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qmake: don't limit command line length when not actually on windows

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QMAKE_LINK_OBJECT_MAX is actually a property of the host, not the
target.

this works around binutil's inability to use thin LTO objects in
conjunction with an MRI script
(https://sourceware.org/bugzilla/show_bug.cgi?id=21702).

Task-number: QTBUG-61335
Change-Id: I90a1334b9c905c433b35546e8f3f3b5089d2c65b
Reviewed-by: Jake Petroules <jake.petroules@qt.io>
This commit is contained in:
Oswald Buddenhagen 2017-08-07 12:17:06 +02:00 committed by Simon Hausmann
parent d64abf8166
commit 8bebded9ab
2 changed files with 6 additions and 3 deletions
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6
mkspecs/win32-g++/qmake.conf
View File

@ -50,8 +50,10 @@ QMAKE_LFLAGS_CONSOLE = -Wl,-subsystem,console
QMAKE_LFLAGS_WINDOWS = -Wl,-subsystem,windows
QMAKE_LFLAGS_DLL = -shared
QMAKE_LFLAGS_GCSECTIONS = -Wl,--gc-sections
QMAKE_LINK_OBJECT_MAX = 10
QMAKE_LINK_OBJECT_SCRIPT = object_script
equals(QMAKE_HOST.os, Windows) {
QMAKE_LINK_OBJECT_MAX = 10
QMAKE_LINK_OBJECT_SCRIPT = object_script
}
QMAKE_PREFIX_SHLIB =
QMAKE_EXTENSION_SHLIB = dll
QMAKE_PREFIX_STATICLIB = lib

3
qmake/generators/win32/mingw_make.cpp
View File

@ -285,7 +285,8 @@ void MingwMakefileGenerator::writeLibsPart(QTextStream &t)
void MingwMakefileGenerator::writeObjectsPart(QTextStream &t)
{
if (project->values("OBJECTS").count() < var("QMAKE_LINK_OBJECT_MAX").toInt()) {
const ProString &objmax = project->first("QMAKE_LINK_OBJECT_MAX");
if (objmax.isEmpty() || project->values("OBJECTS").count() < objmax.toInt()) {
objectsLinkLine = "$(OBJECTS)";
} else if (project->isActiveConfig("staticlib") && project->first("TEMPLATE") == "lib") {
QString ar_script_file = var("QMAKE_LINK_OBJECT_SCRIPT") + "." + var("TARGET");