Say hello to Qt for Native Client.

This commits adds build system to support for the native 
client compiler (x86-only for now), sets up global defines,
and adds compile fixes for QtCore and QtGui.

Details:

* Add mkspecs for linux-nacl-g++ and macx-nacl-c++
* Add nacl configure option
* Add qconfig-minimal-system-dependencies.h
* Define Q_OS_NACL in qglobal.h
* Add qnacalunimplemented.h/cpp with POSIX stubs.
* .pro file changes for cross-compiling on Mac

2 files changed, 249 insertions, 0 deletions

diff --git a/mkspecs/qws/linux-nacl-g++/qmake.conf b/mkspecs/qws/linux-nacl-g++/qmake.conf
new file mode 100644
index 0000000..83ce65b
--- /dev/null
+++ b/mkspecs/qws/linux-nacl-g++/qmake.conf
@@ -0,0 +1,74 @@
+#
+# qmake configuration for building with nacl-g++
+#
+
+include(../../common/unix.conf)
+include(../../common/qws.conf)
+
+QT                      = core gui
+
+# copy of ../../common/g++.conf, with modifications:
+
+QMAKE_CC                = nacl-gcc
+QMAKE_CXX               = nacl-g++
+QMAKE_LINK              = nacl-g++
+QMAKE_LINK_SHLIB        = nacl-g++
+
+#QMAKE_CC		= gcc
+QMAKE_CFLAGS		+= -pipe -DXP_UNIX -DNACL_STANDALONE=1
+QMAKE_CFLAGS_DEPS	+= -M
+QMAKE_CFLAGS_WARN_ON	+= -Wall -W
+QMAKE_CFLAGS_WARN_OFF	+= -w
+QMAKE_CFLAGS_RELEASE	+= -O2
+QMAKE_CFLAGS_DEBUG	+= -g
+QMAKE_CFLAGS_SHLIB	+= -fPIC
+#QMAKE_CFLAGS_STATIC_LIB	+= -fPIC
+QMAKE_CFLAGS_YACC	+= -Wno-unused -Wno-parentheses
+QMAKE_CFLAGS_HIDESYMS   += -fvisibility=hidden
+QMAKE_CFLAGS_PRECOMPILE += -x c-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}
+QMAKE_CFLAGS_USE_PRECOMPILE += -include ${QMAKE_PCH_OUTPUT_BASE}
+
+#QMAKE_CXX		= g++
+QMAKE_CXXFLAGS		+= $$QMAKE_CFLAGS
+QMAKE_CXXFLAGS_DEPS	+= $$QMAKE_CFLAGS_DEPS
+QMAKE_CXXFLAGS_WARN_ON	+= $$QMAKE_CFLAGS_WARN_ON
+QMAKE_CXXFLAGS_WARN_OFF	+= $$QMAKE_CFLAGS_WARN_OFF
+QMAKE_CXXFLAGS_RELEASE	+= $$QMAKE_CFLAGS_RELEASE
+QMAKE_CXXFLAGS_DEBUG	+= $$QMAKE_CFLAGS_DEBUG
+QMAKE_CXXFLAGS_SHLIB	+= $$QMAKE_CFLAGS_SHLIB
+QMAKE_CXXFLAGS_STATIC_LIB += $$QMAKE_CFLAGS_STATIC_LIB
+QMAKE_CXXFLAGS_YACC	+= $$QMAKE_CFLAGS_YACC
+QMAKE_CXXFLAGS_HIDESYMS += $$QMAKE_CFLAGS_HIDESYMS -fvisibility-inlines-hidden
+QMAKE_CXXFLAGS_PRECOMPILE += -x c++-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}
+QMAKE_CXXFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE
+
+#QMAKE_LINK		= g++
+#QMAKE_LINK_SHLIB	= g++
+QMAKE_LINK_C		= gcc
+QMAKE_LINK_C_SHLIB	= gcc
+QMAKE_LFLAGS		+=
+QMAKE_LFLAGS_RELEASE	+= -Wl,-O1
+QMAKE_LFLAGS_DEBUG	+=
+QMAKE_LFLAGS_APP	+=
+QMAKE_LFLAGS_SHLIB	+= -shared
+QMAKE_LFLAGS_PLUGIN	+= $$QMAKE_LFLAGS_SHLIB
+QMAKE_LFLAGS_SONAME	+= -Wl,-soname,
+QMAKE_LFLAGS_THREAD	+=
+QMAKE_LFLAGS_NOUNDEF	+= -Wl,--no-undefined
+QMAKE_LFLAGS_RPATH	= -Wl,-rpath,
+
+QMAKE_LIBS = -lgoogle_nacl_imc -lgoogle_nacl_npruntime -lgoogle_nacl_pgl -lgoogle_nacl_gpu -lpthread -lsrpc
+
+QMAKE_PCH_OUTPUT_EXT    = .gch
+
+# -Bsymbolic-functions (ld) support
+QMAKE_LFLAGS_BSYMBOLIC_FUNC = -Wl,-Bsymbolic-functions
+QMAKE_LFLAGS_DYNAMIC_LIST = -Wl,--dynamic-list,
+
+# modifications to linux.conf
+QMAKE_AR                = nacl-ar q
+QMAKE_OBJCOPY           = nacl-objcopy
+QMAKE_STRIP             = nacl-strip
+QMAKE_LIBS_DYNLOAD	=
+
+load(qt_config)
diff --git a/mkspecs/qws/linux-nacl-g++/qplatformdefs.h b/mkspecs/qws/linux-nacl-g++/qplatformdefs.h
new file mode 100644
index 0000000..a670ee5
--- /dev/null
+++ b/mkspecs/qws/linux-nacl-g++/qplatformdefs.h
@@ -0,0 +1,175 @@
+/****************************************************************************
+ **
+ ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+ ** All rights reserved.
+ ** Contact: Nokia Corporation (qt-info@nokia.com)
+ **
+ ** This file is part of the QtCore module of the Qt Toolkit.
+ **
+ ** $QT_BEGIN_LICENSE:LGPL$
+ ** No Commercial Usage
+ ** This file contains pre-release code and may not be distributed.
+ ** You may use this file in accordance with the terms and conditions
+ ** contained in the Technology Preview License Agreement accompanying
+ ** this package.
+ **
+ ** GNU Lesser General Public License Usage
+ ** Alternatively, this file may be used under the terms of the GNU Lesser
+ ** General Public License version 2.1 as published by the Free Software
+ ** Foundation and appearing in the file LICENSE.LGPL included in the
+ ** packaging of this file.  Please review the following information to
+ ** ensure the GNU Lesser General Public License version 2.1 requirements
+ ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+ **
+ ** In addition, as a special exception, Nokia gives you certain additional
+ ** rights.  These rights are described in the Nokia Qt LGPL Exception
+ ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+ **
+ ** If you have questions regarding the use of this file, please contact
+ ** Nokia at qt-info@nokia.com.
+ **
+ **
+ **
+ **
+ **
+ **
+ **
+ **
+ ** $QT_END_LICENSE$
+ **
+ ****************************************************************************/
+
+#ifndef QPLATFORMDEFS_H
+#define QPLATFORMDEFS_H
+
+// Get Qt defines/settings
+
+#define _POSIX_TIMERS
+
+#include "qglobal.h"
+
+
+#define _POSIX_TIMERS
+// Set any POSIX/XOPEN defines at the top of this file to turn on specific APIs
+
+// 1) need to reset default environment if _BSD_SOURCE is defined
+// 2) need to specify POSIX thread interfaces explicitly in glibc 2.0
+// 3) it seems older glibc need this to include the X/Open stuff
+#ifndef _GNU_SOURCE
+#  define _GNU_SOURCE
+#endif
+
+#include <unistd.h>
+
+
+// We are hot - unistd.h should have turned on the specific APIs we requested
+
+#include <sys/features.h>
+#include <pthread.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <grp.h>
+#include <pwd.h>
+#include <signal.h>
+//#include <dlfcn.h>
+
+#include <sys/types.h>
+//#include <sys/ioctl.h>
+//#include <sys/ipc.h>
+
+#include <sys/time.h>
+//#include <sys/shm.h>
+//#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+//#include <netinet/in.h>
+#ifndef QT_NO_IPV6IFNAME
+#include <net/if.h>
+#endif
+
+// extra disabling.
+#ifdef __native_client__ 
+#define QT_NO_FSFILEENGINE
+#define QT_NO_TRANSLATION
+#endif
+
+#ifdef QT_LARGEFILE_SUPPORT
+#define QT_STATBUF              struct stat64
+#define QT_STATBUF4TSTAT        struct stat64
+#define QT_STAT                 ::stat64
+#define QT_FSTAT                ::fstat64
+#define QT_LSTAT                ::lstat64
+#define QT_OPEN                 ::open64
+#define QT_TRUNCATE             ::truncate64
+#define QT_FTRUNCATE            ::ftruncate64
+#define QT_LSEEK                ::lseek64
+#else
+#define QT_STATBUF              struct stat
+#define QT_STATBUF4TSTAT        struct stat
+#define QT_STAT                 ::stat
+#define QT_FSTAT                ::fstat
+#define QT_LSTAT                ::lstat
+#define QT_OPEN                 ::open
+#define QT_TRUNCATE             ::truncate
+#define QT_FTRUNCATE            ::ftruncate
+#define QT_LSEEK                ::lseek
+#endif
+
+#ifdef QT_LARGEFILE_SUPPORT
+#define QT_FOPEN                ::fopen64
+#define QT_FSEEK                ::fseeko64
+#define QT_FTELL                ::ftello64
+#define QT_FGETPOS              ::fgetpos64
+#define QT_FSETPOS              ::fsetpos64
+#define QT_FPOS_T               fpos64_t
+#define QT_OFF_T                off64_t
+#else
+#define QT_FOPEN                ::fopen
+#define QT_FSEEK                ::fseek
+#define QT_FTELL                ::ftell
+#define QT_FGETPOS              ::fgetpos
+#define QT_FSETPOS              ::fsetpos
+#define QT_FPOS_T               fpos_t
+#define QT_OFF_T                long
+#endif
+
+#define QT_STAT_REG		S_IFREG
+#define QT_STAT_DIR		S_IFDIR
+#define QT_STAT_MASK		S_IFMT
+#define QT_STAT_LNK		S_IFLNK
+#define QT_SOCKET_CONNECT	::connect
+#define QT_SOCKET_BIND		::bind
+#define QT_FILENO		fileno
+#define QT_CLOSE		::close
+#define QT_READ			::read
+#define QT_WRITE		::write
+#define QT_ACCESS		::access
+#define QT_GETCWD		::getcwd
+#define QT_CHDIR		::chdir
+#define QT_MKDIR		::mkdir
+#define QT_RMDIR		::rmdir
+#define QT_OPEN_LARGEFILE       O_LARGEFILE
+#define QT_OPEN_RDONLY		O_RDONLY
+#define QT_OPEN_WRONLY		O_WRONLY
+#define QT_OPEN_RDWR		O_RDWR
+#define QT_OPEN_CREAT		O_CREAT
+#define QT_OPEN_TRUNC		O_TRUNC
+#define QT_OPEN_APPEND		O_APPEND
+
+#define QT_SIGNAL_RETTYPE	void
+#define QT_SIGNAL_ARGS		int
+#define QT_SIGNAL_IGNORE	SIG_IGN
+
+#if defined(__GLIBC__) && (__GLIBC__ >= 2)
+#define QT_SOCKLEN_T		socklen_t
+#else
+#define QT_SOCKLEN_T		int
+#endif
+
+#if defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE >= 500)
+#define QT_SNPRINTF		::snprintf
+#define QT_VSNPRINTF		::vsnprintf
+#endif
+
+
+#endif // QPLATFORMDEFS_H