Fix msvc annoyances (#5963)

* MSVC: Fix '/std:c++11' is not a valid compiler option

* MSVC/MINGW: Define 'WIN32_LEAN_AND_MEAN' for the whole project

In some obscure cases 'Windows.h" got includet before that definition, which leaded to compilation warnings+errors

* MSVC: '/arch:SSE' is only available for x86

* MSVC: Fix float conversation

* MSVC/MINGW: use winthreads on Windows

* MSVC: 'USE_CMAKE_CONFIG' might be already definied by CMake build system

* MSVC: Use all available cpu cores for compiling

* Add missing include ctime and use std::time_t

misc/winresource.rc

@@ -1,7 +1,9 @@
 #include <windows.h>
 #include <commctrl.h>
 #include <richedit.h>
+#ifndef USE_CMAKE_CONFIG_H
 #define USE_CMAKE_CONFIG_H
+#endif
 #include "config.h"
 #undef USE_CMAKE_CONFIG_H
 

src/CMakeLists.txt

@@ -703,9 +703,12 @@ include(CheckCXXCompilerFlag)
 
 if(MSVC)
 	# Visual Studio
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /std:c++11")
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /D WIN32_LEAN_AND_MEAN /MP")
 	# EHa enables SEH exceptions (used for catching segfaults)
-	set(CMAKE_CXX_FLAGS_RELEASE "/EHa /Ox /GL /FD /MT /GS- /Zi /arch:SSE /fp:fast /D NDEBUG /D _HAS_ITERATOR_DEBUGGING=0 /TP")
+	set(CMAKE_CXX_FLAGS_RELEASE "/EHa /Ox /GL /FD /MT /GS- /Zi /fp:fast /D NDEBUG /D _HAS_ITERATOR_DEBUGGING=0 /TP")
+	if(CMAKE_SIZEOF_VOID_P EQUAL 4)
+		set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /arch:SSE")
+	endif()
 	#set(CMAKE_EXE_LINKER_FLAGS_RELEASE "/LTCG /NODEFAULTLIB:\"libcmtd.lib\" /NODEFAULTLIB:\"libcmt.lib\"")
 	set(CMAKE_EXE_LINKER_FLAGS_RELEASE "/LTCG /INCREMENTAL:NO /DEBUG /OPT:REF /OPT:ICF")
 
@@ -748,6 +751,7 @@ else()
 
 	if(MINGW)
 		set(OTHER_FLAGS "${OTHER_FLAGS} -mthreads -fexceptions")
+		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DWIN32_LEAN_AND_MEAN")
 	endif()
 
 	set(CMAKE_CXX_FLAGS_RELEASE "-DNDEBUG ${RELEASE_WARNING_FLAGS} ${WARNING_FLAGS} ${OTHER_FLAGS} -Wall -pipe -funroll-loops")

src/database-postgresql.cpp

@@ -23,9 +23,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "database-postgresql.h"
 
 #ifdef _WIN32
-        #ifndef WIN32_LEAN_AND_MEAN
-                #define WIN32_LEAN_AND_MEAN
-        #endif
         // Without this some of the network functions are not found on mingw
         #ifndef _WIN32_WINNT
                 #define _WIN32_WINNT 0x0501

src/debug.h

@@ -26,8 +26,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "gettime.h"
 #include "log.h"
 
-#if (defined(WIN32) || defined(_WIN32_WCE))
-	#define WIN32_LEAN_AND_MEAN
+#ifdef _WIN32
 	#ifndef _WIN32_WINNT
 		#define _WIN32_WINNT 0x0501
 	#endif

src/mesh_generator_thread.cpp

@@ -223,7 +223,7 @@ void MeshUpdateQueue::fillDataFromMapBlockCache(QueuedMeshUpdate *q)
 
 	data->fillBlockDataBegin(q->p);
 
-	int t_now = time(0);
+	std::time_t t_now = std::time(0);
 
 	// Collect data for 3*3*3 blocks from cache
 	v3s16 dp;

src/mesh_generator_thread.h

@@ -20,6 +20,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #ifndef MESH_GENERATOR_THREAD_HEADER
 #define MESH_GENERATOR_THREAD_HEADER
 
+#include <ctime>
 #include <mutex>
 #include "mapblock_mesh.h"
 #include "threading/mutex_auto_lock.h"
@@ -30,7 +31,7 @@ struct CachedMapBlockData
 	v3s16 p = v3s16(-1337, -1337, -1337);
 	MapNode *data = nullptr; // A copy of the MapBlock's data member
 	int refcount_from_queue = 0;
-	int last_used_timestamp = std::time(0);
+	std::time_t last_used_timestamp = std::time(0);
 
 	CachedMapBlockData() {}
 	~CachedMapBlockData();

src/noise.cpp

@@ -47,8 +47,8 @@ typedef float (*Interp3dFxn)(
 		float x, float y, float z);
 
 float cos_lookup[16] = {
-	1.0,  0.9238,  0.7071,  0.3826, 0, -0.3826, -0.7071, -0.9238,
-	1.0, -0.9238, -0.7071, -0.3826, 0,  0.3826,  0.7071,  0.9238
+	1.0f,  0.9238f,  0.7071f,  0.3826f, .0f, -0.3826f, -0.7071f, -0.9238f,
+	1.0f, -0.9238f, -0.7071f, -0.3826f, .0f,  0.3826f,  0.7071f,  0.9238f
 };
 
 FlagDesc flagdesc_noiseparams[] = {

src/socket.cpp

@@ -34,9 +34,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "log.h"
 
 #ifdef _WIN32
-	#ifndef WIN32_LEAN_AND_MEAN
-		#define WIN32_LEAN_AND_MEAN
-	#endif
 	// Without this some of the network functions are not found on mingw
 	#ifndef _WIN32_WINNT
 		#define _WIN32_WINNT 0x0501

src/socket.h

@@ -21,9 +21,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #define SOCKET_HEADER
 
 #ifdef _WIN32
-	#ifndef WIN32_LEAN_AND_MEAN
-		#define WIN32_LEAN_AND_MEAN
-	#endif
 #ifndef _WIN32_WINNT
 	#define _WIN32_WINNT 0x0501
 #endif

src/threading/thread.cpp

@@ -261,10 +261,14 @@ bool Thread::bindToProcessor(unsigned int proc_number)
 
 	return false;
 
-#elif USE_WIN_THREADS
+#elif _MSC_VER
 
 	return SetThreadAffinityMask(getThreadHandle(), 1 << proc_number);
 
+#elif __MINGW32__
+
+	return SetThreadAffinityMask(pthread_gethandle(getThreadHandle()), 1 << proc_number);
+
 #elif __FreeBSD_version >= 702106 || defined(__linux__)
 
 	cpu_set_t cpuset;
@@ -309,10 +313,14 @@ bool Thread::bindToProcessor(unsigned int proc_number)
 
 bool Thread::setPriority(int prio)
 {
-#if USE_WIN_THREADS
+#ifdef _MSC_VER
 
 	return SetThreadPriority(getThreadHandle(), prio);
 
+#elif __MINGW32__
+
+	return SetThreadPriority(pthread_gethandle(getThreadHandle()), prio);
+
 #else
 
 	struct sched_param sparam;