平台相关的宏
Win Unix Mac 等多种系统平台的宏定义，平台移植时可做参考
#ifndef QGLOBAL_H
#define QGLOBAL_H
#define QT_VERSION_STR "3.1.2"
/*
QT_VERSION is (major << 16) + (minor << 8) + patch.
*/
#define QT_VERSION 0x030102
/*
The operating system, must be one of: (Q_OS_x)
MACX - Mac OS X
MAC9 - Mac OS 9
MSDOS - MS-DOS and Windows
OS2 - OS/2
OS2EMX - XFree86 on OS/2 (not PM)
WIN32 - Win32 (Windows 95/98/ME and Windows NT/2000/XP)
CYGWIN - Cygwin
SOLARIS - Sun Solaris
HPUX - HP-UX
ULTRIX - DEC Ultrix
LINUX - Linux
FREEBSD - FreeBSD
NETBSD - NetBSD
OPENBSD - OpenBSD
BSDI - BSD/OS
IRIX - SGI Irix
OSF - HP Tru64 UNIX
SCO - SCO OpenServer 5
UNIXWARE - UnixWare 7, Open UNIX 8
AIX - AIX
HURD - GNU Hurd
DGUX - DG/UX
RELIANT - Reliant UNIX
DYNIX - DYNIX/ptx
QNX - QNX
QNX6 - QNX RTP 6.1
LYNX - LynxOS
BSD4 - Any BSD 4.4 system
UNIX - Any UNIX BSD/SYSV system
*/
#if defined(__APPLE__) && defined(__GNUC__)
# define Q_OS_MACX
#elif defined(__MACOSX__)
# define Q_OS_MACX
#elif defined(macintosh)
# define Q_OS_MAC9
#elif defined(__CYGWIN__)
# define Q_OS_CYGWIN
#elif defined(MSDOS) || defined(_MSDOS)
# define Q_OS_MSDOS
#elif defined(__OS2__)
# if defined(__EMX__)
# define Q_OS_OS2EMX
# else
# define Q_OS_OS2
# endif
#elif !defined(SAG_COM) && (defined(WIN64) || defined(_WIN64) || defined(__WIN64__))
# define Q_OS_WIN32
# define Q_OS_WIN64
#elif !defined(SAG_COM) && (defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__NT__))
# define Q_OS_WIN32
#elif defined(__MWERKS__) && defined(__INTEL__)
# define Q_OS_WIN32
#elif defined(__sun) || defined(sun)
# define Q_OS_SOLARIS
#elif defined(hpux) || defined(__hpux)
# define Q_OS_HPUX
#elif defined(__ultrix) || defined(ultrix)
# define Q_OS_ULTRIX
#elif defined(sinix)
# define Q_OS_RELIANT
#elif defined(__linux__) || defined(__linux)
# define Q_OS_LINUX
#elif defined(__FreeBSD__)
# define Q_OS_FREEBSD
# define Q_OS_BSD4
#elif defined(__NetBSD__)
# define Q_OS_NETBSD
# define Q_OS_BSD4
#elif defined(__OpenBSD__)
# define Q_OS_OPENBSD
# define Q_OS_BSD4
#elif defined(__bsdi__)
# define Q_OS_BSDI
# define Q_OS_BSD4
#elif defined(__sgi)
# define Q_OS_IRIX
#elif defined(__osf__)
# define Q_OS_OSF
#elif defined(_AIX)
# define Q_OS_AIX
#elif defined(__Lynx__)
# define Q_OS_LYNX
#elif defined(__GNU_HURD__)
# define Q_OS_HURD
#elif defined(__DGUX__)
# define Q_OS_DGUX
#elif defined(__QNXNTO__)
# define Q_OS_QNX6
#elif defined(__QNX__)
# define Q_OS_QNX
#elif defined(_SEQUENT_)
# define Q_OS_DYNIX
#elif defined(_SCO_DS) /* SCO OpenServer 5 + GCC */
# define Q_OS_SCO
#elif defined(__USLC__) /* all SCO platforms + UDK or OUDK */
# define Q_OS_UNIXWARE
# define Q_OS_UNIXWARE7
#elif defined(__svr4__) && defined(i386) /* Open UNIX 8 + GCC */
# define Q_OS_UNIXWARE
# define Q_OS_UNIXWARE7
#else
# error "Qt has not been ported to this OS - talk to qt-bugs@trolltech.com"
#endif
#if defined(Q_OS_MAC9) || defined(Q_OS_MACX)
# define Q_OS_MAC
#endif
#if defined(Q_OS_MAC9) || defined(Q_OS_MSDOS) || defined(Q_OS_OS2) || defined(Q_OS_WIN32) || defined(Q_OS_WIN64)
# undef Q_OS_UNIX
#elif !defined(Q_OS_UNIX)
# define Q_OS_UNIX
#endif
============= End