在 Nixos 上的 QtCreator 中编译 Qt5 应用程序（21.05）

Question

我正在尝试从 Nixos 上的 QtCreator 编译 Qt5 应用程序。

我已经按照 https://nixos.wiki/wiki/Qt 中所述创建了 shell.nix 文件。我按如下方式启动 QtCreator：

$ ls -al
   ...
.rw-r--r--  236 username 30 Jun 17:31 shell.nix
   ...
$ nix-shell
[nix-shell:~/myproject]$ qtcreator

QtCreator 启动，我可以打开我的项目文件 (myproject.pro)。

但是，当我“构建项目”[ctrl+b] 时，我收到以下错误消息：

9:38:09: Running steps for project myproject...
19:38:09: Starting: "/nix/store/gkr9j6p60vib8k8bxhc33581fn4pl8d8-qt-full-5.15.2/bin/qmake" /tmp/myproject/myproject.pro -spec linux-g++ CONFIG+=debug CONFIG+=qml_debug
19:38:09: The process "/nix/store/gkr9j6p60vib8k8bxhc33581fn4pl8d8-qt-full-5.15.2/bin/qmake" exited normally.
19:38:09: Starting: "/nix/store/lxmh13cqvd2kwc3qbmnjknvynw6lc2si-gnumake-4.3/bin/make" -f /tmp/build-myproject-Desktop-Debug/Makefile qmake_all
make: Nothing to be done for 'qmake_all'.
19:38:09: The process "/nix/store/lxmh13cqvd2kwc3qbmnjknvynw6lc2si-gnumake-4.3/bin/make" exited normally.
19:38:09: Starting: "/nix/store/lxmh13cqvd2kwc3qbmnjknvynw6lc2si-gnumake-4.3/bin/make" -j16
g++ -Wl,-rpath,/nix/store/wn6q10flx0id4yxa96yq1jzpmbvi7d5r-qtwebkit-5.212.0-alpha4/lib -Wl,-rpath,/nix/store/wn6q10flx0id4yxa96yq1jzpmbvi7d5r-qtwebkit-5.212.0-alpha4/lib -Wl,-rpath,/nix/store/gpw8cms1ig5k16d86zr7hkhi77gccl9r-qtwebkit-5.212.0-alpha4/lib -Wl,-rpath,/nix/store/gpw8cms1ig5k16d86zr7hkhi77gccl9r-qtwebkit-5.212.0-alpha4/lib -Wl,-rpath,/nix/store/3sx0lss99gj0krp3xgqz47zipp8fmj18-qtbase-5.14.2/lib -o myproject cobs.o main.o mainwindow.o srm60binarycom.o moc_mainwindow.o   -L/nix/store/8jix4ismqsz2pz6gji3zpawdv2k5aqws-libGL-1.3.3/lib /nix/store/3sx0lss99gj0krp3xgqz47zipp8fmj18-qtbase-5.14.2/lib/libQt5Widgets.so /nix/store/3sx0lss99gj0krp3xgqz47zipp8fmj18-qtbase-5.14.2/lib/libQt5Gui.so /nix/store/3sx0lss99gj0krp3xgqz47zipp8fmj18-qtbase-5.14.2/lib/libQt5Core.so -L/nix/store/izvv5r9a8s19l742nfwr72z2w3ijq8bh-libglvnd-1.3.3/lib -lGL -lpthread   
/nix/store/qvc6cz5d43jhhm4a3r48xkrc82xh1s95-binutils-2.35.1/bin/ld: cannot find crt1.o: No such file or directory
/nix/store/qvc6cz5d43jhhm4a3r48xkrc82xh1s95-binutils-2.35.1/bin/ld: cannot find crti.o: No such file or directory
collect2: error: ld returned 1 exit status
make: *** [Makefile:429: myproject] Error 1
19:38:09: The process "/nix/store/lxmh13cqvd2kwc3qbmnjknvynw6lc2si-gnumake-4.3/bin/make" exited with code 2.
Error while building/deploying project myproject (kit: Desktop)
When executing step "Make"
19:38:09: Elapsed time: 00:00.

错误：

.../ld: cannot find crt1.o: No such file or directory
.../ld: cannot find crti.o: No such file or directory

如何解决这个问题？

Answer 1

这可能是由于 Qt Creator 选择了裸 gcc / g++ 编译器而不是包装版本。打包版本添加了一些命令行选项来使事情正常工作。

就我而言，我必须进入 Tools > Options > Kits 并将自动选择的 C 和 C++ 编译器从“gcc”切换到“gcc-wrapper”。

请参阅相关讨论https://discourse.nixos.org/t/nix-shell-cmake-gcc-qt-creator-not-working-together/16703。

Answer 2

我启动了 Qt5 创建者（NixOS 23.05）： nix-shell -p qt5Full -p qtcreator --run qtcreator 并使用生成的 QT Widget 应用程序运行与该线程相同的错误（“缺少 crt1.0”）

提供的答案是可以的，只需要一些详细的步骤：

1. 记下 QtCreator 的工具 > 选项 > 套件自动检测的 c 和 c++ 路径 (/nix/store/lcf37pgp3rgww67v9x2990hbfwx96c1w-gcc-wrapper-12.2.0/bin/gcc /nix/store/lcf37pgp3rgww67v9x2990hbfwx96c1w-gcc-wrapper-12.2.0/bin/g++)

2. 从/nix/store（/nix/store/0s8gvg6nh3d3cbby1hjf69jfb2xdvbvp-cmake-3.25.3/bin/cmake）中找到cmake

3. 在 UI Kits 选项中“删除全部”，然后使用找到的路径手动添加 c、c++ 和 Cmake。

编译并运行应用程序后就ok了