Qt Project fail to build on Travis CI - "error: ISO C++ forbids declaration of ..."

[alex1a]

I'm working on a Qt desktop application and everything is building under Arch, using CMake 3.10.2, Make 4.2.1, Qt 5.10.1.

When i try to build on travis i'm getting some dependency errors. Any suggestion ?

Here's the travis config:

{
  "language": "cpp",
  "addons": {
    "apt": {
      "sources": [
        "ubuntu-sdk-team"
      ],
      "packages": [
        "qtbase5-dev",
        "qt5-default",
        "qt5-qmake",
        "qttools5-dev-tools",
        "qtbase5-dev-tools",
        "qtdeclarative5-dev",
        "libsqlite3-dev"
      ]
    }
  },
  "before_script": [
    "if [ $TRAVIS_OS_NAME = osx ]; then brew update; brew install qt5; brew link qt5 --force; fi"
  ],
  "script": [
    "cmake .",
    "make -j8"
  ],
  "os": "linux",
  "group": "stable",
  "dist": "trusty",
  "compiler": "gcc",
  "sudo": "required"
}

Travis error log:

The command "cmake ." exited with 0.
8.40s$ make -j8
[  1%] Generating include/dedicatedslave/data/moc_data.cpp
[  3%] Generating include/dedicatedslave/logic/moc_processmanager.cpp
[  5%] Generating include/dedicatedslave/data/moc_dbmanager.cpp
[  7%] Generating include/dedicatedslave/data/moc_models.cpp
[  9%] Generating include/dedicatedslave/moc_dedicatedslavelib.cpp
[ 11%] Generating include/dedicatedslave/moc_dedicatedslavelib_global.cpp
[ 12%] Generating include/dedicatedslave/logic/moc_app.cpp
[ 14%] Generating include/dedicatedslave/logic/moc_appsteamapi.cpp
/home/travis/build/EnthDev/dedicatedslave/include/dedicatedslave/dedicatedslavelib.h:0: Note: No relevant classes found. No output generated.
/home/travis/build/EnthDev/dedicatedslave/include/dedicatedslave/dedicatedslavelib_global.h:0: Note: No relevant classes found. No output generated.
[ 16%] Generating include/dedicatedslave/logic/moc_config.cpp
[ 18%] Generating include/dedicatedslave/logic/moc_helperio.cpp
[ 20%] Generating include/dedicatedslave/logic/moc_helpersys.cpp
/home/travis/build/EnthDev/dedicatedslave/include/dedicatedslave/data/dbmanager.h:0: Note: No relevant classes found. No output generated.
/home/travis/build/EnthDev/dedicatedslave/include/dedicatedslave/data/models.h:0: Note: No relevant classes found. No output generated.
Scanning dependencies of target dedicatedslave-lib
[ 22%] Building CXX object CMakeFiles/dedicatedslave-lib.dir/src/dedicatedslavelib.cpp.o
[ 24%] Building CXX object CMakeFiles/dedicatedslave-lib.dir/src/logic/app.cpp.o
[ 25%] Building CXX object CMakeFiles/dedicatedslave-lib.dir/src/logic/appsteamapi.cpp.o
[ 27%] Building CXX object CMakeFiles/dedicatedslave-lib.dir/src/logic/helperio.cpp.o
[ 29%] Building CXX object CMakeFiles/dedicatedslave-lib.dir/src/logic/helpersys.cpp.o
[ 31%] Building CXX object CMakeFiles/dedicatedslave-lib.dir/src/logic/config.cpp.o
[ 33%] Building CXX object CMakeFiles/dedicatedslave-lib.dir/src/logic/processmanager.cpp.o
[ 35%] Building CXX object CMakeFiles/dedicatedslave-lib.dir/src/data/data.cpp.o
[ 37%] Building CXX object CMakeFiles/dedicatedslave-lib.dir/src/data/dbmanager.cpp.o
In file included from /home/travis/build/EnthDev/dedicatedslave/src/data/data.cpp:1:0:
/home/travis/build/EnthDev/dedicatedslave/include/dedicatedslave/data/data.h:24:27: error: ISO C++ forbids declaration of ‘Q_ENUM’ with no type [-fpermissive]
     Q_ENUM (InstancesTypes);
                           ^
/home/travis/build/EnthDev/dedicatedslave/src/logic/helpersys.cpp: In static member function ‘static void DedicatedSlave::HelperSys::getInfo()’:
/home/travis/build/EnthDev/dedicatedslave/src/logic/helpersys.cpp:8:54: error: ‘currentCpuArchitecture’ is not a member of ‘QSysInfo’
         qDebug() << "\tcurrentCpuArchitecture():" << QSysInfo::currentCpuArchitecture();
                                                      ^
/home/travis/build/EnthDev/dedicatedslave/src/logic/helpersys.cpp:9:43: error: ‘productType’ is not a member of ‘QSysInfo’
         qDebug() << "\tproductType():" << QSysInfo::productType();
                                           ^
/home/travis/build/EnthDev/dedicatedslave/src/logic/helpersys.cpp:10:46: error: ‘productVersion’ is not a member of ‘QSysInfo’
         qDebug() << "\tproductVersion():" << QSysInfo::productVersion();
                                              ^
/home/travis/build/EnthDev/dedicatedslave/src/logic/helpersys.cpp:11:49: error: ‘prettyProductName’ is not a member of ‘QSysInfo’
         qDebug() << "\tprettyProductName():" << QSysInfo::prettyProductName();
                                                 ^
[ 38%] Building CXX object CMakeFiles/dedicatedslave-lib.dir/src/data/models.cpp.o
make[2]: *** [CMakeFiles/dedicatedslave-lib.dir/src/logic/helpersys.cpp.o] Error 1
make[2]: *** Waiting for unfinished jobs....
/home/travis/build/EnthDev/dedicatedslave/src/data/data.cpp: In constructor ‘DedicatedSlaveData::DedicatedSlaveData(QObject*)’:
/home/travis/build/EnthDev/dedicatedslave/src/data/data.cpp:41:15: error: ‘qInfo’ was not declared in this scope
         qInfo() << "\tDeserializating and loading data...";
               ^
In file included from /home/travis/build/EnthDev/dedicatedslave/include/dedicatedslave/logic/app.h:17:0,
                 from /home/travis/build/EnthDev/dedicatedslave/src/logic/appsteamapi.cpp:1:
/home/travis/build/EnthDev/dedicatedslave/include/dedicatedslave/data/data.h:24:27: error: ISO C++ forbids declaration of ‘Q_ENUM’ with no type [-fpermissive]
     Q_ENUM (InstancesTypes);
                           ^
In file included from /home/travis/build/EnthDev/dedicatedslave/include/dedicatedslave/logic/app.h:17:0,
                 from /home/travis/build/EnthDev/dedicatedslave/src/logic/app.cpp:1:
/home/travis/build/EnthDev/dedicatedslave/include/dedicatedslave/data/data.h:24:27: error: ISO C++ forbids declaration of ‘Q_ENUM’ with no type [-fpermissive]
     Q_ENUM (InstancesTypes);
                           ^
/home/travis/build/EnthDev/dedicatedslave/src/logic/app.cpp: In constructor ‘DedicatedSlaveApp::DedicatedSlaveApp(const QString&, QObject*)’:
/home/travis/build/EnthDev/dedicatedslave/src/logic/app.cpp:29:15: error: ‘qInfo’ was not declared in this scope
         qInfo() << "\tcurrentPath:" << QDir::currentPath();
               ^
/home/travis/build/EnthDev/dedicatedslave/src/logic/app.cpp: In member function ‘void DedicatedSlaveApp::verifyInstProgress(QString)’:
/home/travis/build/EnthDev/dedicatedslave/src/logic/app.cpp:152:8: error: ‘qInfo’ was not declared in this scope
  qInfo() << "cmd: " << c;
        ^
/home/travis/build/EnthDev/dedicatedslave/src/logic/app.cpp:160:13: error: ‘QOverload’ was not declared in this scope
  connect(p, QOverload<int,
             ^
/home/travis/build/EnthDev/dedicatedslave/src/logic/app.cpp:160:23: error: expected primary-expression before ‘int’
  connect(p, QOverload<int,
                       ^
/home/travis/build/EnthDev/dedicatedslave/src/logic/app.cpp:161:22: error: expected primary-expression before ‘>’ token
  QProcess::ExitStatus>::of(&QProcess::finished),
                      ^
/home/travis/build/EnthDev/dedicatedslave/src/logic/app.cpp:161:23: error: ‘::of’ has not been declared
  QProcess::ExitStatus>::of(&QProcess::finished),
                       ^
/home/travis/build/EnthDev/dedicatedslave/src/logic/app.cpp: In member function ‘void DedicatedSlaveApp::slot_handleVerfiyFinished(int, QProcess::ExitStatus)’:
/home/travis/build/EnthDev/dedicatedslave/src/logic/app.cpp:199:8: error: ‘qInfo’ was not declared in this scope
  qInfo() << "Exit code:" << exitCode;
        ^
make[2]: *** [CMakeFiles/dedicatedslave-lib.dir/src/data/data.cpp.o] Error 1
/home/travis/build/EnthDev/dedicatedslave/src/data/dbmanager.cpp: In constructor ‘DbManager::DbManager(const QString&)’:
/home/travis/build/EnthDev/dedicatedslave/src/data/dbmanager.cpp:14:13: error: ‘qInfo’ was not declared in this scope
       qInfo().nospace() << "(DB)\tConnection ok (" << path << ")";
             ^
/home/travis/build/EnthDev/dedicatedslave/src/data/dbmanager.cpp: In member function ‘void DbManager::printAllInst() const’:
/home/travis/build/EnthDev/dedicatedslave/src/data/dbmanager.cpp:151:11: error: ‘qInfo’ was not declared in this scope
     qInfo() << "\tInstances in db:";
           ^
make[2]: *** [CMakeFiles/dedicatedslave-lib.dir/src/logic/appsteamapi.cpp.o] Error 1
make[2]: *** [CMakeFiles/dedicatedslave-lib.dir/src/logic/app.cpp.o] Error 1
make[2]: *** [CMakeFiles/dedicatedslave-lib.dir/src/data/dbmanager.cpp.o] Error 1
make[1]: *** [CMakeFiles/dedicatedslave-lib.dir/all] Error 2
make: *** [all] Error 2
The command "make -j8" exited with 2.

[SGaist]

Hi and welcome to devnet,

What OS are you running on Travis ?
What compiler ? Which version of the compiler ?

[alex1a]

Hello, thanks @SGaist, ubuntu 14.04.5 LTS with gcc 4.8.4, cmake 3.9.2

Build system information
Build language: cpp
Build group: stable
Build dist: trusty
Build id: 343015953
Job id: 343015955
Runtime kernel version: 4.4.0-101-generic
travis-build version: 86020898a
Build image provisioning date and time
Tue Dec  5 19:58:13 UTC 2017
Operating System Details
Distributor ID:	Ubuntu
Description:	Ubuntu 14.04.5 LTS
Release:	14.04
Codename:	trusty
Cookbooks Version
7c2c6a6 https://github.com/travis-ci/travis-cookbooks/tree/7c2c6a6
git version
git version 2.15.1
bash version
GNU bash, version 4.3.11(1)-release (x86_64-pc-linux-gnu)
gcc version
gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
docker version
Client:
 Version:      17.09.0-ce
 API version:  1.32
 Go version:   go1.8.3
 Git commit:   afdb6d4
 Built:        Tue Sep 26 22:42:38 2017
 OS/Arch:      linux/amd64
Server:
 Version:      17.09.0-ce
 API version:  1.32 (minimum version 1.12)
 Go version:   go1.8.3
 Git commit:   afdb6d4
 Built:        Tue Sep 26 22:41:20 2017
 OS/Arch:      linux/amd64
 Experimental: false
clang version
clang version 5.0.0 (tags/RELEASE_500/final)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/local/clang-5.0.0/bin
jq version
jq-1.5
bats version
Bats 0.4.0
shellcheck version
0.4.6
shfmt version
v2.0.0
ccache version
ccache version 3.1.9
Copyright (C) 2002-2007 Andrew Tridgell
Copyright (C) 2009-2011 Joel Rosdahl
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 3 of the License, or (at your option) any later
version.
cmake version
cmake version 3.9.2

[ambershark]

@alex1a Your gcc on the travis machine is way too old. That's probably your issue. That compiler is 4 years old.

Arch is cutting edge so your have gcc 7.x.x of some sort depending on when you last ran pacman -Syu. ;) Probably 7.3.0.

That's 3 whole major revisions compared to your Travis box.

Edit: I read the error more closely. Can I see data.h? It almost looks like you haven't included QObject since it doesn't know what Q_ENUM is. Or it could be it doesn't know what InstancesTypes are. Either way it may be less of a compiler issue and more of something your later compiler implicitly included that needs to be explicitly included in your older version.

[alex1a]

@ambershark thanks for your answer, yeah travis build systems are way to old, should i try to install some newer gcc version with travis config ? you are right my gcc version on arch it is 7.3.0.

ofcourse, here is data.cpp and data.h

[ambershark]

@alex1a Yea after looking at data.h I bet it's a compiler issue. You can definitely try to upgrade it and see if it helps. Your data.h code seems fine at first glance. Confirmed by the fact it builds properly on your 7.3 gcc with the same Qt version.

[ambershark]

@alex1a It also looks like you are possibly using different Qt versions though because some of the other errors are things that have changed between Qt versions.

I.e.

/home/travis/build/EnthDev/dedicatedslave/src/logic/helpersys.cpp: In static member function ‘static void DedicatedSlave::HelperSys::getInfo()’:
/home/travis/build/EnthDev/dedicatedslave/src/logic/helpersys.cpp:8:54: error: ‘currentCpuArchitecture’ is not a member of ‘QSysInfo’
         qDebug() << "\tcurrentCpuArchitecture():" << QSysInfo::currentCpuArchitecture();

Although this could be because you didn't #include <QDebug>. That may be one of the explicit includes I was talking about above.

[alex1a]

@ambershark oki, i appreciate your attention