Loading...

XML

Word

Printable

Details

Type: Bug
Resolution: Invalid
Priority: Not Evaluated
Fix Version/s: None
Affects Version/s: 1.14.0
Component/s: Languages: C/C++/Objective-C, Platforms: Linux/UNIX
Labels:
None
Environment:
Ubuntu 18.04.3 64-bit

Description

This file

lib.qbs

import qbs
import qbs.Environment
import qbs.FileInfo

import "images/isle-images.qbs" as IsleImages
import "js/isle-js.qbs" as IsleJs
import "qml/isle-qml.qbs" as IsleQml

Product {
    id: root
    targetName: "isle"
    type: Qt.core.staticBuild ? "staticlibrary" : "dynamiclibrary"

    Depends { name: "cpp" }
    Depends { name: "Qt"; submodules: ["core", "gui", "quick", "widgets"]; versionAtLeast: "5.12" }
    // For version info.
    Depends { name: "vcs" }
    Depends { name: "bundle" }
    Depends { name: "libtiled" }

    readonly property bool linux: qbs.targetOS.contains("linux")

    readonly property string tiledIncludeDir: FileInfo.cleanPath(sourceDirectory + "/../3rdparty/tiled/src")
    readonly property string fmodRootDir: Environment.getEnv("FMOD_DIR")
    readonly property string fmodIncludeDir: fmodRootDir + "/api/lowlevel/inc"
    readonly property string fmodLibDir: fmodRootDir + "/api/lowlevel/lib" + (linux ? "/x86_64" : "")

    cpp.cxxLanguageVersion: "c++11"
    cpp.includePaths: [
        FileInfo.cleanPath(product.sourceDirectory + "/../3rdparty/tiled/src"),
        fmodIncludeDir
    ]
    // https://bugreports.qt.io/browse/QBS-1434
    cpp.minimumMacosVersion: "10.7"
    cpp.visibility: "minimal"
    cpp.defines: [
        "ISLE_LIBRARY"
    ]
    cpp.linkerFlags: [
        "-L" + fmodLibDir, "-lfmod"
    ]
    cpp.rpaths: [
        fmodLibDir
    ]

    bundle.isBundle: false
    cpp.sonamePrefix: qbs.targetOS.contains("darwin") ? "@rpath" : undefined

    Export {
        Depends { name: "cpp" }
        Depends {
            name: "Qt"
            submodules: ["core", "gui", "quick", "widgets"]
        }
        Depends { name: "libtiled" }

        cpp.includePaths: [
            product.sourceDirectory,
            root.tiledIncludeDir,
            root.fmodIncludeDir
        ]
        cpp.linkerFlags: root.cpp.linkerFlags
        cpp.rpaths: root.cpp.rpaths
    }

    Group {
        qbs.install: true
        qbs.installDir: {
            if (qbs.targetOS.contains("windows"))
                return ""
            else if (qbs.targetOS.contains("darwin"))
                return "tshnm-iso.app/Contents/Frameworks"
        }
        fileTagsFilter: "dynamiclibrary"
    }

    IsleImages {}
    IsleJs {}
    IsleQml {}

    files: [
        // ...
    ]
}

results in this linker command when building the application that uses the library

/usr/bin/g++ '-Wl,-m,elf_x86_64,-rpath,$ORIGIN/lib,-rpath,/home/mitch/dev/qt5.13-debug/qtbase/lib,-rpath,/home/mitch/dev/FMOD/api/lowlevel/lib/x86_64,-rpath,/home/mitch/dev/qt5.13-debug/qtbase/lib,-L/home/mitch/dev/FMOD/api/lowlevel/lib/x86_64,-lfmod' -L/home/mitch/dev/qt5.13-debug/qtbase/lib -m64 -o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/tshnm-iso /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/TshnmApplication.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/main.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_audio.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_gui.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_levels.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_qtquickcontrols2.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_scripts.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_sprites.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_tiles.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_tshnm-iso.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/73489b871e127538/moc_TshnmApplication.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Widgets.so.5.13.2 /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Quick.so.5.13.2 /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Qml.so.5.13.2 /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Network.so.5.13.2 /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/libtiled.080f31f8/libtiled.so /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Gui.so.5.13.2 /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Core.so.5.13.2 -lpthread /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Core.so /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Network.so /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Gui.so /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Qml.so /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Gui.so

which results in these error messages

14:55:02: Running steps for project tshnm-iso...
linking tshnm-iso [app]
/usr/bin/g++ '-Wl,-m,elf_x86_64,-rpath,$ORIGIN/lib,-rpath,/home/mitch/dev/qt5.13-debug/qtbase/lib,-rpath,/home/mitch/dev/FMOD/api/lowlevel/lib/x86_64,-rpath,/home/mitch/dev/qt5.13-debug/qtbase/lib,-L/home/mitch/dev/FMOD/api/lowlevel/lib/x86_64,-lfmod' -L/home/mitch/dev/qt5.13-debug/qtbase/lib -m64 -o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/tshnm-iso /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/TshnmApplication.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/main.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_audio.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_gui.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_levels.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_qtquickcontrols2.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_scripts.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_sprites.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_tiles.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_tshnm-iso.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/73489b871e127538/moc_TshnmApplication.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Widgets.so.5.13.2 /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Quick.so.5.13.2 /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Qml.so.5.13.2 /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Network.so.5.13.2 /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/libtiled.080f31f8/libtiled.so /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Gui.so.5.13.2 /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Core.so.5.13.2 -lpthread /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Core.so /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Network.so /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Gui.so /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Qml.so /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Gui.so
//usr/lib/x86_64-linux-gnu/libasan.so.4: warning: the use of `tmpnam' is dangerous, better use `mkstemp'
//usr/lib/x86_64-linux-gnu/libasan.so.4: warning: the use of `tempnam' is dangerous, better use `mkstemp'
//usr/lib/x86_64-linux-gnu/libasan.so.4: warning: the use of `tmpnam_r' is dangerous, better use `mkstemp'
/home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so: undefined reference to `FMOD::Sound::getLength(unsigned int*, unsigned int)'
/home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so: undefined reference to `FMOD::ChannelControl::stop()'
/home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so: undefined reference to `FMOD::System::update()'
/home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so: undefined reference to `FMOD::ChannelControl::setCallback(FMOD_RESULT (*)(FMOD_CHANNELCONTROL*, FMOD_CHANNELCONTROL_TYPE, FMOD_CHANNELCONTROL_CALLBACK_TYPE, void*, void*))'
/home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so: undefined reference to `FMOD::Sound::setLoopCount(int)'
/home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so: undefined reference to `FMOD::System::createChannelGroup(char const*, FMOD::ChannelGroup**)'
/home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so: undefined reference to `FMOD::Channel::setChannelGroup(FMOD::ChannelGroup*)'
/home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so: undefined reference to `FMOD::System::createSound(char const*, unsigned int, FMOD_CREATESOUNDEXINFO*, FMOD::Sound**)'
/home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so: undefined reference to `FMOD::System::playSound(FMOD::Sound*, FMOD::ChannelGroup*, bool, FMOD::Channel**)'
/home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so: undefined reference to `FMOD::ChannelGroup::release()'
/home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so: undefined reference to `FMOD_System_Create'
/home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so: undefined reference to `FMOD::Channel::getCurrentSound(FMOD::Sound**)'
/home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so: undefined reference to `FMOD::System::init(int, unsigned int, void*)'
/home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so: undefined reference to `FMOD::ChannelControl::setPaused(bool)'
/home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so: undefined reference to `FMOD::ChannelControl::setVolume(float)'
/home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so: undefined reference to `FMOD::ChannelControl::setUserData(void*)'
/home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so: undefined reference to `FMOD::System::release()'
/home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so: undefined reference to `FMOD::ChannelControl::getUserData(void**)'
/home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so: undefined reference to `FMOD::Channel::getPosition(unsigned int*, unsigned int)'
/home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so: undefined reference to `FMOD::Sound::release()'
collect2: error: ld returned 1 exit status
Process failed with exit code 1.
The following products could not be built for configuration Debug:
app
Error while building/deploying project tshnm-iso (kit: qt5.13-debug)
When executing step "Qbs Build"
14:55:03: Elapsed time: 00:01.

After a bit of searching, I found this answer:

https://stackoverflow.com/a/30559538

I tried it out on the command line by moving the -Wl arguments to the end of the command, and it linked fine after that:

/usr/bin/g++ -L/home/mitch/dev/qt5.13-debug/qtbase/lib -m64 -o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/tshnm-iso /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/TshnmApplication.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/main.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_audio.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_gui.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_levels.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_qtquickcontrols2.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_scripts.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_sprites.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_tiles.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/3a52ce780950d4d9/qrc_tshnm-iso.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/app.7d104347/73489b871e127538/moc_TshnmApplication.cpp.o /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/lib.9d062baf/libisle.so /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Widgets.so.5.13.2 /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Quick.so.5.13.2 /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Qml.so.5.13.2 /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Network.so.5.13.2 /home/mitch/dev/tshnm-iso-qbs-qt5_13_debug-Debug/Debug/libtiled.080f31f8/libtiled.so /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Gui.so.5.13.2 /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Core.so.5.13.2 -lpthread /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Core.so /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Network.so /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Gui.so /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Qml.so /home/mitch/dev/qt5.13-debug/qtbase/lib/libQt5Gui.so '-Wl,-m,elf_x86_64,-rpath,$ORIGIN/lib,-rpath,/home/mitch/dev/qt5.13-debug/qtbase/lib,-rpath,/home/mitch/dev/FMOD/api/lowlevel/lib/x86_64,-rpath,/home/mitch/dev/qt5.13-debug/qtbase/lib,-L/home/mitch/dev/FMOD/api/lowlevel/lib/x86_64,-lfmod'

The answer that that answer links to also says:

Linking to dynamic libraries
$ export LD_LIBRARY_PATH=. # not needed if libs go to /usr/lib etc
$ g++ -fpic -shared d.cpp -o libd.so
$ g++ -fpic -shared b.cpp -L. -ld -o libb.so # specifies its dependency!

$ g++ -L. -lb a.cpp # wrong order (works on some distributions)
$ g++ -Wl,--as-needed -L. -lb a.cpp # wrong order
$ g++ -Wl,--as-needed a.cpp -L. -lb # right order
It's the same here - the libraries must follow the object files of the program. The difference here compared with static libraries is that you need not care about the dependencies of the libraries against each other, because dynamic libraries sort out their dependencies themselves.

Some recent distributions apparently default to using the --as-needed linker flag, which enforces that the program's object files come before the dynamic libraries. If that flag is passed, the linker will not link to libraries that are not actually needed by the executable (and it detects this from left to right). My recent archlinux distribution doesn't use this flag by default, so it didn't give an error for not following the correct order.

If the --as-needed flag would have given an error here, it sounds like it's worth having, though I'm not sure how to use it.

Attachments

Gerrit Reviews

- Issue Only
- Show All Reviews
- Show Open Reviews
- Show All Issues
- Show Open Issues

No reviews matched the request. Check your Options in the drop-down menu of this sections header.

Activity

People

Assignee:: Christian Kandeler

Reporter:: Mitch Curtis

Votes:: 0 Vote for this issue

Watchers:: 2 Start watching this issue

Dates

Created:: 22 Nov '19 14:13

Updated:: 22 Nov '19 16:00

Resolved:: 22 Nov '19 14:18

Gerrit Reviews

There are no open Gerrit changes

Show There is 1 closed Gerrit change

Hide There is 1 closed Gerrit change

Improve libraryPaths and dynamicLibraries documentation: Gerrit Review: