MeSo I'm trying to build SFML fresh in Code::Blocks.
||=== Build: all in SFML (compiler: GNU GCC Compiler) ===|
.\||error: unrecognized command line option '-Wnull-dereference'|
.\||error: unrecognized command line option '-Wmisleading-indentation'|
.\||error: unrecognized command line option '-Wduplicated-cond'|
src\SFML\System\CMakeFiles\sfml-system.dir\build.make|75|recipe for target 'src/SFML/System/CMakeFiles/sfml-system.dir/Clock.cpp.obj' failed|
CMakeFiles\Makefile2|476|recipe for target 'src/SFML/System/CMakeFiles/sfml-system.dir/all' failed|
C:\SFML\2.6.x\BUILD\Makefile|164|recipe for target 'all' failed|
||=== Build failed: 6 error(s), 0 warning(s) (0 minute(s), 1 second(s)) ===|
ChatGPT:It looks like there are some compiler options that are not recognized by your version of GCC. The options in question are "-Wnull-dereference", "-Wmisleading-indentation", and "-Wduplicated-cond". These options are used to enable additional warning messages for the compiler, but they may not be supported by older versions of GCC.
To fix this issue, you can try disabling these options in your build. To do this, you can modify the CMakeLists.txt file for SFML and remove the corresponding options from the CMAKE_CXX_FLAGS variable.
Alternatively, you can try upgrading your version of GCC to a more recent one that supports these options. You can check the documentation for your version of GCC to see if these options are supported.
Once you have made the necessary changes, you can try building SFML again in Code::Blocks.
Me:I'm using TDM-GCC-32 10.3.0 version (latest).
ChatGPT:If you're using TDM-GCC-32 10.3.0, then the compiler options "-Wnull-dereference", "-Wmisleading-indentation", and "-Wduplicated-cond" should be supported. However, it's possible that they are not enabled by default.
To enable these options, you can add them to the CMAKE_CXX_FLAGS variable in the CMakeLists.txt file for SFML. Open the CMakeLists.txt file and look for the line that sets CMAKE_CXX_FLAGS. It may look something like this:
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra")
To enable the additional warning messages, add the following options to the line:
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wnull-dereference -Wmisleading-indentation -Wduplicated-cond")
Save the file and try building SFML again in Code::Blocks. This should enable the additional warning messages for the compiler.
Me:Do I have to do any configuration in Code::Blocks related to CMake? I set the whole build up with CMake, but do I have to go into settings and point to the CMake executable or anything like that?
ChatGPT:Yes, you will need to configure Code::Blocks to use CMake as the build system for your project. To do this, you will need to set the path to the CMake executable in the Code::Blocks settings.
Here are the steps to configure Code::Blocks for CMake:
- Open Code::Blocks and go to "Settings" from the main menu.
- Select "Global variables" from the left-hand side of the Settings dialog.
- Scroll down to the "CMake" section and click the "..." button next to "CMake executable".
- Browse to the location of the CMake executable on your system and select it.
- Click "OK" to save the settings.
Now, when you build your SFML project in Code::Blocks, it should use CMake as the build system. You can verify this by looking at the build output, which should show the CMake commands being executed.
Me:I don't see a "CMake" setting in the "Global Variables". There is a "User Defined Fields" section though.
ChatGPT:If you don't see a "CMake" section in the "Global Variables" dialog, it's possible that the CMake plugin for Code::Blocks is not installed. You can check if the plugin is installed by going to "Plugins" from the main menu, and looking for "CMake" in the list of installed plugins.
- If the CMake plugin is not installed, you can install it by following these steps:
- Go to "Plugins" from the main menu and select "Manage Plugins".
- Look for "CMake" in the list of available plugins and click the checkbox next to it to select it.
- Click the "Install" button to install the plugin.
- After the installation is complete, restart Code::Blocks.
Once the CMake plugin is installed, you should see a "CMake" section in the "Global Variables" dialog. You can then follow the steps I outlined earlier to set the path to the CMake executable.
Me:Sorry but I don't see a "CMake" plug-in listed whatsoever. Everything is listed alphabetically, so I would think it should be between "Class wizard" and "Code completion" entries.
ChatGPT:If you don't see the CMake plugin listed in the "Manage Plugins" dialog, it's possible that the plugin is not available for your version of Code::Blocks. The CMake plugin was introduced in version 17.12, so if you're using an older version of Code::Blocks, the plugin may not be available.
In this case, you will need to use an external build system to build your SFML project with CMake. Here are the steps you can follow:
- Open the CMake GUI and set the source and build directories for your SFML project.
- Click the "Configure" button to generate the build files.
- Select the appropriate generator for your system (e.g. "CodeBlocks - MinGW Makefiles") and click the "Finish" button.
- Once the configuration is complete, click the "Generate" button to generate the Code::Blocks project files.
- Open the generated Code::Blocks project file in Code::Blocks.
- Build the project in Code::Blocks using the "Build" menu.
This should build your SFML project using CMake and Code::Blocks without requiring the CMake plugin.
Me:OK, I just went to CMAKE_CXX_FLAGS and there are no entries. So it seems I have to remove the 3 flags within the Code::Blocks IDE.
ChatGPT:Yes, if there are no entries in the CMAKE_CXX_FLAGS variable, then it's likely that the flags causing the errors you're seeing are being set in the Code::Blocks project settings.
To remove the problematic flags from the Code::Blocks project settings, you can follow these steps:
- Open your SFML project in Code::Blocks.
- From the main menu, go to "Project" > "Build options".
- In the "Build options" dialog, select the "Compiler settings" tab.
- Look for the three flags that are causing the errors ("-Wnull-dereference", "-Wmisleading-indentation", and "-
- Wduplicated-cond") and uncheck the checkboxes next to them.
- Click "OK" to save the changes.
- Build your project again and see if the errors are resolved.
By unchecking the checkboxes next to the problematic flags in the Code::Blocks project settings, you're telling the compiler to not use those flags when building your project. This should prevent the errors you're seeing related to those flags.
Me:I must've lost my marbles because this isn't the "Build options" I'm used to seeing. Strange. What I'm seeing is a list box on the left and a 3 tab section (Pre/post build steps, Custom variables and "Make" commands).
ChatGPT:It's possible that you're looking at the project settings for a different type of project, such as a "Makefile project" or a "Custom makefile project". These types of projects may have a different set of settings compared to a CMake-based project.
- To access the project settings for a CMake-based project in Code::Blocks, you can follow these steps:
- Open your SFML project in Code::Blocks.
- From the main menu, go to "Project" > "Properties".
- In the "Project properties" dialog, select the "Build targets" tab.
- In the "Build targets" tab, you should see a list of build targets, such as "all", "clean", and "install". Select the "all" target.
- Click the "Edit" button to edit the build options for the "all" target.
- In the "Edit target" dialog, select the "Compiler settings" tab.
- Look for the three flags that are causing the errors ("-Wnull-dereference", "-Wmisleading-indentation", and "-
- Wduplicated-cond") and uncheck the checkboxes next to them.
- Click "OK" to save the changes.
- Build your project again and see if the errors are resolved.
By unchecking the checkboxes next to the problematic flags in the CMake-based project settings, you're telling the compiler to not use those flags when building your project. This should prevent the errors you're seeing related to those flags.
Me:Ok, for step 5 I'm not seeing an "Edit" button anywhere. I'm not saying you're wrong, I just don't see it.
ChatGPT:I apologize for the confusion. It's possible that the version of Code::Blocks you're using has a slightly different interface compared to what I'm used to. Here's an alternative way to access the compiler settings for a CMake-based project in Code::Blocks:
- Open your SFML project in Code::Blocks.
- From the main menu, go to "Plugins" > "CMake".
- In the "CMake" plugin window, you should see your SFML project listed. Right-click on the project and select "Settings" from the context menu.
- In the "CMake settings" dialog, select the "Cache" tab.
- Look for the CMAKE_CXX_FLAGS variable and click on the "Edit" button to edit the value.
- In the "Edit cache entry" dialog, remove the three problematic flags ("-Wnull-dereference", "-Wmisleading-indentation", and "-Wduplicated-cond") from the value of the CMAKE_CXX_FLAGS variable.
- Click "OK" to save the changes.
- Close the "CMake settings" dialog and rebuild your project.
By removing the problematic flags from the CMAKE_CXX_FLAGS variable in the CMake settings, you're telling the CMake-generated build system to not use those flags when building your project. This should prevent the errors you're seeing related to those flags.
Me:Ok, now I'm running into the same problem as before. There is no CMake plugin and I don't see a CMake in "Manage plugins" either.
ChatGPT:I apologize for the confusion again. It seems like the version of Code::Blocks you're using doesn't have the CMake plugin installed or enabled by default.
Here's an alternative way to modify the CMAKE_CXX_FLAGS variable for your SFML project:
- Open your SFML project in Code::Blocks.
- From the main menu, go to "Settings" > "Compiler".
- In the "Compiler settings" dialog, select the "Other options" tab.
- Look for the C++ compiler flags option and remove the three problematic flags ("-Wnull-dereference", "-Wmisleading-indentation", and "-Wduplicated-cond") from the list.
- Click "OK" to save the changes.
- From the main menu, go to "Settings" > "Debugger".
- In the "Debugger settings" dialog, select the "GDB/CDB debugger" tab.
- Look for the Default for all projects option and uncheck the checkbox next to "Stop on first line".
- Click "OK" to save the changes.
- Build your project again and see if the errors are resolved.
By removing the problematic flags from the C++ compiler flags option in the Compiler settings, you're telling the compiler to not use those flags when building your project. This should prevent the errors you're seeing related to those flags.
By unchecking the "Stop on first line" checkbox in the Debugger settings, you're telling the debugger to not stop at the first line of code when debugging your project. This can help you avoid unnecessary breakpoints when debugging your code.
Me:I'm in the "Other options" tab (step 3). Now I'm on step 4 and I don't see "C++ compiler flags" anywhere.
ChatGPT:I apologize for the confusion. The option to modify the C++ compiler flags may be located in a different section, depending on your version of Code::Blocks.
Here's an alternative way to modify the CMAKE_CXX_FLAGS variable for your SFML project:
- Open your SFML project in Code::Blocks.
- From the main menu, go to "Project" > "Build options".
- In the "Build options" dialog, select the "Compiler settings" tab.
- Look for the Compiler flags option and click on the "+" button next to it.
- Type in the three problematic flags ("-Wnull-dereference", "-Wmisleading-indentation", and "-Wduplicated-cond") and press "OK" to save the changes.
- Click "OK" again to close the "Build options" dialog.
- Build your project again and see if the errors are resolved.
By adding the problematic flags to the Compiler flags option in the Build options dialog, you're telling the compiler to use those flags when building your project. To prevent the errors you're seeing related to those flags, you'll need to remove them from the list instead.
So in step 5, instead of adding the three flags, you should remove them from the list if they're already present.