/****************************************************************************

**

** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the qmake application 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 either Technology Preview License Agreement or the

** Beta Release License Agreement.

**

** 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 1.0, included in the file LGPL_EXCEPTION.txt in this

** package.

**

** GNU General Public License Usage

** Alternatively, this file may be used under the terms of the GNU

** General Public License version 3.0 as published by the Free Software

** Foundation and appearing in the file LICENSE.GPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU General Public License version 3.0 requirements will be

** met: http://www.gnu.org/copyleft/gpl.html.

**

** If you are unsure which license is appropriate for your use, please

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****************************************************************************/

#include "option.h"

#include "cachekeys.h"

#include <qdir.h>

#include <qregexp.h>

#include <qhash.h>

#include <qdebug.h>

#include <qsettings.h>

#include <stdlib.h>

#include <stdarg.h>

QT_BEGIN_NAMESPACE

//convenience

const char *Option::application_argv0 = 0;

QString Option::prf_ext;

QString Option::js_ext;

QString Option::prl_ext;

QString Option::libtool_ext;

QString Option::pkgcfg_ext;

QString Option::ui_ext;

QStringList Option::h_ext;

QString Option::cpp_moc_ext;

QString Option::h_moc_ext;

QStringList Option::cpp_ext;

QStringList Option::c_ext;

QString Option::obj_ext;

QString Option::lex_ext;

QString Option::yacc_ext;

QString Option::pro_ext;

QString Option::dir_sep;

QString Option::dirlist_sep;

QString Option::h_moc_mod;

QString Option::cpp_moc_mod;

QString Option::yacc_mod;

QString Option::lex_mod;

QString Option::sysenv_mod;

QString Option::res_ext;

char Option::field_sep;

//mode

Option::QMAKE_MODE Option::qmake_mode = Option::QMAKE_GENERATE_NOTHING;

//all modes

QString Option::qmake_abslocation;

int Option::warn_level = WarnLogic;

int Option::debug_level = 0;

QFile Option::output;

QString Option::output_dir;

bool Option::recursive = false;

QStringList Option::before_user_vars;

QStringList Option::after_user_vars;

QStringList Option::user_configs;

QStringList Option::after_user_configs;

QString Option::user_template;

QString Option::user_template_prefix;

QStringList Option::shellPath;

#if defined(Q_OS_WIN32)

Option::TARG_MODE Option::target_mode = Option::TARG_WIN_MODE;

#elif defined(Q_OS_MAC)

Option::TARG_MODE Option::target_mode = Option::TARG_MACX_MODE;

#elif defined(Q_OS_QNX6)

Option::TARG_MODE Option::target_mode = Option::TARG_QNX6_MODE;

#else

Option::TARG_MODE Option::target_mode = Option::TARG_UNIX_MODE;

#endif

//QMAKE_*_PROPERTY stuff

QStringList Option::prop::properties;

//QMAKE_GENERATE_PROJECT stuff

bool Option::projfile::do_pwd = true;

QStringList Option::projfile::project_dirs;

//QMAKE_GENERATE_MAKEFILE stuff

QString Option::mkfile::qmakespec;

int Option::mkfile::cachefile_depth = -1;

bool Option::mkfile::do_deps = true;

bool Option::mkfile::do_mocs = true;

bool Option::mkfile::do_dep_heuristics = true;

bool Option::mkfile::do_preprocess = false;

bool Option::mkfile::do_stub_makefile = false;

bool Option::mkfile::do_cache = true;

QString Option::mkfile::cachefile;

QStringList Option::mkfile::project_files;

QString Option::mkfile::qmakespec_commandline;

static Option::QMAKE_MODE default_mode(QString progname)

{

    int s = progname.lastIndexOf(Option::dir_sep);

    if(s != -1)

        progname = progname.right(progname.length() - (s + 1));

    if(progname == "qmakegen")

        return Option::QMAKE_GENERATE_PROJECT;

    else if(progname == "qt-config")

        return Option::QMAKE_QUERY_PROPERTY;

    return Option::QMAKE_GENERATE_MAKEFILE;

}

QString project_builtin_regx();

bool usage(const char *a0)

{

    fprintf(stdout, "Usage: %s [mode] [options] [files]\n"

            "\n"

            "QMake has two modes, one mode for generating project files based on\n"

            "some heuristics, and the other for generating makefiles. Normally you\n"

            "shouldn't need to specify a mode, as makefile generation is the default\n"

            "mode for qmake, but you may use this to test qmake on an existing project\n"

            "\n"

            "Mode:\n"

            "  -project       Put qmake into project file generation mode%s\n"

            "                 In this mode qmake interprets files as files to\n"

            "                 be built,\n"

            "                 defaults to %s\n"

            "  -makefile      Put qmake into makefile generation mode%s\n"

            "                 In this mode qmake interprets files as project files to\n"

            "                 be processed, if skipped qmake will try to find a project\n"

            "                 file in your current working directory\n"

            "\n"

            "Warnings Options:\n"

            "  -Wnone         Turn off all warnings\n"

            "  -Wall          Turn on all warnings\n"

            "  -Wparser       Turn on parser warnings\n"

            "  -Wlogic        Turn on logic warnings\n"

            "\n"

            "Options:\n"

            "   * You can place any variable assignment in options and it will be     *\n"

            "   * processed as if it was in [files]. These assignments will be parsed *\n"

            "   * before [files].                                                     *\n"

            "  -o file        Write output to file\n"

            "  -unix          Run in unix mode\n"

            "  -win32         Run in win32 mode\n"

            "  -macx          Run in Mac OS X mode\n"

            "  -d             Increase debug level\n"

            "  -t templ       Overrides TEMPLATE as templ\n"

            "  -tp prefix     Overrides TEMPLATE so that prefix is prefixed into the value\n"

            "  -help          This help\n"

            "  -v             Version information\n"

            "  -after         All variable assignments after this will be\n"

            "                 parsed after [files]\n"

            "  -norecursive   Don't do a recursive search\n"

            "  -recursive     Do a recursive search\n"

            "  -set <prop> <value> Set persistent property\n"

            "  -query <prop>  Query persistent property. Show all if <prop> is empty.\n"

            "  -cache file    Use file as cache           [makefile mode only]\n"

            "  -spec spec     Use spec as QMAKESPEC       [makefile mode only]\n"

            "  -nocache       Don't use a cache file      [makefile mode only]\n"

            "  -nodepend      Don't generate dependencies [makefile mode only]\n"

            "  -nomoc         Don't generate moc targets  [makefile mode only]\n"

            "  -nopwd         Don't look for files in pwd [project mode only]\n"

            ,a0,

            default_mode(a0) == Option::QMAKE_GENERATE_PROJECT  ? " (default)" : "", project_builtin_regx().toLatin1().constData(),

            default_mode(a0) == Option::QMAKE_GENERATE_MAKEFILE ? " (default)" : ""

        );

    return false;

}

int

Option::parseCommandLine(int argc, char **argv, int skip)

{

    bool before = true;

    for(int x = skip; x < argc; x++) {

        if(*argv[x] == '-' && strlen(argv[x]) > 1) { /* options */

            QString opt = argv[x] + 1;

            //first param is a mode, or we default

            if(x == 1) {

                bool specified = true;

                if(opt == "project") {

                    Option::recursive = true;

                    Option::qmake_mode = Option::QMAKE_GENERATE_PROJECT;

                } else if(opt == "prl") {

                    Option::mkfile::do_deps = false;

                    Option::mkfile::do_mocs = false;

                    Option::qmake_mode = Option::QMAKE_GENERATE_PRL;

                } else if(opt == "set") {

                    Option::qmake_mode = Option::QMAKE_SET_PROPERTY;

                } else if(opt == "query") {

                    Option::qmake_mode = Option::QMAKE_QUERY_PROPERTY;

                } else if(opt == "makefile") {

                    Option::qmake_mode = Option::QMAKE_GENERATE_MAKEFILE;

                } else {

                    specified = false;

                }

                if(specified)

                    continue;

            }

            //all modes

            if(opt == "o" || opt == "output") {

                Option::output.setFileName(argv[++x]);

            } else if(opt == "after") {

                before = false;

            } else if(opt == "t" || opt == "template") {

                Option::user_template = argv[++x];

            } else if(opt == "tp" || opt == "template_prefix") {

                Option::user_template_prefix = argv[++x];

            } else if(opt == "mac9") {

                Option::target_mode = TARG_MAC9_MODE;

            } else if(opt == "macx") {

                Option::target_mode = TARG_MACX_MODE;

            } else if(opt == "unix") {

                Option::target_mode = TARG_UNIX_MODE;

            } else if(opt == "win32") {

                Option::target_mode = TARG_WIN_MODE;

            } else if(opt == "d") {

                Option::debug_level++;

            } else if(opt == "version" || opt == "v" || opt == "-version") {

                fprintf(stdout,

                        "QMake version %s\n"

                        "Using Qt version %s in %s\n",

                        qmake_version(), QT_VERSION_STR,

                        QLibraryInfo::location(QLibraryInfo::LibrariesPath).toLatin1().constData());

#ifdef QMAKE_OPENSOURCE_VERSION

                fprintf(stdout, "QMake is Open Source software from Nokia Corporation and/or its subsidiary(-ies).\n");

#endif

                return Option::QMAKE_CMDLINE_BAIL;

            } else if(opt == "h" || opt == "help") {

                return Option::QMAKE_CMDLINE_SHOW_USAGE;

            } else if(opt == "Wall") {

                Option::warn_level |= WarnAll;

            } else if(opt == "Wparser") {

                Option::warn_level |= WarnParser;

            } else if(opt == "Wlogic") {

                Option::warn_level |= WarnLogic;

            } else if(opt == "Wnone") {

                Option::warn_level = WarnNone;

            } else if(opt == "r" || opt == "recursive") {

                Option::recursive = true;

            } else if(opt == "norecursive") {

                Option::recursive = false;

            } else if(opt == "config") {

                Option::user_configs += argv[++x];

            } else {

                if(Option::qmake_mode == Option::QMAKE_GENERATE_MAKEFILE ||

                   Option::qmake_mode == Option::QMAKE_GENERATE_PRL) {

                    if(opt == "nodepend" || opt == "nodepends") {

                        Option::mkfile::do_deps = false;

                    } else if(opt == "nomoc") {

                        Option::mkfile::do_mocs = false;

                    } else if(opt == "nocache") {

                        Option::mkfile::do_cache = false;

                    } else if(opt == "createstub") {

                        Option::mkfile::do_stub_makefile = true;

                    } else if(opt == "nodependheuristics") {

                        Option::mkfile::do_dep_heuristics = false;

                    } else if(opt == "E") {

                        Option::mkfile::do_preprocess = true;

                    } else if(opt == "cache") {

                        Option::mkfile::cachefile = argv[++x];

                    } else if(opt == "platform" || opt == "spec") {

                        Option::mkfile::qmakespec = argv[++x];

                        Option::mkfile::qmakespec_commandline = argv[x];

                    } else {

                        fprintf(stderr, "***Unknown option -%s\n", opt.toLatin1().constData());

                        return Option::QMAKE_CMDLINE_SHOW_USAGE | Option::QMAKE_CMDLINE_ERROR;

                    }

                } else if(Option::qmake_mode == Option::QMAKE_GENERATE_PROJECT) {

                    if(opt == "nopwd") {

                        Option::projfile::do_pwd = false;

                    } else {

                        fprintf(stderr, "***Unknown option -%s\n", opt.toLatin1().constData());

                        return Option::QMAKE_CMDLINE_SHOW_USAGE | Option::QMAKE_CMDLINE_ERROR;

                    }

                }

            }

        } else {

            QString arg = argv[x];

            if(arg.indexOf('=') != -1) {

                if(before)

                    Option::before_user_vars.append(arg);

                else

                    Option::after_user_vars.append(arg);

            } else {

                bool handled = true;

                if(Option::qmake_mode == Option::QMAKE_QUERY_PROPERTY ||

                    Option::qmake_mode == Option::QMAKE_SET_PROPERTY) {

                    Option::prop::properties.append(arg);

                } else {

                    QFileInfo fi(arg);

                    if(!fi.makeAbsolute()) //strange

                        arg = fi.filePath();

                    if(Option::qmake_mode == Option::QMAKE_GENERATE_MAKEFILE ||

                       Option::qmake_mode == Option::QMAKE_GENERATE_PRL)

                        Option::mkfile::project_files.append(arg);

                    else if(Option::qmake_mode == Option::QMAKE_GENERATE_PROJECT)

                        Option::projfile::project_dirs.append(arg);

                    else

                        handled = false;

                }

                if(!handled) {

                    return Option::QMAKE_CMDLINE_SHOW_USAGE | Option::QMAKE_CMDLINE_ERROR;

                }

            }

        }

    }

    return Option::QMAKE_CMDLINE_SUCCESS;

}

#ifdef Q_OS_WIN

static QStringList detectShellPath()

{

    QStringList paths;

    QString path = qgetenv("PATH");

    QStringList pathlist = path.toLower().split(";");

    for (int i = 0; i < pathlist.count(); i++) {

        QString maybeSh = pathlist.at(i) + "/sh.exe";

        if (QFile::exists(maybeSh)) {

            paths.append(maybeSh);

        }

    }

    return paths;

}

#endif

int

Option::init(int argc, char **argv)

{

    Option::application_argv0 = 0;

    Option::cpp_moc_mod = "";

    Option::h_moc_mod = "moc_";

    Option::lex_mod = "_lex";

    Option::yacc_mod = "_yacc";

    Option::prl_ext = ".prl";

    Option::libtool_ext = ".la";

    Option::pkgcfg_ext = ".pc";

    Option::prf_ext = ".prf";

    Option::js_ext = ".js";

    Option::ui_ext = ".ui";

    Option::h_ext << ".h" << ".hpp" << ".hh" << ".hxx";

    Option::c_ext << ".c";

#ifndef Q_OS_WIN

    Option::h_ext << ".H";

#endif

    Option::cpp_moc_ext = ".moc";

    Option::h_moc_ext = ".cpp";

    Option::cpp_ext << ".cpp" << ".cc" << ".cxx";

#ifndef Q_OS_WIN

    Option::cpp_ext << ".C";

#endif

    Option::lex_ext = ".l";

    Option::yacc_ext = ".y";

    Option::pro_ext = ".pro";

#ifdef Q_OS_WIN

    Option::dirlist_sep = ";";

    Option::shellPath = detectShellPath();

#else

    Option::dirlist_sep = ":";

#endif

    Option::sysenv_mod = "QMAKE_ENV_";

    Option::field_sep = ' ';

    if(argc && argv) {

        Option::application_argv0 = argv[0];

        QString argv0 = argv[0];

        if(Option::qmake_mode == Option::QMAKE_GENERATE_NOTHING)

            Option::qmake_mode = default_mode(argv0);

        if(!argv0.isEmpty() && !QFileInfo(argv0).isRelative()) {

            Option::qmake_abslocation = argv0;

        } else if (argv0.contains(QLatin1Char('/'))

#ifdef Q_OS_WIN

		   || argv0.contains(QLatin1Char('\\'))

#endif

	    ) { //relative PWD

            Option::qmake_abslocation = QDir::current().absoluteFilePath(argv0);

        } else { //in the PATH

            QByteArray pEnv = qgetenv("PATH");

            QDir currentDir = QDir::current();

#ifdef Q_OS_WIN

            QStringList paths = QString::fromLocal8Bit(pEnv).split(QLatin1String(";"));

#else

            QStringList paths = QString::fromLocal8Bit(pEnv).split(QLatin1String(":"));

#endif

            for (QStringList::const_iterator p = paths.constBegin(); p != paths.constEnd(); ++p) {

                if ((*p).isEmpty())

                    continue;

                QString candidate = currentDir.absoluteFilePath(*p + QLatin1Char('/') + argv0);

#ifdef Q_OS_WIN

                candidate += ".exe";

#endif

                if (QFile::exists(candidate)) {

                    Option::qmake_abslocation = candidate;

                    break;

                }

            }

        }

        if(!Option::qmake_abslocation.isNull())

            Option::qmake_abslocation = QDir::cleanPath(Option::qmake_abslocation);

    } else {

        Option::qmake_mode = Option::QMAKE_GENERATE_MAKEFILE;

    }

    const QByteArray envflags = qgetenv("QMAKEFLAGS");

    if (!envflags.isNull()) {

        int env_argc = 0, env_size = 0, currlen=0;

        char quote = 0, **env_argv = NULL;

        for (int i = 0; i < envflags.size(); ++i) {

            if (!quote && (envflags.at(i) == '\'' || envflags.at(i) == '"')) {

                quote = envflags.at(i);

            } else if (envflags.at(i) == quote) {

                quote = 0;

            } else if (!quote && envflags.at(i) == ' ') {

                if (currlen && env_argv && env_argv[env_argc]) {

                    env_argv[env_argc][currlen] = '\0';

                    currlen = 0;

                    env_argc++;

                }

            } else {

                if(!env_argv || env_argc > env_size) {

                    env_argv = (char **)realloc(env_argv, sizeof(char *)*(env_size+=10));

                    for(int i2 = env_argc; i2 < env_size; i2++)

                        env_argv[i2] = NULL;

                }

                if(!env_argv[env_argc]) {

                    currlen = 0;

                    env_argv[env_argc] = (char*)malloc(255);

                }

                if(currlen < 255)

                    env_argv[env_argc][currlen++] = envflags.at(i);

            }

        }

        if(env_argv) {

            if(env_argv[env_argc]) {

                env_argv[env_argc][currlen] = '\0';

                currlen = 0;

                env_argc++;

            }

            parseCommandLine(env_argc, env_argv);

            for(int i2 = 0; i2 < env_size; i2++) {

                if(env_argv[i2])

                    free(env_argv[i2]);

            }

            free(env_argv);

        }

    }

    if(argc && argv) {

        int ret = parseCommandLine(argc, argv, 1);

        if(ret != Option::QMAKE_CMDLINE_SUCCESS) {

            if ((ret & Option::QMAKE_CMDLINE_SHOW_USAGE) != 0)

                usage(argv[0]);

            return ret;

            //return ret == QMAKE_CMDLINE_SHOW_USAGE ? usage(argv[0]) : false;

        }

    }

    //last chance for defaults

    if(Option::qmake_mode == Option::QMAKE_GENERATE_MAKEFILE ||

        Option::qmake_mode == Option::QMAKE_GENERATE_PRL) {

        if(Option::mkfile::qmakespec.isNull() || Option::mkfile::qmakespec.isEmpty())

            Option::mkfile::qmakespec = QString::fromLocal8Bit(qgetenv("QMAKESPEC").constData());

        //try REALLY hard to do it for them, lazy..

        if(Option::mkfile::project_files.isEmpty()) {

            QString pwd = qmake_getpwd(),

                   proj = pwd + "/" + pwd.right(pwd.length() - (pwd.lastIndexOf('/') + 1)) + Option::pro_ext;

            if(QFile::exists(proj)) {

                Option::mkfile::project_files.append(proj);

            } else { //last try..

                QStringList profiles = QDir(pwd).entryList(QStringList("*" + Option::pro_ext));

                if(profiles.count() == 1)

                    Option::mkfile::project_files.append(pwd + "/" + profiles[0]);

            }

#ifndef QT_BUILD_QMAKE_LIBRARY

            if(Option::mkfile::project_files.isEmpty()) {

                usage(argv[0]);

                return Option::QMAKE_CMDLINE_ERROR;

            }

#endif

        }

    }

    //defaults for globals

    if(Option::target_mode == Option::TARG_WIN_MODE) {

        Option::dir_sep = "\\";

        Option::obj_ext = ".obj";

        Option::res_ext = ".res";

    } else {

        if(Option::target_mode == Option::TARG_MAC9_MODE)

            Option::dir_sep = ":";

        else

            Option::dir_sep = "/";

        Option::obj_ext = ".o";

    }

    Option::qmake_abslocation = Option::fixPathToTargetOS(Option::qmake_abslocation);

    return QMAKE_CMDLINE_SUCCESS;

}

bool Option::postProcessProject(QMakeProject *project)

{

    Option::cpp_ext = project->variables()["QMAKE_EXT_CPP"];

    if(cpp_ext.isEmpty())

        cpp_ext << ".cpp"; //something must be there

    Option::h_ext = project->variables()["QMAKE_EXT_H"];

    if(h_ext.isEmpty())

        h_ext << ".h";

    Option::c_ext = project->variables()["QMAKE_EXT_C"];

    if(c_ext.isEmpty())

        c_ext << ".c"; //something must be there

    if(!project->isEmpty("QMAKE_EXT_RES"))

        Option::res_ext = project->first("QMAKE_EXT_RES");

    if(!project->isEmpty("QMAKE_EXT_PKGCONFIG"))

        Option::pkgcfg_ext = project->first("QMAKE_EXT_PKGCONFIG");

    if(!project->isEmpty("QMAKE_EXT_LIBTOOL"))

        Option::libtool_ext = project->first("QMAKE_EXT_LIBTOOL");

    if(!project->isEmpty("QMAKE_EXT_PRL"))

        Option::prl_ext = project->first("QMAKE_EXT_PRL");

    if(!project->isEmpty("QMAKE_EXT_PRF"))

        Option::prf_ext = project->first("QMAKE_EXT_PRF");

    if(!project->isEmpty("QMAKE_EXT_JS"))

        Option::prf_ext = project->first("QMAKE_EXT_JS");

    if(!project->isEmpty("QMAKE_EXT_UI"))

        Option::ui_ext = project->first("QMAKE_EXT_UI");

    if(!project->isEmpty("QMAKE_EXT_CPP_MOC"))

        Option::cpp_moc_ext = project->first("QMAKE_EXT_CPP_MOC");

    if(!project->isEmpty("QMAKE_EXT_H_MOC"))

        Option::h_moc_ext = project->first("QMAKE_EXT_H_MOC");

    if(!project->isEmpty("QMAKE_EXT_LEX"))

        Option::lex_ext = project->first("QMAKE_EXT_LEX");

    if(!project->isEmpty("QMAKE_EXT_YACC"))

        Option::yacc_ext = project->first("QMAKE_EXT_YACC");

    if(!project->isEmpty("QMAKE_EXT_OBJ"))

        Option::obj_ext = project->first("QMAKE_EXT_OBJ");

    if(!project->isEmpty("QMAKE_H_MOD_MOC"))

        Option::h_moc_mod = project->first("QMAKE_H_MOD_MOC");

    if(!project->isEmpty("QMAKE_CPP_MOD_MOC"))

        Option::cpp_moc_mod = project->first("QMAKE_CPP_MOD_MOC");

    if(!project->isEmpty("QMAKE_MOD_LEX"))

        Option::lex_mod = project->first("QMAKE_MOD_LEX");

    if(!project->isEmpty("QMAKE_MOD_YACC"))

        Option::yacc_mod = project->first("QMAKE_MOD_YACC");

    if(!project->isEmpty("QMAKE_DIR_SEP"))

        Option::dir_sep = project->first("QMAKE_DIR_SEP");

    if(!project->isEmpty("QMAKE_DIRLIST_SEP"))

        Option::dirlist_sep = project->first("QMAKE_DIRLIST_SEP");

    if(!project->isEmpty("QMAKE_MOD_SYSTEM_ENV"))

        Option::sysenv_mod = project->first("QMAKE_MOD_SYSTEM_ENV");

    return true;

}

QString

Option::fixString(QString string, uchar flags)

{

    const QString orig_string = string;

    static QHash<FixStringCacheKey, QString> *cache = 0;

    if(!cache) {

        cache = new QHash<FixStringCacheKey, QString>;

        qmakeAddCacheClear(qmakeDeleteCacheClear_QHashFixStringCacheKeyQString, (void**)&cache);

    }

    FixStringCacheKey cacheKey(string, flags);

    if(cache->contains(cacheKey)) {

	const QString ret = cache->value(cacheKey);

	//qDebug() << "Fix (cached) " << orig_string << "->" << ret;

        return ret;

    }

    //fix the environment variables

    if(flags & Option::FixEnvVars) {

        int rep;

        QRegExp reg_var("\\$\\(.*\\)");

        reg_var.setMinimal(true);

        while((rep = reg_var.indexIn(string)) != -1)

            string.replace(rep, reg_var.matchedLength(),

                           QString::fromLocal8Bit(qgetenv(string.mid(rep + 2, reg_var.matchedLength() - 3).toLatin1().constData()).constData()));

    }

    //canonicalize it (and treat as a path)

    if(flags & Option::FixPathCanonicalize) {

#if 0

        string = QFileInfo(string).canonicalFilePath();

#endif

        string = QDir::cleanPath(string);

    }

    if(string.length() > 2 && string[0].isLetter() && string[1] == QLatin1Char(':'))

        string[0] = string[0].toLower();

    //fix separators

    Q_ASSERT(!((flags & Option::FixPathToLocalSeparators) && (flags & Option::FixPathToTargetSeparators)));

    if(flags & Option::FixPathToLocalSeparators) {

#if defined(Q_OS_WIN32)

        string = string.replace('/', '\\');

#else

        string = string.replace('\\', '/');

#endif

    } else if(flags & Option::FixPathToTargetSeparators) {

        string = string.replace('/', Option::dir_sep).replace('\\', Option::dir_sep);

    }

    if (string.startsWith("\"") && string.endsWith("\"") ||

        string.startsWith("\'") && string.endsWith("\'"))

        string = string.mid(1, string.length()-2);

    //cache

    //qDebug() << "Fix" << orig_string << "->" << string;

    cache->insert(cacheKey, string);

    return string;

}

const char *qmake_version()

{

    static char *ret = NULL;

    if(ret)

        return ret;

    ret = (char *)malloc(15);

    qmakeAddCacheClear(qmakeFreeCacheClear, (void**)&ret);

#if defined(_MSC_VER) && _MSC_VER >= 1400

    sprintf_s(ret, 15, "%d.%02d%c", QMAKE_VERSION_MAJOR, QMAKE_VERSION_MINOR, 'a' + QMAKE_VERSION_PATCH);

#else

    sprintf(ret, "%d.%02d%c", QMAKE_VERSION_MAJOR, QMAKE_VERSION_MINOR, 'a' + QMAKE_VERSION_PATCH);

#endif

    return ret;

}

void debug_msg_internal(int level, const char *fmt, ...)

{

    if(Option::debug_level < level)

        return;

    fprintf(stderr, "DEBUG %d: ", level);

    {

        va_list ap;

        va_start(ap, fmt);

        vfprintf(stderr, fmt, ap);

        va_end(ap);

    }

    fprintf(stderr, "\n");

}

void warn_msg(QMakeWarn type, const char *fmt, ...)

{

    if(!(Option::warn_level & type))

        return;

    fprintf(stderr, "WARNING: ");

    {

        va_list ap;

        va_start(ap, fmt);

        vfprintf(stderr, fmt, ap);

        va_end(ap);

    }

    fprintf(stderr, "\n");

}

class QMakeCacheClearItem {

private:

    qmakeCacheClearFunc func;

    void **data;

public:

    QMakeCacheClearItem(qmakeCacheClearFunc f, void **d) : func(f), data(d) { }

    ~QMakeCacheClearItem() {

        (*func)(*data);

        *data = 0;

    }

};

static QList<QMakeCacheClearItem*> cache_items;

void

qmakeClearCaches()

{

    qDeleteAll(cache_items);

    cache_items.clear();

}

void

qmakeAddCacheClear(qmakeCacheClearFunc func, void **data)

{

    cache_items.append(new QMakeCacheClearItem(func, data));

}

#ifdef Q_OS_WIN

# include <windows.h>

QT_USE_NAMESPACE

#endif

QString qmake_libraryInfoFile()

{

    QString ret;

#if defined( Q_OS_WIN )

    QFileInfo filePath;

    QT_WA({

        unsigned short module_name[256];

        GetModuleFileNameW(0, reinterpret_cast<wchar_t *>(module_name), sizeof(module_name));

        filePath = QString::fromUtf16(module_name);

    }, {

        char module_name[256];

        GetModuleFileNameA(0, module_name, sizeof(module_name));

        filePath = QString::fromLocal8Bit(module_name);

    });

    ret = filePath.filePath();

#else

    QString argv0 = QFile::decodeName(QByteArray(Option::application_argv0));

    QString absPath;

    if (!argv0.isEmpty() && argv0.at(0) == QLatin1Char('/')) {

        /*

          If argv0 starts with a slash, it is already an absolute

          file path.

        */

        absPath = argv0;

    } else if (argv0.contains(QLatin1Char('/'))) {

        /*

          If argv0 contains one or more slashes, it is a file path

          relative to the current directory.

        */

        absPath = QDir::current().absoluteFilePath(argv0);

    } else {

        /*

          Otherwise, the file path has to be determined using the

          PATH environment variable.

        */

        QByteArray pEnv = qgetenv("PATH");

        QDir currentDir = QDir::current();

        QStringList paths = QString::fromLocal8Bit(pEnv.constData()).split(QLatin1String(":"));

        for (QStringList::const_iterator p = paths.constBegin(); p != paths.constEnd(); ++p) {

            if ((*p).isEmpty())

                continue;

            QString candidate = currentDir.absoluteFilePath(*p + QLatin1Char('/') + argv0);

            QFileInfo candidate_fi(candidate);

            if (candidate_fi.exists() && !candidate_fi.isDir()) {

                absPath = candidate;

                break;

            }

        }

    }

    absPath = QDir::cleanPath(absPath);

    QFileInfo fi(absPath);

    ret = fi.exists() ? fi.canonicalFilePath() : QString();

#endif

    if(!ret.isEmpty())

        ret = QDir(QFileInfo(ret).absolutePath()).filePath("qt.conf");

    return ret;

}

QT_END_NAMESPACE