Commit Graph

1598 Commits

Author SHA1 Message Date
Christian Ehrlicher
7c69f6171d QFile/QFileInfo: mark readLink() as deprecated
QFile/QFileInfo::readLink() functions are obsolete but were not marked
as deprecated.
Explicit mark them as deprecated so they can be removed with Qt6.

Change-Id: I52424dc5441e1f5b01015713df990bbec5186caa
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@qt.io>
2019-01-23 18:49:15 +00:00
Qt Forward Merge Bot
c497f79ad4 Merge remote-tracking branch 'origin/5.12' into dev
Change-Id: Ieb57137ee2b7d0c505e3531d5aa1bcb66978847e
2019-01-07 01:00:08 +01:00
Oswald Buddenhagen
45e4dfb449 qmake: rewrite msvc/nmake cross-build environment setup
rather than reproducing vcvarsall.bat's functionality as hard-wired code
in the nmake generator, just invoke the actual script from
toolchain.prf. this is much easier, more future proof, and - critically
- makes the detected variables available to configure's new library &
header search facilities.

[ChangeLog][Important Behavior Changes][qmake][WinRT] Cross-builds will
now ignore pre-set values of %INCLUDE% and %LIB% when building target
executables. If necessary, use configure's -I and -L switches when
building Qt, and pass QMAKE_INCDIR and QMAKE_LIBDIR on qmake's command
line when building own projects.

Change-Id: I36f53e8880d6523f3f6f7a44d40d87d04bd06854
Reviewed-by: Thomas Miller <thomaslmiller91@gmail.com>
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2019-01-05 20:33:24 +00:00
Oswald Buddenhagen
f89ac0101a qmake: add $$read_registry() function
Change-Id: I7f9f17e0f44c273e4754d1decc92a8594cad8658
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2019-01-05 20:33:07 +00:00
Oswald Buddenhagen
fff59911a3 qmake: add QMAKE_EXPORTED_VARIABLES
because QMAKE_EXTRA_VARIABLES sometimes just ain't enough.

Change-Id: I739e5b6510e4701ca0a86834e4f9a978d7ef1cf4
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2019-01-05 20:32:56 +00:00
Liang Qi
03039979b5 Merge remote-tracking branch 'origin/5.12' into dev
Also blacklist tst_QRawFont::unsupportedWritingSystem() and
tst_QGlyphRun::mixedScripts() on windows for now.

 Conflicts:
	qmake/generators/makefile.cpp
	src/corelib/itemmodels/qstringlistmodel.cpp
	src/platformsupport/fontdatabases/windows/qwindowsfontengine_p.h
	tests/auto/corelib/itemmodels/qstringlistmodel/tst_qstringlistmodel.cpp
	tests/auto/gui/text/qglyphrun/BLACKLIST
	tests/auto/gui/text/qrawfont/BLACKLIST

Task-number: QTBUG-72836
Change-Id: I10fea1493f0ae1a5708e1e48d0a4d7d6b76258b9
2019-01-04 07:33:14 +01:00
Oliver Wolff
f9d8762d37 winrt: Remove yet another Windows Phone leftover
Hardware and camera button handling are phone specific APIs we no longer
support in Qt.

Change-Id: Ib11f894a426b8e4b71acf24876437ddab2cea548
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
Reviewed-by: Andre de la Rocha <andre.rocha@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
2019-01-02 23:32:34 +00:00
Oswald Buddenhagen
3f2786e322 qmake: fixify target paths of extra compilers more consistently
... so we don't get into situations where a target has a relative path,
while another target depends on it with an absolute path.

Task-number: QTBUG-36768
Change-Id: Icc5b249914bb3f095f4a6542c30bacf5ea6f9ec9
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
2018-12-20 21:01:07 +00:00
Andy Shaw
f377b1ddfb qmake: Add support for installing executable files without calling strip
Since some files are still executable (such as bash scripts) then they
should not get strip called on them when installing in those cases.
So by adding .CONFIG = nostrip, it indicates that strip should not be
called on this.

Fixes: QTBUG-60751
Change-Id: I19d502c07644daf9d487a8817c8e57d96eedab60
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
2018-12-20 15:03:10 +00:00
Oswald Buddenhagen
91d98321d3 qmake: move QT_BEGIN_NAMESPACE to correct place
this makes no difference whatsoever, because qmake isn't actually built
in a namespace, but it makes the new qtc code model happy.

Change-Id: I70ad8e16cceff73276a821219fc80bab365954b5
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2018-12-19 19:21:35 +00:00
Qt Forward Merge Bot
4b04e47be9 Merge remote-tracking branch 'origin/5.12' into dev
Change-Id: Iad06d8c07dfc288c9d1a9f7ee3520285cea60546
2018-12-15 01:00:31 +01:00
Oswald Buddenhagen
9d76beee5b qmake: don't mess up linking order of libraries
... which are specified by full filepath, by making the de-duplication
consistent with that applied to libs specified with -l, that is, last
one wins.

the problem existed "forever", but it became more visible after the
recent configure changes.

fwiw, Win32MakefileGenerator is not affected, because it has the
opposite problem: it de-duplicates everything (including object files)
in "last one wins mode". it might make sense to change that as well.

Change-Id: Id7ef1d394fcc9d444450672c06a6f11af2b19eab
Reviewed-by: Robert Griebl <robert.griebl@pelagicore.com>
2018-12-14 17:20:11 +00:00
Qt Forward Merge Bot
ad4f359f80 Merge remote-tracking branch 'origin/5.12' into dev
Change-Id: I0fe623517af28e408b642c879efd59f633ab63ac
2018-12-13 01:00:11 +01:00
Nico Vertriest
4e54ac7c89 Doc: correct syntax error in qmake manual
Change-Id: I600f8c9ea8e55dad19345bd4d726cf8d5438e9ce
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
2018-12-12 17:24:54 +00:00
Qt Forward Merge Bot
a2fd99c430 Merge remote-tracking branch 'origin/5.12' into dev
Change-Id: I91e684e74c36467efda8ded6ed19791baa0c1a1f
2018-12-11 01:00:13 +01:00
Joerg Bornemann
6a221f3d05 Fix qmake's detection for conflicting source files for nmake
Consider the following source tree:
  foo/narf.cpp
  bar/narf.c
  bar/gnampf.cpp

The .pro file has
  SOURCES += foo/narf.cpp bar/gnampf.cpp
The file bar/narf.c is not supposed to be built for whatever reason.

QMake's nmake Makefile generator generates inference rules of the form

  {.\foo}.cpp{debug\}.obj::
  ...

for every source subdirectory and every source file extension.
Thus, we have

  {.\foo}.cpp{debug\}.obj::
  {.\bar}.cpp{debug\}.obj::
  {.\bar}.c{debug\}.obj::

Depending on the exact execution order of the inference rules (which
depends on the names of the files) the latter rule might get picked,
and we're erronously compiling bar/narf.c even though it's not
referenced in the .pro file.

Conclusion: QMake's detection of conflicting source files must
consider the base names of source files, and not the exact file names.

Fixes: QTBUG-72059
Change-Id: I50c2725ae2a7421053369a10680230f571af00ea
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
2018-12-10 06:46:15 +00:00
Liang Qi
5d5c00c676 Merge remote-tracking branch 'origin/5.12' into dev
Conflicts:
	src/gui/painting/qdrawhelper.cpp

Change-Id: I4916e07b635e1d3830e9b46ef7914f99bec3098e
2018-12-04 09:58:43 +01:00
Ulf Hermann
5ed471a80a qmake: Escape '=' in dependency paths for unix make
'=' cannot be handled in the same manner as other "critical" characters
as no amount of backslashes will escape it. Use a variable instead.

The documentation for nmake suggests that '=' in file names is not among
the "Special Characters in a Makefile". Therefore, we assume nmake can
handle it and don't escape it.

Fixes: QTBUG-67262
Change-Id: Ib60f808d7d4e981c98f7d8bf2075d55b2b7f3b7d
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Michael Brasser <michael.brasser@live.com>
2018-11-30 14:47:42 +00:00
Allan Sandfeld Jensen
1f998e040e Fix crash in qmake parsing
The read from a QHash needs to be protected too if other threads are
writing.

sync-up with qtc, no actual effect on qmake itself.

Fixes: QTCREATORBUG-21416
Change-Id: I75e5634e11b10056d6dbb6fdceef482ca2222ca1
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
(cherry picked from qtcreator/5f79b5d2e5e33321cdcd00362f0d6d9442a73ec2)
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
2018-11-29 07:46:02 +00:00
Lars Knoll
b98c43ea60 Compile with QT_STRICT_ITERATORS defined
This will be the only options for Qt 6, so make sure the code compiles now.

Change-Id: I23f791d1efcbd0bd33805bb4563d40460954db43
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
2018-11-26 07:04:24 +00:00
Joerg Bornemann
e04aaf188c Support 'CONFIG += precompile_header_c' in VS projects
The CONFIG value precompile_header_c was ignored in the VS project
generator. Add a member VcprojGenerator::pchIsCFile that is set to
true if precompile_header_c is active.
The code in modifyPCHstage had to be rearranged to separate the three
parts for stable.h, stable.cpp and other files.

Task-number: QTBUG-62821
Change-Id: I340eb165baa22cafcb64815cf223ce9a21aca558
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2018-11-24 20:12:16 +00:00
Joerg Bornemann
e5f94f0f05 Simplify VCFilter::modifyPCHstage a bit
Merge two nested if blocks.
This reduces the diff size for a subsequent commit.

Change-Id: If60938077169fc6686329cc5c30ebc97ada013a1
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2018-11-24 20:12:10 +00:00
Joerg Bornemann
54fc1b5ae6 Remove variable autogenSourceFile from VCFilter::modifyPCHstage
There's no point in having it, and this will reduce the diff of a
subsequent commit.

Change-Id: I3d27d6808c585b87a44df2499f2fcea4331befbb
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2018-11-24 20:12:05 +00:00
Joerg Bornemann
e824136a3b Rename VcProjGenerator::[autogen]precompCPP to [autogen]precompSource
Those names are a better fit as we want to support C precompiled
headers in a subsequent commit.

Change-Id: Ie3f852da945b9b2cf0e363c81f1a4b3063f27372
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2018-11-24 20:12:01 +00:00
Liang Qi
bf58c70546 Merge remote-tracking branch 'origin/5.12' into dev
Conflicts:
	src/corelib/io/qdir.cpp
	src/corelib/kernel/qtimer.cpp
	src/corelib/kernel/qtimer.h

Done-With: Edward Welbourne <edward.welbourne@qt.io>
Change-Id: I683d897760ec06593136d77955f8bc87fdef3f9f
2018-11-22 01:53:29 +01:00
Oswald Buddenhagen
127005d360 qmake: fix return type of toLongLong()
Fixes: QTBUG-71886
Change-Id: I62880e7ad8a1707c9094b07cf89d5c0c7841d235
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2018-11-21 05:37:02 +00:00
Joerg Bornemann
6e34552638 Enable users to specify WindowsTargetPlatform[Min]Version in VS projects
[ChangeLog][qmake] Introduced the variables
WINDOWS_TARGET_PLATFORM_VERSION and
WINDOWS_TARGET_PLATFORM_MIN_VERSION for overriding the default values
of WindowsTargetPlatformVersion and WindowsTargetPlatformMinVersion in
Visual Studio project files.

The code to determine the default values is moved to qmake feature
files. A common/windows-desktop.conf file is introduced for variables
common to all non-UWP Windows mkspecs.

The package_manifest feature uses WINDOWS_TARGET_PLATFORM_VERSION as
default value for WINRT_MANIFEST.minVersion, and
WINDOWS_TARGET_PLATFORM_MIN_VERSION for
WINRT_MANIFEST.maxVersionTested respectively.

Task-number: QTBUG-53654
Change-Id: I251ec7f9b804c9bc9f7d571f5b43d52b2a2d99d3
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2018-11-16 10:55:16 +00:00
Liang Qi
37d3bc9ad7 Merge remote-tracking branch 'origin/5.12.0' into 5.12
Change-Id: Ic1dd39044e19f50e1068d4ac70dacaad6440e570
2018-11-16 08:10:15 +01:00
Oliver Wolff
299734c3ee Revert "Revert "qmake: Work around MSVC compiler bug.""
The assert still happens on MSVC 2015 64 bit when running
qmake -tp vc -r.

This reverts commit f4169a633b.

Fixes: QTBUG-71228
Change-Id: I05bd3e0677414edb970f07e0555cdc95ce32f592
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
(cherry picked from commit 4be8168ff7)
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2018-11-14 07:15:11 +00:00
Qt Forward Merge Bot
0441d959ff Merge remote-tracking branch 'origin/5.12' into dev
Change-Id: I5dbdc13c6133e5b03e362c5461b4a599d781bd1e
2018-11-13 01:00:13 +01:00
Thomas Miller
fbbe8aba9d Add Windows Desktop arm64 target to Qtbase
Allows a qt build to be configured to target arm64 desktop apps cross
platform and build them with nmake.

Change-Id: I99fed12047b45a504a1644201bcc19b18c69f3e6
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2018-11-11 09:05:10 +00:00
Liang Qi
58437fb125 Merge remote-tracking branch 'origin/5.12' into dev
Conflicts:
	src/corelib/serialization/qcborcommon.h
	src/corelib/tools/qlocale_data_p.h
	tests/auto/network/ssl/qsslsocket/tst_qsslsocket.cpp

Done-with: Edward Welbourne <edward.welbourne@qt.io>
Change-Id: Ibed987f6d77a0294f78f67d78625237616082416
2018-11-10 11:38:40 +01:00
Oliver Wolff
4be8168ff7 Revert "Revert "qmake: Work around MSVC compiler bug.""
The assert still happens on MSVC 2015 64 bit when running
qmake -tp vc -r.

This reverts commit f4169a633b.

Fixes: QTBUG-71228
Change-Id: I05bd3e0677414edb970f07e0555cdc95ce32f592
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2018-11-09 21:43:30 +00:00
Liang Qi
bc07958f92 Merge remote-tracking branch 'origin/5.11' into 5.12
Conflicts:
	.qmake.conf
	qmake/Makefile.unix
	src/gui/text/qtextdocument.cpp
	src/gui/text/qtextdocument.h

Change-Id: Iba26da0ecbf2aa4ff4b956391cfb373f977f88c9
2018-11-09 10:34:33 +01:00
Liang Qi
825f988156 Modernize the "textcodec" feature
Also clean up QTextCodec usage in qmake build and some includes
of qtextcodec.h.

Change-Id: I0475b82690024054add4e85a8724c8ea3adcf62a
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
2018-11-07 13:19:54 +00:00
Oswald Buddenhagen
1dd6433b19 qmake: fix .prl file generation for bundles
amends 2b27646146a.

Fixes: QTBUG-70444
Change-Id: I8bd310f5624ea0ac9260c7d9ea0d29b0c9caa077
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2018-11-07 10:32:52 +00:00
Paul Wicking
afba8fcc49 Doc: Add description for mode argument of qmake's $$system()
Fixes: QTBUG-70926
Change-Id: Icfd13352cd64053c11502058188041ad16f6c287
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
2018-11-02 12:40:59 +00:00
Frederik Gladhorn
102a919b73 Generate documentation .tags files for all of the docs
This allows others to link to QtDBus and the other libraries/tools using
doxygen.

Fixes: QTBUG-60933
Change-Id: I026895a432a328f224c40cf231ad12d109dc648f
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Reviewed-by: Venugopal Shivashankar <Venugopal.Shivashankar@qt.io>
Reviewed-by: Martin Smith <martin.smith@qt.io>
2018-10-31 08:38:02 +00:00
Kai Koehne
4522468716 qmake: Add support for CONFIG += c++17
The correct name is c++1z. Anyhow, this is easy enough to get wrong,
so make sure CONFIG += c++17 works as well.

Task-number: QTBUG-67527
Change-Id: Iea26b18824b38b1b5170f85987cf5c750b8e10ab
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: André Hartmann <aha_1980@gmx.de>
2018-10-15 06:47:42 +00:00
Oswald Buddenhagen
473d9a5fc7 qmake: fix the precedence of QMAKE_LIBDIR_POST
it must end up in front of QMAKE_LIBS{,_PRIVATE}, but not of
LIBS{,_PRIVATE} (which are preceded by QMAKE_LIBDIR).

Task-number: QTBUG-61982
Started-by: Liang Qi <liang.qi@qt.io>
Change-Id: Id3de01ee0e9b66af02f79949aeb5a0eabd55363f
Reviewed-by: Liang Qi <liang.qi@qt.io>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2018-10-12 18:06:49 +00:00
Oswald Buddenhagen
342b13944c qmake: document {,QMAKE_}LIBS_PRIVATE
Change-Id: I6637d5f57d372f63b3cfaeb28c7e48c940887db6
Reviewed-by: Liang Qi <liang.qi@qt.io>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2018-10-12 18:06:43 +00:00
Oswald Buddenhagen
405c73e495 qmake: make sure QMAKE_LIBS{,_PRIVATE} comes after LIBS{,_PRIVATE}
the early merging of LIBS* into QMAKE_LIBS* meant that we could not
interleave them properly. defer the merging until the points of use.

Task-number: QTBUG-70779
Started-by: BogDan Vatra <bogdan@kdab.com>
Change-Id: I890f98016c3721396a1f0f6f149a9e2b37d56d8e
Reviewed-by: Liang Qi <liang.qi@qt.io>
2018-10-12 18:06:33 +00:00
Oswald Buddenhagen
2a3695b7e0 qmake: nuke QMAKE_INTERNAL_PRL_LIBS
it's unused now, and just complicates matters. its interaction with
LIBS_PRIVATE & co. has always been a bit shaky. google produces no
public hits outside qt itself, so let's assume it really remained
internal.

Change-Id: I6606bbabd44f1b76d84e97219e155e38d6f1b3a6
Reviewed-by: Liang Qi <liang.qi@qt.io>
Reviewed-by: BogDan Vatra <bogdan@kdab.com>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2018-10-12 18:06:21 +00:00
Oswald Buddenhagen
d30de09000 qmake: remove support for static archive splitting
this was introduced in 2002 supposedly for qnx4, but doesn't appear to
have actually been used ever. remove it, as it's in the way now.

Change-Id: I54dcabb61e1d3609a1e7a9fa4ff4b25509cfdb7a
Reviewed-by: Liang Qi <liang.qi@qt.io>
Reviewed-by: BogDan Vatra <bogdan@kdab.com>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2018-10-12 18:06:15 +00:00
Martin Storsjö
d92c25b1b4 qmake: Fix building with lld with mingw makefiles
lld for coff/mingw doesn't support linker scripts, which qmake used
for passing larger numbers of input file names to the linker.

Instead of using a fullblown linker script for this, just use a plain
response file, which both lld and binutils ld support.

Change-Id: I3aace7902fa6ca861a0a9fe67feaa236e7ea417b
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
2018-10-12 14:01:59 +00:00
Qt Forward Merge Bot
07e9261105 Merge remote-tracking branch 'origin/5.11' into 5.12
Change-Id: Iaa438d14357be1bf75bb645cb8d3245947c055b8
2018-09-30 01:00:19 +02:00
Andrew Patterson
857a0d4c51 Fix the /J option for MSVC project generation
Remove the DefaultCharIsUnsigned member and XML property because the
MSVC project file no longer has a specific XML tag for that setting;
instead, the /J option should go directly into the AdditionalOptions
tag.

Task-number: QTBUG-69611
Change-Id: I8f386427b7384ae09553f66193a2c9ea2b98dbc8
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2018-09-27 11:22:40 +00:00
Friedemann Kleint
f4169a633b Revert "qmake: Work around MSVC compiler bug."
The fix was for MSVC2010 which is now no longer supported
and causes a warning:

msvc_vcproj.cpp(217,12):  warning: unknown pragma ignored [-Wunknown-pragmas]
 #pragma optimize( "g", off )

by clang-cl.

This reverts commit 9f54846d95.

Task-number: QTBUG-63512
Change-Id: I395b964d09ac04a7dc852e43d7d95669948eea52
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Miguel Costa <miguel.costa@qt.io>
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
2018-09-26 05:41:08 +00:00
Oswald Buddenhagen
999d4d5777 qmake: rework .prl filename construction
instead of trying to reverse-engineer it from the final target including
extension and possible bundle path, construct the basename explicitly.
this avoids that we mangle the filename if the actual target contains a
period for some reason.

Task-number: QTBUG-70097
Change-Id: I0bae9f010ab82e258680830250f8e28656f09d67
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2018-08-30 05:30:17 +00:00
Oswald Buddenhagen
f12fd482f5 qmake: fix file id mapping lifetime management
turns out that flushing the ids together with the ProFile cache was an
abysmal idea, as the latter expires after a few seconds after loading
the project, while references to the ProFiles (and thus the underlying
file ids) are kept for as long as the project stays loaded. the early
flush would cause re-use of the file ids, which would wreak all kinds of
havoc when re-loading projects.

but just ref-counting the vfs class is insufficient as well, as then the
ProFile cache (which expires after a timeout) could outlive all VFS
instances and thus refer to ids which were discarded and later re-used.

so we ref-count, and additionally let the cache instance hold a
reference to the vfs class.

this is sync-up with qt creator; no actual effect on qmake itself.

amends 190aa94be.

Change-Id: Idd4478ffc1c2405b3b83df32fba45b1f687f6a18
Reviewed-by: Robert Loehning <robert.loehning@qt.io>
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
(cherry picked from qtcreator/d03fb350672d311dccc06f0bcb4da744a3c99745)
(cherry picked from qtcreator/1ddfb443b686ef04cc0e28363308ce70d01f0d73)
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
2018-08-24 12:16:37 +00:00