Details
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Bug
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Resolution: Done
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P3: Somewhat important
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None
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5.8.0
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Qt 5.8.0, Qt 5.7.1, QtWebkit 5.8.0 Windows 7, MinGW-w64 5.0.1, GCC 6.3.0
Description
Long story short, about QTBUG-58357, when I move all QtWebkit 5.8.0 to Qt branch 5.7.1, QtWebkit build successfully.
and when I compare qmake 5.8.0 and 5.7.1 I find the different is at $\qtbase\qmake\generators\win32\mingw_make.cpp
void MingwMakefileGenerator::writeBuildRulesPart(QTextStream &t)
{
t << "first: all\n";
t << "all: " << escapeDependencyPath(fileFixify(Option::output.fileName()))
<< ' ' << depVar("ALL_DEPS") << " $(DESTDIR_TARGET)\n\n";
t << "$(DESTDIR_TARGET): " << depVar("PRE_TARGETDEPS") << " $(OBJECTS) " << depVar("POST_TARGETDEPS");
if (project->first("TEMPLATE") == "aux") {
t << "\n\n";
return;
}
if(!project->isEmpty("QMAKE_PRE_LINK"))
t << "\n\t" <<var("QMAKE_PRE_LINK");
if(project->isActiveConfig("staticlib") && project->first("TEMPLATE") == "lib") {
if (project->values("OBJECTS").count() < var("QMAKE_LINK_OBJECT_MAX").toInt()) {
t << "\n\t$(LIB) $(DESTDIR_TARGET) " << objectsLinkLine << " " ;
} else {
t << "\n\t" << objectsLinkLine << " " ;
}
} else {
t << "\n\t$(LINKER) $(LFLAGS) " << var("QMAKE_LINK_O_FLAG") << "$(DESTDIR_TARGET) " << objectsLinkLine << " $(LIBS)";
}
if(!project->isEmpty("QMAKE_POST_LINK"))
t << "\n\t" <<var("QMAKE_POST_LINK");
t << endl;
}
when TEMPLATE contains aux, it will return immediately. but for QtWebkit WebCore module, they have TEMPLATE = derived
$\qtwebkit\Source\WebCore\DerivedSources.pri
which will explain as TEMPLATE = aux by
$\qtwebkit\Tools\qmake\mkspecs\features\default_post.prf
and modules in WebCore is configure as staticlib and lots lots of object files linked ( total command line length over 20k) so the issue happen.
I even do not know this is a qtwebkit bug or qmake bug, but Qt 5.7.1 + QtWebkit 5.8.0 works.
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Issue Links
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- Closed
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