Preproc symbols to detect architecture/os.

For details see: http://sourceforge.net/p/predef/wiki/Home/
Symbol SAILFISHOS is untested and likely has to be passed to the
compiler from the outside.

src/doorkeeperConfig.h.in

@@ -7,4 +7,6 @@
 #	define DATA_PATH ""
 #endif
 
+#define APP_NAME "@PROJECT_NAME@"
+
 #endif

src/main.cpp

@@ -1,5 +1,7 @@
 #include "doorkeeper.hpp"
 #include "doorkeeperConfig.h"
+#include "platform.h"
+#include "platformstrings.h"
 #include <iostream>
 #include <fstream>
 #include <memory>
@@ -8,6 +10,8 @@ int main() {
 	typedef dk::Tyler<2> Tiler;
 	typedef std::unique_ptr<std::ifstream> ifstreamptr;
 
+	std::cout << "Welcome to " << APP_NAME << ' ' << DK_DEVICE_STRING << " version for " << DK_OS_STRING << ' ' << DK_ARCH_STRING << ' ' << DK_BIT_STRING << '\n';
+
 	Tiler tiler(Tiler::coords(10, 6), Tiler::coords(64));
 
 	const std::string map1(DATA_PATH"/test.map");

src/platform.h

@@ -0,0 +1,71 @@
+#ifndef id054C8BCA27C84EAA825922EC0A4F3317
+#define id054C8BCA27C84EAA825922EC0A4F3317
+
+#if defined(__ANDROID__)
+#	define DK_POSIX
+#	define DK_ANDROID
+#	define DK_MOBILE
+#elif defined(SAILFISHOS)
+#	define DK_POSIX
+#	define DK_SAILFISHOS
+#	define DK_MOBILE
+#elif defined(__gnu_linux__) || defined(__linux__) || defined(linux)
+#	define DK_POSIX
+#	define DK_LINUX
+#	define DK_PC
+#elif defined(_WIN16) || defined(_WIN32) || defined(_WIN64) || \
+	defined(__WIN32__) || defined(__TOS_WIN__) || defined(__WINDOWS__)
+#	if defined(_WIN32) || defined(__WIN32__)
+#		define DK_WIN32
+#	endif
+#	define DK_WINDOWS
+#	define DK_PC
+#else
+#	error "Unknown platform"
+#endif
+
+#if defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || \
+	defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64)
+#	define DK_X86_64
+#	define DK_64_BIT
+#elif defined(__arm__)
+#	if defined(__ARM_ARCH_6__)
+#		define DK_ARM_VERSION 6
+#	elif defined(__ARM_ARCH_7__)
+#		define DK_ARM_VERSION 7
+#	else
+#		error "Unknown ARM version"
+#	endif
+#	define DK_32_BIT
+#	define DK_ARM
+#elif defined(_M_ARM)
+#	if _M_ARM != 6 && _M_ARM != 7
+#		error "Unknown ARM version"
+#	endif
+#	define DK_ARM_VERSION _M_ARM
+#	define DK_32_BIT
+#	define DK_ARM
+#elif defined(__TARGET_ARCH_ARM)
+#	if __TARGET_ARCH_ARM != 6 && __TARGET_ARCH_ARM != 7
+#		error "Unknown ARM version"
+#	endif
+#	define DK_ARM_VERSION __TARGET_ARCH_ARM
+#	define DK_32_BIT
+#	define DK_ARM
+#elif defined(__aarch64__)
+#	define DK_ARM
+#	define DK_64_BIT
+#elif defined(i386) || defined(__i386) || defined(__i386__) || \
+	defined(__i486__) || defined(__i586__) || defined(__i686__) || \
+	defined(_M_I86) || defined(_M_IX86) || defined(_X86_) || defined(__INTEL__)
+#	define DK_X86
+#	define DK_32_BIT
+#elif defined(__ia64__) || defined(_IA64) || defined(__IA64__) || \
+	defined(_M_IA64) || defined(__itanium__)
+#	define DK_IA64
+#	define DK_64_BIT
+#else
+#	error "Unknown architecture"
+#endif
+
+#endif

src/platformstrings.h

@@ -0,0 +1,47 @@
+#ifndef id2802AD0DCAF7443CA095A5AAF417015E
+#define id2802AD0DCAF7443CA095A5AAF417015E
+
+#define STR1_LOC(x) #x
+#define STRINGIZE(x) STR1_LOC(x)
+
+#if defined(DK_64_BIT)
+#	define DK_BIT_STRING "64-bit"
+#elif defined(DK_32_BIT)
+#	define DK_BIT_STRING "32-bit"
+#else
+#	error "No registry size defined"
+#endif
+
+#if defined(DK_ARM)
+#	if defined(DK_32_BIT)
+#		define DK_ARCH_STRING "ARMv" STRINGIZE(DK_ARM_VERSION)
+#	else
+#		define DK_ARCH_STRING "ARM"
+#	endif
+#elif defined(DK_X86)
+#	define DK_ARCH_STRING "x86"
+#elif defined(DK_X86_64)
+#	define DK_ARCH_STRING "amd64"
+#elif defined(DK_IA64)
+#	define DK_ARCH_STRING "ia64"
+#else
+#	error "No architecture defined"
+#endif
+
+#if defined(DK_LINUX)
+#	define DK_OS_STRING "Linux"
+#elif defined(DK_WINDOWS)
+#	define DK_OS_STRING "Windows"
+#elif defined(DK_ANDROID)
+#	define DK_OS_STRING "Android"
+#endif
+
+#if defined(DK_PC)
+#	define DK_DEVICE_STRING "PC"
+#elif defined(DK_MOBILE)
+#	define DK_DEVICE_STRING "Mobile"
+#else
+#	error "No device type defined"
+#endif
+
+#endif