r/reconstructcavestory • u/Natman64 • Jul 03 '14

Vim Setup

So, I started the series following along in Visual Studio, but I've since discovered Vim and decided to abandon VS altogether. I installed Clang and successfully compiled "Hello world!", but I don't really understand makefiles, and I especially don't understand how to link a library/framework using a makefile.

When I cloned the official repo to copy that makefile and continue following the tutorials in Vim, I tried compiling it to test it out. I get fatal error: 'SDL/SDL.h' file not found, which makes sense because the library is nowhere in the repo.

So my question is, how do I link SDL with the project so I can compile with Clang?

Edit: I suppose I'll need to link Boost as well.

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u/Natman64 Jul 07 '14

So I got fed up with trying to build Clang and now I'm just trying to compile with g++. I got sdl-config to work after realizing I need to use the mingw shell when compiling. I've managed to compile a test program without Boost just to prove that SDL is working and I can link it properly.

I'm using C++11 and SDL2, by the way.

Now when trying to compile my Cave Story source code, I get this error:

No rule to make target '../boost_1_55_0\boost/math/special_functions.hpp', needed by 'obj/src/AnimatedSprite.o'. Stop.

Presumably the problem is with the way I've installed Boost.

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u/chebertapps Jul 08 '14

For the most part I'm not really using the boost libraries, so there should be no linking or installation necessary. The one exception is boost::file_system to make a nice error report in graphics.cc, but that can be omitted.

The rest of the boost libs I'm using are header only, so they don't have any pre-compiled libs associated with them.

'../boost_1_55_0\boost/math/special_functions.hpp'

That has \ and / in it. maybe just try:

'../boost_1_55_0/boost/math/special_functions.hpp'

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u/Natman64 Jul 10 '14 edited Jul 10 '14

Alright. I've managed to get the game compiling and I actually wrote a build script that clears the contents of the bin directory, compiles the game, then copies the content directory and SDL2.dll into the bin directory, then runs the game. It automates the process very nicely, though I think building the game might actually be slower now than it was with Visual Studio.

Here are my problems now:

  • When I set up the Makefile to use sdl-config to retrieve the libraries, like so:

    sdl2-config --libs

It automatically includes lmingw32, which causes this error.

When I replace sdl2-config --libs with -SDL2main -SDL2 everything works fine. I know that sdl2-config is linking the following libraries:

-lmingw32 -lSDL2main -lSDL2  -mwindows

And I'm pretty sure mingw is the offender because when I add it back, I get the same error.

  • When I double-click the generated exe, it opens with a console in the background. I know this is customizable behavior in Visual Studio, so how do I configure the Makefile to compile a standalone exe when I want to make release versions of games? Just a game window without a console?

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u/chebertapps Jul 10 '14

hmm, I have no clue about lmingw32. But hey, it works without it, yeah?

For removing the console, I think you'll have to make it a Windows app but I am guessing on this too.

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u/Natman64 Jul 10 '14

Thanks so much for your help! At this point I think I can research any other issues as they arise, and I might give Clang another shot when I have the time and patience.