I'm trying to add the relevant "-I"path_to_your_SDL_include_directory"" as outlined in several similar posts such as

main.cpp

#include <iostream>
#include <SDL.h>


const int WIDTH = 800, HEIGHT = 600;

int main( int argc, char *argv[] )
{
    SDL_Init( SDL_INIT_EVERYTHING );

    SDL_Window *window = SDL_CreateWindow( "Hello SDL WORLD", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, WIDTH, HEIGHT, SDL_WINDOW_ALLOW_HIGHDPI );

    if ( NULL == window )
    {
        std::cout << "Could not create window: " << SDL_GetError( ) << std::endl;
        return 1;
    }

    SDL_Event windowEvent;

    while ( true )
    {
        if ( SDL_PollEvent( &windowEvent ) )
        {
            if ( SDL_QUIT == windowEvent.type )
            { break; }
        }
    }

    SDL_DestroyWindow( window );
    SDL_Quit( );

    return EXIT_SUCCESS;
}

Makefile

all:
    g   -I lib/SDL2_lib/include -Llib/SDL2_lib/lib -o Main src/main.cpp

tasks.json

{
    "tasks": [
        {
            "type": "cppbuild",
            "label": "C/C  : g  .exe build active file",
            "command": "C:\\MinGW\\bin\\g  .exe",
            "args": [
                "-fdiagnostics-color=always",
                "-g",
                "${file}",
                "-I lib/SDL2_lib/include",
                "-L lib/SDL2_lib/lib",
                "-lmingw32",
                "-lSDL2main",
                "-lSDL2",
                "-o",
                "${workspaceFolder}/bin\\${fileBasenameNoExtension}.exe"
            ],
            "options": {
                "cwd": "${fileDirname}"
            },
            "problemMatcher": [
                "$gcc"
            ],
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "detail": "Task generated by Debugger."
        }
    ],
    "version": "2.0.0"
}

c_cpp_properties.json

{
    "configurations": [
        {
            "name": "Win32",
            "includePath": [
                "${workspaceFolder}/**",
                "${workspaceFolder}/lib/SDL2_lib/include"
                        ],
            "defines": [
                "_DEBUG",
                "UNICODE",
                "_UNICODE"
            ],
            "compilerPath": "C:\\MinGW\\bin\\g  .exe",
            "cStandard": "gnu11",
            "cppStandard": "c  14",
            "intelliSenseMode": "windows-gcc-x86",
            "configurationProvider": "ms-vscode.makefile-tools",
            "compilerArgs": [
                "-I lib/SDL2_lib/include",
                "-L lib/SDL2_lib/lib",
                "-lmingw32",
                "-lSDL2main",
                "-lSDL2"
            ]
        }
    ],
    "version": 4
}

Despite all this, I am getting the error;

Any help is appreciated!

Edit: I should also add that adding a random file name instead of SDL.h underlines the entire include statement instead of just the end. So clearly, VSCode does know it exists, its just not adding it to the program which is what I'm guessing

Edit2: Running make from powershell gives the following error;

CodePudding user response：

I haven't used Windows and VSCode but I guess you can try

g   -I lib/SDL2_lib/include -Llib/SDL2_lib/lib -lsdl -o Main src/main.cpp

or

g   -I lib/SDL2_lib/include -Llib/SDL2_lib/lib -lsdl2 -o Main src/main.cpp

CodePudding user response：

It is clear that you have two problems.

1. The VSCode's C extension complains about the file SDL2.h
2. There's a linking problema when you compile from your Makefile

Let's address the Makefile thing first:

There's a typo in your Makefile, it says SDL2_lib/libr instead of SDL2_lib/lib.

After fixing that, you must add the libraries to link with. Technically, you only need libSDL2.la (assuming dynamic linking) since you already wrote your own main() function (therefore you don't need SDL2main.

So, the command line in your Makefile should look like this (not how I put the project's files before the libs to guarantee symbols are loaded correctly, this becomes more important when using intermediate files):

g   -Ilib/SDL2_lib/include -Llib/SDL2_lib/lib src/main.cpp \
    -lmingw32 -lSDL2main -lSDL2 -mwindows \
    -o Main

If that doesn't work, please provide the compiler output (as text, not image) but not before trying this:

Option one: Specify the whole library filenamea

g   -Ilib/SDL2_lib/include -Llib/SDL2_lib/lib src/main.cpp \
    -lmingw32 -lSDL2main.la -llibSDL2.la -mwindows \
    -o Main

Option two: Link statically (you won't need the DLL)

g   -Ilib/SDL2_lib/include -Llib/SDL2_lib/lib src/main.cpp \
    -lmingw32 lib/SDL2_lib/lib/libSDL2main.a lib/SDL2_lib/lib/libSDL2.a -mwindows \
    -o Main

About VSCode:

I don't think there's anything wrong with your configuration. You may want to try switching to backslashes (which should't make a difference anyway) or (yes, for real) reloading VSCode.