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find qt.conf more reliably

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a qmake invoked with a relative path would not find qt.conf, because it
already changed CWD, which would confuse our copy of
QCoreApplication::applicationFilePath() (see also QTBUG-21381).
we already have the absolute path to the qmake executable in
Option::qmake_abslocation, so just use it.

(cherry picked from commit c378e16e57e8ce2255116e7fdb5436524cccb8c7)

Change-Id: Icfe4254722e0855f6755b639f4c86f15bc7323ba
Reviewed-on: http://codereview.qt-project.org/4565
Reviewed-by: Harald Fernengel <harald.fernengel@nokia.com>
This commit is contained in:
Oswald Buddenhagen 2011-09-09 18:41:52 +02:00 committed by Qt by Nokia
parent 6f87278e0a
commit 0192bf919f
1 changed files with 3 additions and 56 deletions
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59
qmake/option.cpp
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@ -750,64 +750,11 @@ 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 )
wchar_t module_name[MAX_PATH];
GetModuleFileName(0, module_name, MAX_PATH);
QFileInfo filePath = QString::fromWCharArray(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;
if(!Option::qmake_abslocation.isEmpty())
return QDir(QFileInfo(Option::qmake_abslocation).absolutePath()).filePath("qt.conf");
return QString();
}
QT_END_NAMESPACE