index ea94834f39..6d2e0c88ae 100644
--- a/src/modules/extra/m_pgsql.cpp
+++ b/src/modules/extra/m_pgsql.cpp
@@ -26,7 +26,7 @@
 #include <cstdlib>
 #include <sstream>
 #include <libpq-fe.h>
-#include "sql.h"
+#include "modules/sql.h"
 
 /* $ModDesc: PostgreSQL Service Provider module for all other m_sql* modules, uses v2 of the SQL API */
 /* $CompileFlags: -Iexec("pg_config --includedir") eval("my $s = `pg_config --version`;$s =~ /^.*?(\d+)\.(\d+)\.(\d+).*?$/;my $v = hex(sprintf("0x%02x%02x%02x", $1, $2, $3));print "-DPGSQL_HAS_ESCAPECONN" if(($v >= 0x080104) || ($v >= 0x07030F && $v < 0x070400) || ($v >= 0x07040D && $v < 0x080000) || ($v >= 0x080008 && $v < 0x080100));") */
diff --git a/src/modules/extra/m_regex_pcre.cpp b/src/modules/extra/m_regex_pcre.cpp
index e9d9aba8a2..b2dd535156 100644
--- a/src/modules/extra/m_regex_pcre.cpp
+++ b/src/modules/extra/m_regex_pcre.cpp
@@ -20,10 +20,10 @@
 
 #include "inspircd.h"
 #include <pcre.h>
-#include "m_regex.h"
+#include "modules/regex.h"
 
 /* $ModDesc: Regex Provider Module for PCRE */
-/* $ModDep: m_regex.h */
+/* $ModDep: modules/regex.h */
 /* $CompileFlags: exec("pcre-config --cflags") */
 /* $LinkerFlags: exec("pcre-config --libs") rpath("pcre-config --libs") -lpcre */
 
diff --git a/src/modules/extra/m_regex_posix.cpp b/src/modules/extra/m_regex_posix.cpp
index 513f54cfc6..2c1295fd85 100644
--- a/src/modules/extra/m_regex_posix.cpp
+++ b/src/modules/extra/m_regex_posix.cpp
@@ -19,12 +19,12 @@
 
 
 #include "inspircd.h"
-#include "m_regex.h"
+#include "modules/regex.h"
 #include <sys/types.h>
 #include <regex.h>
 
 /* $ModDesc: Regex Provider Module for POSIX Regular Expressions */
-/* $ModDep: m_regex.h */
+/* $ModDep: modules/regex.h */
 
 class POSIXRegexException : public ModuleException
 {
diff --git a/src/modules/extra/m_regex_stdlib.cpp b/src/modules/extra/m_regex_stdlib.cpp
index 64d479cbc1..3c15f55688 100644
--- a/src/modules/extra/m_regex_stdlib.cpp
+++ b/src/modules/extra/m_regex_stdlib.cpp
@@ -17,7 +17,7 @@
  */
 
 #include "inspircd.h"
-#include "m_regex.h"
+#include "modules/regex.h"
 #include <regex>
 
 /* $ModDesc: Regex Provider Module for std::regex Regular Expressions */
@@ -25,7 +25,7 @@
  *  Specify the Regular Expression engine to use here. Valid settings are
  *  bre, ere, awk, grep, egrep, ecmascript (default if not specified)*/
 /* $CompileFlags: -std=c++11 */
-/* $ModDep: m_regex.h */
+/* $ModDep: modules/regex.h */
 
 class StdRegexException : public ModuleException
 {
diff --git a/src/modules/extra/m_regex_tre.cpp b/src/modules/extra/m_regex_tre.cpp
index b5bd7d0121..c352d5fdf9 100644
--- a/src/modules/extra/m_regex_tre.cpp
+++ b/src/modules/extra/m_regex_tre.cpp
@@ -19,14 +19,14 @@
 
 
 #include "inspircd.h"
-#include "m_regex.h"
+#include "modules/regex.h"
 #include <sys/types.h>
 #include <tre/regex.h>
 
 /* $ModDesc: Regex Provider Module for TRE Regular Expressions */
 /* $CompileFlags: pkgconfincludes("tre","tre/regex.h","") */
 /* $LinkerFlags: pkgconflibs("tre","/libtre.so","-ltre") rpath("pkg-config --libs tre") */
-/* $ModDep: m_regex.h */
+/* $ModDep: modules/regex.h */
 
 class TRERegexException : public ModuleException
 {
diff --git a/src/modules/extra/m_sqlite3.cpp b/src/modules/extra/m_sqlite3.cpp
index 40f44557ab..5cffa36402 100644
--- a/src/modules/extra/m_sqlite3.cpp
+++ b/src/modules/extra/m_sqlite3.cpp
@@ -22,7 +22,7 @@
 
 #include "inspircd.h"
 #include <sqlite3.h>
-#include "sql.h"
+#include "modules/sql.h"
 
 #ifdef _WIN32
 # pragma comment(lib, "sqlite3.lib")
diff --git a/src/modules/extra/m_ssl_gnutls.cpp b/src/modules/extra/m_ssl_gnutls.cpp
index 31beb258f6..1caacaa0fb 100644
--- a/src/modules/extra/m_ssl_gnutls.cpp
+++ b/src/modules/extra/m_ssl_gnutls.cpp
@@ -25,8 +25,8 @@
 #include <gcrypt.h>
 #include <gnutls/gnutls.h>
 #include <gnutls/x509.h>
-#include "ssl.h"
-#include "m_cap.h"
+#include "modules/ssl.h"
+#include "modules/cap.h"
 
 #ifdef _WIN32
 # pragma comment(lib, "libgnutls.lib")
diff --git a/src/modules/extra/m_ssl_openssl.cpp b/src/modules/extra/m_ssl_openssl.cpp
index 427439eb33..5a0e56db2c 100644
--- a/src/modules/extra/m_ssl_openssl.cpp
+++ b/src/modules/extra/m_ssl_openssl.cpp
@@ -33,7 +33,7 @@
 #include "inspircd.h"
 #include <openssl/ssl.h>
 #include <openssl/err.h>
-#include "ssl.h"
+#include "modules/ssl.h"
 
 #ifdef _WIN32
 # pragma comment(lib, "libcrypto.lib")
diff --git a/src/modules/m_banexception.cpp b/src/modules/m_banexception.cpp
index cf41449359..63f0085eda 100644
--- a/src/modules/m_banexception.cpp
+++ b/src/modules/m_banexception.cpp
@@ -25,7 +25,6 @@
 #include "listmode.h"
 
 /* $ModDesc: Provides support for the +e channel mode */
-/* $ModDep: ../../include/listmode.h */
 
 /* Written by Om<om@inspircd.org>, April 2005. */
 /* Rewritten to use the listmode utility by Om, December 2005 */
diff --git a/src/modules/m_cap.cpp b/src/modules/m_cap.cpp
index 59b92eb274..ee9c96936c 100644
--- a/src/modules/m_cap.cpp
+++ b/src/modules/m_cap.cpp
@@ -19,7 +19,7 @@
 
 
 #include "inspircd.h"
-#include "m_cap.h"
+#include "modules/cap.h"
 
 /* $ModDesc: Provides the CAP negotiation mechanism seen in ratbox-derived ircds */
 
diff --git a/src/modules/m_cloaking.cpp b/src/modules/m_cloaking.cpp
index 5bec93f034..9eb9a8da90 100644
--- a/src/modules/m_cloaking.cpp
+++ b/src/modules/m_cloaking.cpp
@@ -24,7 +24,7 @@
 
 
 #include "inspircd.h"
-#include "hash.h"
+#include "modules/hash.h"
 
 /* $ModDesc: Provides masking of user hostnames */
 
diff --git a/src/modules/m_filter.cpp b/src/modules/m_filter.cpp
index 7e7ded3061..027222b3a2 100644
--- a/src/modules/m_filter.cpp
+++ b/src/modules/m_filter.cpp
@@ -22,7 +22,7 @@
 
 #include "inspircd.h"
 #include "xline.h"
-#include "m_regex.h"
+#include "modules/regex.h"
 
 /* $ModDesc: Text (spam) filtering */
 
diff --git a/src/modules/m_httpd.cpp b/src/modules/m_httpd.cpp
index 46f0d6907f..d768a94368 100644
--- a/src/modules/m_httpd.cpp
+++ b/src/modules/m_httpd.cpp
@@ -23,10 +23,10 @@
 
 
 #include "inspircd.h"
-#include "httpd.h"
+#include "modules/httpd.h"
 
 /* $ModDesc: Provides HTTP serving facilities to modules */
-/* $ModDep: httpd.h */
+/* $ModDep: modules/httpd.h */
 
 class ModuleHttpServer;
 
diff --git a/src/modules/m_httpd_acl.cpp b/src/modules/m_httpd_acl.cpp
index 70c36a1545..aaf03802c6 100644
--- a/src/modules/m_httpd_acl.cpp
+++ b/src/modules/m_httpd_acl.cpp
@@ -19,7 +19,7 @@
 
 
 #include "inspircd.h"
-#include "httpd.h"
+#include "modules/httpd.h"
 #include "protocol.h"
 
 /* $ModDesc: Provides access control lists (passwording of resources, ip restrictions etc) to m_httpd.so dependent modules */
diff --git a/src/modules/m_httpd_config.cpp b/src/modules/m_httpd_config.cpp
index 88594e2fe2..cfdaa4290c 100644
--- a/src/modules/m_httpd_config.cpp
+++ b/src/modules/m_httpd_config.cpp
@@ -19,7 +19,7 @@
 
 
 #include "inspircd.h"
-#include "httpd.h"
+#include "modules/httpd.h"
 #include "protocol.h"
 
 /* $ModDesc: Allows for the server configuration to be viewed over HTTP via m_httpd.so */
diff --git a/src/modules/m_httpd_stats.cpp b/src/modules/m_httpd_stats.cpp
index 2eb9f7cb75..7d7ebcf3d6 100644
--- a/src/modules/m_httpd_stats.cpp
+++ b/src/modules/m_httpd_stats.cpp
@@ -22,7 +22,7 @@
 
 
 #include "inspircd.h"
-#include "httpd.h"
+#include "modules/httpd.h"
 #include "xline.h"
 #include "protocol.h"
 
diff --git a/src/modules/m_inviteexception.cpp b/src/modules/m_inviteexception.cpp
index 2d83828321..69498a9429 100644
--- a/src/modules/m_inviteexception.cpp
+++ b/src/modules/m_inviteexception.cpp
@@ -25,7 +25,6 @@
 #include "listmode.h"
 
 /* $ModDesc: Provides support for the +I channel mode */
-/* $ModDep: ../../include/listmode.h */
 
 /*
  * Written by Om <om@inspircd.org>, April 2005.
diff --git a/src/modules/m_ircv3.cpp b/src/modules/m_ircv3.cpp
index cc2e6c3222..0e28d59f2e 100644
--- a/src/modules/m_ircv3.cpp
+++ b/src/modules/m_ircv3.cpp
@@ -19,8 +19,8 @@
 /* $ModDesc: Provides support for extended-join, away-notify and account-notify CAP capabilities */
 
 #include "inspircd.h"
-#include "account.h"
-#include "m_cap.h"
+#include "modules/account.h"
+#include "modules/cap.h"
 
 class ModuleIRCv3 : public Module
 {
diff --git a/src/modules/m_md5.cpp b/src/modules/m_md5.cpp
index c42507ea19..feba027f67 100644
--- a/src/modules/m_md5.cpp
+++ b/src/modules/m_md5.cpp
@@ -27,7 +27,7 @@
 #ifdef HAS_STDINT
 #include <stdint.h>
 #endif
-#include "hash.h"
+#include "modules/hash.h"
 
 /* The four core functions - F1 is optimized somewhat */
 #define F1(x, y, z) (z ^ (x & (y ^ z)))
diff --git a/src/modules/m_namesx.cpp b/src/modules/m_namesx.cpp
index 4ba8613d88..48d8cc8710 100644
--- a/src/modules/m_namesx.cpp
+++ b/src/modules/m_namesx.cpp
@@ -21,7 +21,7 @@
 
 
 #include "inspircd.h"
-#include "m_cap.h"
+#include "modules/cap.h"
 
 /* $ModDesc: Provides the NAMESX (CAP multi-prefix) capability. */
 
diff --git a/src/modules/m_password_hash.cpp b/src/modules/m_password_hash.cpp
index 98462780b0..e913f49252 100644
--- a/src/modules/m_password_hash.cpp
+++ b/src/modules/m_password_hash.cpp
@@ -21,7 +21,7 @@
 /* $ModDesc: Allows for hashed oper passwords */
 
 #include "inspircd.h"
-#include "hash.h"
+#include "modules/hash.h"
 
 /* Handle /MKPASSWD
  */
diff --git a/src/modules/m_regex_glob.cpp b/src/modules/m_regex_glob.cpp
index a3088cabd6..f53ac2b9ce 100644
--- a/src/modules/m_regex_glob.cpp
+++ b/src/modules/m_regex_glob.cpp
@@ -18,7 +18,7 @@
  */
 
 
-#include "m_regex.h"
+#include "modules/regex.h"
 #include "inspircd.h"
 
 /* $ModDesc: Regex module using plain wildcard matching. */
diff --git a/src/modules/m_regonlycreate.cpp b/src/modules/m_regonlycreate.cpp
index 9d4cd5f60d..98250d2a73 100644
--- a/src/modules/m_regonlycreate.cpp
+++ b/src/modules/m_regonlycreate.cpp
@@ -21,7 +21,7 @@
 
 
 #include "inspircd.h"
-#include "account.h"
+#include "modules/account.h"
 
 /* $ModDesc: Prevents users whose nicks are not registered from creating new channels */
 
diff --git a/src/modules/m_ripemd160.cpp b/src/modules/m_ripemd160.cpp
index e487d6e305..3e7d000491 100644
--- a/src/modules/m_ripemd160.cpp
+++ b/src/modules/m_ripemd160.cpp
@@ -64,7 +64,7 @@
 #ifdef HAS_STDINT
 #include <stdint.h>
 #endif
-#include "hash.h"
+#include "modules/hash.h"
 
 #define RMDsize 160
 
diff --git a/src/modules/m_rline.cpp b/src/modules/m_rline.cpp
index 2e94df0422..c4439cbfba 100644
--- a/src/modules/m_rline.cpp
+++ b/src/modules/m_rline.cpp
@@ -23,7 +23,7 @@
 /* $ModDesc: RLINE: Regexp user banning. */
 
 #include "inspircd.h"
-#include "m_regex.h"
+#include "modules/regex.h"
 #include "xline.h"
 
 static bool ZlineOnMatch = false;
diff --git a/src/modules/m_sasl.cpp b/src/modules/m_sasl.cpp
index ff007f7998..e949e3fd4c 100644
--- a/src/modules/m_sasl.cpp
+++ b/src/modules/m_sasl.cpp
@@ -19,10 +19,10 @@
 
 
 #include "inspircd.h"
-#include "m_cap.h"
-#include "account.h"
-#include "sasl.h"
-#include "ssl.h"
+#include "modules/cap.h"
+#include "modules/account.h"
+#include "modules/sasl.h"
+#include "modules/ssl.h"
 
 /* $ModDesc: Provides support for IRC Authentication Layer (aka: atheme SASL) via AUTHENTICATE. */
 
diff --git a/src/modules/m_services_account.cpp b/src/modules/m_services_account.cpp
index fbf099924d..bdd47b4bc8 100644
--- a/src/modules/m_services_account.cpp
+++ b/src/modules/m_services_account.cpp
@@ -25,7 +25,7 @@
 /* $ModDesc: Provides support for ircu-style services accounts, including chmode +R, etc. */
 
 #include "inspircd.h"
-#include "account.h"
+#include "modules/account.h"
 
 /** Channel mode +r - mark a channel as identified
  */
diff --git a/src/modules/m_sha256.cpp b/src/modules/m_sha256.cpp
index 360b18ddd4..2c53e7170e 100644
--- a/src/modules/m_sha256.cpp
+++ b/src/modules/m_sha256.cpp
@@ -62,7 +62,7 @@
 #ifdef HAS_STDINT
 #include <stdint.h>
 #endif
-#include "hash.h"
+#include "modules/hash.h"
 
 #ifndef HAS_STDINT
 typedef unsigned int uint32_t;
diff --git a/src/modules/m_spanningtree/cachetimer.h b/src/modules/m_spanningtree/cachetimer.h
index bad1b7419e..da99111700 100644
--- a/src/modules/m_spanningtree/cachetimer.h
+++ b/src/modules/m_spanningtree/cachetimer.h
@@ -17,8 +17,7 @@
  */
 
 
-#ifndef M_SPANNINGTREE_CACHETIMER_H
-#define M_SPANNINGTREE_CACHETIMER_H
+#pragma once
 
 #include "timer.h"
 
@@ -37,5 +36,3 @@ class CacheRefreshTimer : public Timer
 	CacheRefreshTimer(SpanningTreeUtilities* Util);
 	virtual void Tick(time_t TIME);
 };
-
-#endif
diff --git a/src/modules/m_spanningtree/commands.h b/src/modules/m_spanningtree/commands.h
index 3b5b499c11..93455c8c4c 100644
--- a/src/modules/m_spanningtree/commands.h
+++ b/src/modules/m_spanningtree/commands.h
@@ -17,8 +17,7 @@
  */
 
 
-#ifndef M_SPANNINGTREE_COMMANDS_H
-#define M_SPANNINGTREE_COMMANDS_H
+#pragma once
 
 #include "main.h"
 
@@ -151,5 +150,3 @@ class SpanningTreeCommands
 	CommandFName fname;
 	SpanningTreeCommands(ModuleSpanningTree* module);
 };
-
-#endif
diff --git a/src/modules/m_spanningtree/hmac.cpp b/src/modules/m_spanningtree/hmac.cpp
index 8dc18cbbd9..ec39fb7467 100644
--- a/src/modules/m_spanningtree/hmac.cpp
+++ b/src/modules/m_spanningtree/hmac.cpp
@@ -21,8 +21,8 @@
 #include "inspircd.h"
 #include "socket.h"
 #include "xline.h"
-#include "../hash.h"
-#include "../ssl.h"
+#include "modules/hash.h"
+#include "modules/ssl.h"
 #include "socketengine.h"
 
 #include "main.h"
diff --git a/src/modules/m_spanningtree/link.h b/src/modules/m_spanningtree/link.h
index 797f108d86..b318c9bf2d 100644
--- a/src/modules/m_spanningtree/link.h
+++ b/src/modules/m_spanningtree/link.h
@@ -18,8 +18,7 @@
  */
 
 
-#ifndef M_SPANNINGTREE_LINK_H
-#define M_SPANNINGTREE_LINK_H
+#pragma once
 
 class Link : public refcountbase
 {
@@ -51,5 +50,3 @@ class Autoconnect : public refcountbase
 	int position;
 	Autoconnect(ConfigTag* Tag) : tag(Tag) {}
 };
-
-#endif
diff --git a/src/modules/m_spanningtree/main.h b/src/modules/m_spanningtree/main.h
index 1a16d72bba..fc59a3c7d3 100644
--- a/src/modules/m_spanningtree/main.h
+++ b/src/modules/m_spanningtree/main.h
@@ -21,8 +21,7 @@
  */
 
 
-#ifndef M_SPANNINGTREE_MAIN_H
-#define M_SPANNINGTREE_MAIN_H
+#pragma once
 
 #include "inspircd.h"
 #include <stdarg.h>
@@ -178,5 +177,3 @@ class ModuleSpanningTree : public Module
 	Version GetVersion();
 	void Prioritize();
 };
-
-#endif
diff --git a/src/modules/m_spanningtree/operquit.cpp b/src/modules/m_spanningtree/operquit.cpp
index af2e04ebc8..235f747818 100644
--- a/src/modules/m_spanningtree/operquit.cpp
+++ b/src/modules/m_spanningtree/operquit.cpp
@@ -19,7 +19,6 @@
 
 #include "inspircd.h"
 #include "xline.h"
-
 #include "treesocket.h"
 #include "treeserver.h"
 #include "utils.h"
diff --git a/src/modules/m_spanningtree/protocolinterface.h b/src/modules/m_spanningtree/protocolinterface.h
index 297366893d..2757db8da8 100644
--- a/src/modules/m_spanningtree/protocolinterface.h
+++ b/src/modules/m_spanningtree/protocolinterface.h
@@ -17,8 +17,7 @@
  */
 
 
-#ifndef M_SPANNINGTREE_PROTOCOLINTERFACE_H
-#define M_SPANNINGTREE_PROTOCOLINTERFACE_H
+#pragma once
 
 class SpanningTreeUtilities;
 class ModuleSpanningTree;
@@ -43,6 +42,3 @@ class SpanningTreeProtocolInterface : public ProtocolInterface
 	virtual void SendUserNotice(User* target, const std::string &text);
 	virtual void GetServerList(ProtoServerList &sl);
 };
-
-#endif
-
diff --git a/src/modules/m_spanningtree/resolvers.h b/src/modules/m_spanningtree/resolvers.h
index 65b9e72495..a092e156b3 100644
--- a/src/modules/m_spanningtree/resolvers.h
+++ b/src/modules/m_spanningtree/resolvers.h
@@ -18,8 +18,7 @@
  */
 
 
-#ifndef M_SPANNINGTREE_RESOLVERS_H
-#define M_SPANNINGTREE_RESOLVERS_H
+#pragma once
 
 #include "socket.h"
 #include "inspircd.h"
@@ -63,5 +62,3 @@ class ServernameResolver : public Resolver
 	void OnLookupComplete(const std::string &result, unsigned int ttl, bool cached);
 	void OnError(ResolverError e, const std::string &errormessage);
 };
-
-#endif
diff --git a/src/modules/m_spanningtree/treeserver.cpp b/src/modules/m_spanningtree/treeserver.cpp
index 6213483ee9..42cd37fb9e 100644
--- a/src/modules/m_spanningtree/treeserver.cpp
+++ b/src/modules/m_spanningtree/treeserver.cpp
@@ -24,7 +24,7 @@
 #include "socket.h"
 #include "xline.h"
 #include "main.h"
-#include "../spanningtree.h"
+#include "modules/spanningtree.h"
 
 #include "utils.h"
 #include "treeserver.h"
diff --git a/src/modules/m_spanningtree/treeserver.h b/src/modules/m_spanningtree/treeserver.h
index 60b6d1defc..f5d81bc735 100644
--- a/src/modules/m_spanningtree/treeserver.h
+++ b/src/modules/m_spanningtree/treeserver.h
@@ -19,8 +19,7 @@
  */
 
 
-#ifndef M_SPANNINGTREE_TREESERVER_H
-#define M_SPANNINGTREE_TREESERVER_H
+#pragma once
 
 #include "treesocket.h"
 
@@ -210,5 +209,3 @@ class TreeServer : public classbase
 	 */
 	~TreeServer();
 };
-
-#endif
diff --git a/src/modules/m_spanningtree/treesocket.h b/src/modules/m_spanningtree/treesocket.h
index 85d256c616..2d975a4bfb 100644
--- a/src/modules/m_spanningtree/treesocket.h
+++ b/src/modules/m_spanningtree/treesocket.h
@@ -20,8 +20,7 @@
  */
 
 
-#ifndef M_SPANNINGTREE_TREESOCKET_H
-#define M_SPANNINGTREE_TREESOCKET_H
+#pragma once
 
 #include "socket.h"
 #include "inspircd.h"
@@ -318,6 +317,3 @@ class TreeSocket : public BufferedSocket
 	 */
 	bool Introduced();
 };
-
-#endif
-
diff --git a/src/modules/m_spanningtree/treesocket1.cpp b/src/modules/m_spanningtree/treesocket1.cpp
index 26171ee729..6a528ed8d8 100644
--- a/src/modules/m_spanningtree/treesocket1.cpp
+++ b/src/modules/m_spanningtree/treesocket1.cpp
@@ -26,7 +26,7 @@
 #include "socketengine.h"
 
 #include "main.h"
-#include "../spanningtree.h"
+#include "modules/spanningtree.h"
 #include "utils.h"
 #include "treeserver.h"
 #include "link.h"
diff --git a/src/modules/m_spanningtree/utils.h b/src/modules/m_spanningtree/utils.h
index 0d44cd24fb..fed90c2533 100644
--- a/src/modules/m_spanningtree/utils.h
+++ b/src/modules/m_spanningtree/utils.h
@@ -20,8 +20,7 @@
  */
 
 
-#ifndef M_SPANNINGTREE_UTILS_H
-#define M_SPANNINGTREE_UTILS_H
+#pragma once
 
 #include "inspircd.h"
 
@@ -179,5 +178,3 @@ class SpanningTreeUtilities : public classbase
 	 */
 	void RefreshIPCache();
 };
-
-#endif
diff --git a/src/modules/m_sqlauth.cpp b/src/modules/m_sqlauth.cpp
index 8647e3e9ed..e92eea3a5c 100644
--- a/src/modules/m_sqlauth.cpp
+++ b/src/modules/m_sqlauth.cpp
@@ -18,8 +18,8 @@
 
 
 #include "inspircd.h"
-#include "sql.h"
-#include "hash.h"
+#include "modules/sql.h"
+#include "modules/hash.h"
 
 /* $ModDesc: Allow/Deny connections based upon an arbitrary SQL table */
 
diff --git a/src/modules/m_sqloper.cpp b/src/modules/m_sqloper.cpp
index 881b8d6d2f..b5b020d9d6 100644
--- a/src/modules/m_sqloper.cpp
+++ b/src/modules/m_sqloper.cpp
@@ -18,8 +18,8 @@
 
 
 #include "inspircd.h"
-#include "sql.h"
-#include "hash.h"
+#include "modules/sql.h"
+#include "modules/hash.h"
 
 /* $ModDesc: Allows storage of oper credentials in an SQL table */
 
diff --git a/src/modules/m_sslinfo.cpp b/src/modules/m_sslinfo.cpp
index a04a643a07..b51c30b768 100644
--- a/src/modules/m_sslinfo.cpp
+++ b/src/modules/m_sslinfo.cpp
@@ -18,7 +18,7 @@
 
 
 #include "inspircd.h"
-#include "ssl.h"
+#include "modules/ssl.h"
 
 /* $ModDesc: Provides SSL metadata, including /WHOIS information and /SSLINFO command */
 
diff --git a/src/modules/m_sslmodes.cpp b/src/modules/m_sslmodes.cpp
index fbd77c2491..d862a07060 100644
--- a/src/modules/m_sslmodes.cpp
+++ b/src/modules/m_sslmodes.cpp
@@ -22,7 +22,7 @@
 
 
 #include "inspircd.h"
-#include "ssl.h"
+#include "modules/ssl.h"
 
 /* $ModDesc: Provides channel mode +z to allow for Secure/SSL only channels */
 
diff --git a/src/modules/m_uhnames.cpp b/src/modules/m_uhnames.cpp
index 1b0c91c942..a0ff796aee 100644
--- a/src/modules/m_uhnames.cpp
+++ b/src/modules/m_uhnames.cpp
@@ -20,7 +20,7 @@
 
 
 #include "inspircd.h"
-#include "m_cap.h"
+#include "modules/cap.h"
 
 /* $ModDesc: Provides the UHNAMES facility. */
 
diff --git a/win/config.h.cmake b/win/config.h.cmake
index 47cdb9f650..05c3ce2f99 100644
--- a/win/config.h.cmake
+++ b/win/config.h.cmake
@@ -1,5 +1,4 @@
-#ifndef INSPIRCD_CONFIG_H
-#define INSPIRCD_CONFIG_H
+#pragma once
 
 #define BRANCH "@MAJOR_VERSION@.@MINOR_VERSION@"
 #define VERSION "@FULL_VERSION@"
@@ -14,5 +13,3 @@
 
 #include "inspircd_win32wrapper.h"
 #include "threadengines/threadengine_win32.h"
-
-#endif
\ No newline at end of file
diff --git a/win/inspircd_memory_functions.cpp b/win/inspircd_memory_functions.cpp
index 3987083172..2093bf3a8e 100644
--- a/win/inspircd_memory_functions.cpp
+++ b/win/inspircd_memory_functions.cpp
@@ -16,6 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+
 #include <windows.h>
 #include <exception>
 #include <new>
diff --git a/win/inspircd_win32wrapper.cpp b/win/inspircd_win32wrapper.cpp
index ebc4985293..7a07868f90 100644
--- a/win/inspircd_win32wrapper.cpp
+++ b/win/inspircd_win32wrapper.cpp
@@ -22,6 +22,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+
 #include "inspircd_win32wrapper.h"
 #include "inspircd.h"
 #include "configreader.h"
@@ -203,7 +204,7 @@ DWORD CWin32Exception::GetErrorCode()
 }
 
 #include "../src/modules/m_spanningtree/link.h"
-#include "../src/modules/ssl.h"
+#include "modules/ssl.h"
 template class reference<Link>;
 template class reference<Autoconnect>;
 template class reference<ssl_cert>;
diff --git a/win/inspircd_win32wrapper.h b/win/inspircd_win32wrapper.h
index 75404ef8b2..9b18715cda 100644
--- a/win/inspircd_win32wrapper.h
+++ b/win/inspircd_win32wrapper.h
@@ -19,13 +19,11 @@
  */
 
 
+#pragma once
+
 /* Windows Port
    Wrapper Functions/Definitions
    By Burlex */
-
-#ifndef INSPIRCD_WIN32WRAPPER_H
-#define INSPIRCD_WIN32WRAPPER_H
-
 /*
  * Starting with PSAPI version 2 for Windows 7 and Windows Server 2008 R2, this function is defined as K32GetProcessMemoryInfo in Psapi.h and exported
  * in Kernel32.lib and Kernel32.dll. However, you should always call this function as GetProcessMemoryInfo. To ensure correct resolution of symbols
@@ -200,6 +198,3 @@ class CWin32Exception : public std::exception
 	char szErrorString[500];
 	DWORD dwErrorCode;
 };
-
-#endif
-
diff --git a/win/win32service.h b/win/win32service.h
index e4500be131..d8177eabce 100644
--- a/win/win32service.h
+++ b/win/win32service.h
@@ -15,7 +15,9 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+
 #pragma once
+
 #ifdef _WIN32
 
 /* Hook for win32service.cpp to exit properly with the service specific error code */