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Link error with qt 5.12

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  • F Offline
    F Offline
    Francky033
    wrote on last edited by
    #1

    When I try to compile my program under Qt 5.12 for Android, I get an avalanche of linkage errors:

    Everything worked well with previous versions of Qt.... What's going on? What's going on?

    Thanx!

    Best regards,

    Franck

    My pro file :

    # Android armeabi-v7a
	equals(ANDROID_TARGET_ARCH, armeabi-v7a) {

                message("armeabi-v7a")
                QMAKE_CXXFLAGS_DEBUG += "-fsigned-char -g -O0"
                QMAKE_CFLAGS_DEBUG += "-fsigned-char -g -O0"
                QMAKE_LFLAGS_DEBUG += "-O0 -Wl,--allow-multiple-definition"


                # TODO: Peut-on changer l'optimisaton ?
                QMAKE_CXXFLAGS_RELEASE += "-fsigned-char -Ofast -mfloat-abi=softfp -DNDEBUG"
                QMAKE_CFLAGS_RELEASE += "-fsigned-char -Ofast -mfloat-abi=softfp -DNDEBUG"
                QMAKE_LFLAGS_RELEASE += "-O1 -Wl,--allow-multiple-definition"

                ANDROID_EXTRA_LIBS = \
                   $$PWD/android/lib/armv7/libcrypto.so \
                   $$PWD/android/lib/armv7/libssl.so

#CONFIG += console

                ANDROID_PACKAGE_SOURCE_DIR = $$PWD/android

                #ANDROID_PERMISSIONS=

                INCLUDEPATH += ../quazip-0.7.3/quazip

		LIBS += "../freetype2-android-master/Android/obj/local/armeabi-v7a/libfreetype2-static.a"
                LIBS += "../assimp-4.1.0/lib/libassimp_arm_windows.a"
                LIBS += "../quazip-0.7.3/lib/armeabi-v7a/libquazip.a"
	}

    E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\include/assimp/Importer.hpp:648: error: undefined reference to 'std::string::c_str() const'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\include/assimp/Logger.hpp:243: error: undefined reference to 'std::string::c_str() const'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\include/assimp/Logger.hpp:249: error: undefined reference to 'std::string::c_str() const'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\include/assimp/Logger.hpp:255: error: undefined reference to 'std::string::c_str() const'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\include/assimp/IOSystem.hpp:282: error: undefined reference to 'std::string::empty() const'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\include/assimp/IOSystem.hpp:295: error: undefined reference to 'std::allocator<char>::allocator()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\include/assimp/IOSystem.hpp:295: error: undefined reference to 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\include/assimp/IOSystem.hpp:295: error: undefined reference to 'std::allocator<char>::~allocator()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\include/assimp/IOSystem.hpp:295: error: undefined reference to 'std::allocator<char>::~allocator()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\include/assimp/IOSystem.hpp:299: error: undefined reference to 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\include/assimp/IOSystem.hpp:322: error: undefined reference to 'std::string::empty() const'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\include/assimp/IOSystem.hpp:336: error: undefined reference to 'std::string::empty() const'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\include/assimp/IOSystem.hpp:351: error: undefined reference to 'std::string::empty() const'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/TinyFormatter.h:69: error: undefined reference to 'std::basic_ostringstream<char, std::char_traits<char>, std::allocator<char> >::~basic_ostringstream()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Profiler.h:73: error: undefined reference to 'std::chrono::_V2::system_clock::now()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Profiler.h:74: error: undefined reference to 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Profiler.h:74: error: undefined reference to 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Profiler.h:85: error: undefined reference to 'std::chrono::_V2::system_clock::now()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Profiler.h:86: error: undefined reference to 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.h:70: error: undefined reference to 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:154: error: undefined reference to 'std::string::operator=(char const*)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:242: error: undefined reference to 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:252: error: undefined reference to 'std::string::operator+=(std::string const&)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:403: error: undefined reference to 'std::string::operator=(char const*)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:438: error: undefined reference to 'std::string::operator=(char const*)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:496: error: undefined reference to 'std::string::operator=(char const*)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:585: error: undefined reference to 'std::allocator<char>::allocator()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:585: error: undefined reference to 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:585: error: undefined reference to 'std::allocator<char>::~allocator()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:610: error: undefined reference to 'std::string::operator=(std::string&&)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:617: error: undefined reference to 'std::allocator<char>::allocator()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:617: error: undefined reference to 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:617: error: undefined reference to 'std::allocator<char>::~allocator()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:632: error: undefined reference to 'std::string::find_last_of(char, unsigned int) const'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:645: error: undefined reference to 'std::string::operator=(std::string&&)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:652: error: undefined reference to 'std::allocator<char>::allocator()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:652: error: undefined reference to 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:712: error: undefined reference to 'std::string::operator=(std::string const&)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:968: error: undefined reference to 'std::string::begin()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:968: error: undefined reference to 'std::string::end()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:968: error: undefined reference to 'std::string::begin()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Importer.cpp:1072: error: undefined reference to 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(std::string const&)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/stl_tree.h:203: error: undefined reference to 'std::_Rb_tree_increment(std::_Rb_tree_node_base*)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/TinyFormatter.h:90: error: undefined reference to 'std::basic_ostringstream<char, std::char_traits<char>, std::allocator<char> >::basic_ostringstream(std::_Ios_Openmode)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/TinyFormatter.h:91: error: undefined reference to 'std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/TinyFormatter.h:90: error: undefined reference to 'std::basic_ostringstream<char, std::char_traits<char>, std::allocator<char> >::~basic_ostringstream()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/TinyFormatter.h:140: error: undefined reference to 'std::basic_ostream<char, std::char_traits<char> >& std::operator<< <char, std::char_traits<char>, std::allocator<char> >(std::basic_ostream<char, std::char_traits<char> >&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/TinyFormatter.h:140: error: undefined reference to 'std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/TinyFormatter.h:110: error: undefined reference to 'std::basic_ostringstream<char, std::char_traits<char>, std::allocator<char> >::str() const'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/TinyFormatter.h:140: error: undefined reference to 'std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/TinyFormatter.h:140: error: undefined reference to 'std::ostream::operator<<(double)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/TinyFormatter.h:140: error: undefined reference to 'std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/stl_tree.h:282: error: undefined reference to 'std::_Rb_tree_increment(std::_Rb_tree_node_base const*)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/basic_string.tcc:699: error: undefined reference to 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string()'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/basic_string.tcc:700: error: undefined reference to 'std::string::size() const'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/basic_string.tcc:700: error: undefined reference to 'std::string::reserve(unsigned int)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/basic_string.tcc:701: error: undefined reference to 'std::string::append(char const*, unsigned int)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/basic_string.tcc:702: error: undefined reference to 'std::string::append(std::string const&)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/basic_string.h:2487: error: undefined reference to 'std::string::append(char const*)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/basic_string.h:2487: error: undefined reference to 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(std::string&&)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/TinyFormatter.h:84: error: undefined reference to 'std::basic_ostringstream<char, std::char_traits<char>, std::allocator<char> >::basic_ostringstream(std::_Ios_Openmode)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/TinyFormatter.h:126: error: undefined reference to 'std::ostream::operator<<(unsigned int)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/basic_string.h:2514: error: undefined reference to 'std::string::size() const'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/basic_string.h:2514: error: undefined reference to 'std::string::size() const'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/basic_string.h:2516: error: undefined reference to 'std::string::data() const'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/basic_string.h:2516: error: undefined reference to 'std::string::data() const'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/basic_string.h:2516: error: undefined reference to 'std::string::size() const'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/stl_pair.h:113: error: undefined reference to 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(std::string const&)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/stl_pair.h:152: error: undefined reference to 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(std::string&&)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/GenericProperty.h:64: error: undefined reference to 'std::string::operator=(std::string const&)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/stl_vector.h:1585: error: undefined reference to 'std::__throw_length_error(char const*)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/basic_string.h:2590: error: undefined reference to 'std::string::compare(std::string const&) const'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/stl_tree.h:1726: error: undefined reference to 'std::_Rb_tree_insert_and_rebalance(bool, std::_Rb_tree_node_base*, std::_Rb_tree_node_base*, std::_Rb_tree_node_base&)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/stl_vector.h:1585: error: undefined reference to 'std::__throw_length_error(char const*)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/stl_vector.h:1585: error: undefined reference to 'std::__throw_length_error(char const*)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/ext/new_allocator.h:127: error: undefined reference to 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(std::string const&)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/stl_tree.h:218: error: undefined reference to 'std::_Rb_tree_decrement(std::_Rb_tree_node_base*)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/stl_tree.h:203: error: undefined reference to 'std::_Rb_tree_increment(std::_Rb_tree_node_base*)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/stl_tree.h:1175: error: undefined reference to 'std::_Rb_tree_insert_and_rebalance(bool, std::_Rb_tree_node_base*, std::_Rb_tree_node_base*, std::_Rb_tree_node_base&)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/stl_tree.h:1175: error: undefined reference to 'std::_Rb_tree_insert_and_rebalance(bool, std::_Rb_tree_node_base*, std::_Rb_tree_node_base*, std::_Rb_tree_node_base&)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/stl_tree.h:1175: error: undefined reference to 'std::_Rb_tree_insert_and_rebalance(bool, std::_Rb_tree_node_base*, std::_Rb_tree_node_base*, std::_Rb_tree_node_base&)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/stl_tree.h:218: error: undefined reference to 'std::_Rb_tree_decrement(std::_Rb_tree_node_base*)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/stl_tree.h:218: error: undefined reference to 'std::_Rb_tree_decrement(std::_Rb_tree_node_base*)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/stl_tree.h:218: error: undefined reference to 'std::_Rb_tree_decrement(std::_Rb_tree_node_base*)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/stl_construct.h:75: error: undefined reference to 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(std::string&&)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/tuple:1104: error: undefined reference to 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(std::string const&)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\include/assimp/types.h:279: error: undefined reference to 'std::string::length() const'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/StdOStreamLogStream.h:93: error: undefined reference to 'std::ostream::flush()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/DefaultLogger.cpp:129: error: undefined reference to 'std::cerr'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/DefaultLogger.cpp:129: error: undefined reference to 'std::cout'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/bits/stl_vector.h:1585: error: undefined reference to 'std::__throw_length_error(char const*)'
E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\include/iostream:74: error: undefined reference to 'std::ios_base::Init::Init()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/DefaultLogger.cpp:429: error: undefined reference to 'std::ios_base::Init::~Init()'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/Exceptional.h:62: error: undefined reference to 'std::runtime_error::runtime_error(std::string const&)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/ValidateDataStructure.cpp:93: error: undefined reference to 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, unsigned int, std::allocator<char> const&)'
E:\VisualStudioProjects\MYPROJECTS\assimp-4.1.0\code/ValidateDataStructure.cpp:108: error: undefined reference to 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, unsigned int, std::allocator<char> const&)'
    1 Reply Last reply
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    • F Offline
      F Offline
      Francky033
      wrote on last edited by Francky033
      #2

      If i use the flag "-stdlib=libstdc++", the compilation works fine but I have got the message :

      "readelf: Error: Not an ELF file - it has the wrong magic bytes at the start" and the application crashes on startup on the android device...

      jsulmJ 1 Reply Last reply
      0
      • M Offline
        M Offline
        mvuori
        wrote on last edited by
        #3

        You don't mention your NDK. If you still use v. 10, I'd suggest next trying the new 18b, which should be the most comptible with 5.12

        1 Reply Last reply
        1
        • F Offline
          F Offline
          Francky033
          wrote on last edited by
          #4

          I tried with the 10, 17c, 18b versions of NDK but without success. I always get the same link errors.

          J.HilkJ 1 Reply Last reply
          0
          • F Francky033

            If i use the flag "-stdlib=libstdc++", the compilation works fine but I have got the message :

            "readelf: Error: Not an ELF file - it has the wrong magic bytes at the start" and the application crashes on startup on the android device...

            jsulmJ Offline
            jsulmJ Offline
            jsulm
            Lifetime Qt Champion
            wrote on last edited by
            #5

            @Francky033 Are you sure you built for Android?

            https://forum.qt.io/topic/113070/qt-code-of-conduct

            1 Reply Last reply
            0
            • F Francky033

              I tried with the 10, 17c, 18b versions of NDK but without success. I always get the same link errors.

              J.HilkJ Offline
              J.HilkJ Offline
              J.Hilk
              Moderators
              wrote on last edited by J.Hilk
              #6

              @Francky033 said in Link error with qt 5.12:

              I tried with the 10, 17c, 18b versions of NDK but without success. I always get the same link errors.

              how exactly did you change your NDK that you're linking against? Because this was the issue I had. Took me a while, fidling with QTC, to get it running correctly.

              Don't foget to delete your build folder for a clean rebuild after changing.

              Also keep in mind, if you're using pre compiled libaries, you may have to recompile them, when using 5.12. I run into that with QZXing as part of my project.

              Be aware of the Qt Code of Conduct, when posting : https://forum.qt.io/topic/113070/qt-code-of-conduct

              Q: What's that?
              A: It's blue light.
              Q: What does it do?
              A: It turns blue.

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              • F Offline
                F Offline
                Francky033
                wrote on last edited by
                #7

                Yes, I have build for armeabi-v7a. With Qt 5.11.3, everything works well...

                1 Reply Last reply
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                • F Offline
                  F Offline
                  Francky033
                  wrote on last edited by Francky033
                  #8

                  I recompiled all libraries with Qt 5.12 and the NDK r17b. I deleted the build folders before performing the rebuilds.
                  I always get the same link errors.
                  Could it be the fact that the compiler changed between version 5.11 and 5.12 of Qt? (gcc ->clang)
                  Is it due to a change in the standard library?

                  1 Reply Last reply
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                  • F Offline
                    F Offline
                    Francky033
                    wrote on last edited by
                    #9

                    have found the source of my problem. It was just necessary to link with the static library gnustd....

                    I succeeded by adding the line

                    LIBS += "E:\Android\Sdk\ndk-bundle\sources\cxx-stl\gnu-libstdc++\4.9\libs\armeabi-v7a\libgnustl_static.a"

                    to my pro file

                    Is there a more elegant way to do this?

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