I have a problem when I tried to install SFML on Codeblocks. Well, first I install codeblocks: codeblocks-20.03mingw-setup.exe . That's compile correctly after that I download SFML 2.5.1: GCC 5.1.0 TDM (SJLJ) - Code::Blocks - 32-bit.
Following, I extract the SFML file.The problem comes I COPY THE CONTENT OF "BIN" INSIDE OF MY CODEBLOCKS PROJECT. A video helps me to do all of before, I WROTE ALL THE LIBRARIES: GRAPHICS, WINDOW, NETWORK, AUDIO, SYSTEM BUT NOTHING. I show you the error:
cannot find -lsfml-audio-d-2
And continue with network, window,system, graphics
At the ends:
error: ld returned 1 exit status
what's wrong? help me please. I have to make a video game using CODEBLOCKS as soon as I fixed this problem. I'll so thankful for your answers.
On the SFML download website (https://www.sfml-dev.org/download/sfml/2.5.1/), it says:
The compiler versions have to match 100%!
The CodeBlocks 20.03 MinGW installation includes version 8.1.0 of the GCC compiler (as is stated on the download page: http://www.codeblocks.org/downloads/26).
Your downloaded version of SFML thus is only intended to work with version 5.1.0 of GCC, but you have version 8.1.0. This can result in a number of errors.
There are a few possibilities to fix your issue:
You could theoretically compile SFML yourself with your specific compiler, but this option may be quite complicated.
You could use a compiler with the matching version. On the SFML download website, there are some links to the needed compilers. After having installed a compiler, you will have to configure CodeBlocks to detect the new compiler on your system (reference: Adding compiler to code::blocks). Now, in order to add SFML to your project, I would suggest to use this official guide:
https://www.sfml-dev.org/tutorials/2.5/start-cb.php
You could use an environment like MSYS2 (which I use personally) to have a package manager to manage your compiler and libraries installations. This way, your compiler installation and your libraries should work with each other. But in order to use this compiler in CodeBlocks, CodeBlocks would have to be configured.
I would suggest that you refer to option 2 because it probably is the quickest solution.
Feel free to ask if you have any more questions. I know from personal experience that setting up SFML (or any other C++ library) to work with your IDE may be quite tricky.
Related
So I just recently downloaded a C++ IDE called Code::Blocks and made a new project. But when I tried to Build and Run it, the code gave some errors. I know that it isn't a problem with syntax or anything like that because I ran the default code that Code::Blocks provided. The error is the following:
Project/Target: "firstcpp - Debug":
The compiler's setup (GNU GCC Compiler) is invalid, so Code::Blocks cannot find/run the compiler.
Probably the toolchain path within the compiler options is not setup correctly?!
Do you have a compiler installed?
Goto "Settings->Compiler...->Global compiler settings->GNU GCC Compiler->Toolchain executables" and fix the compiler's setup.
Tried to run compiler executable 'C:\MinGW/bin/gcc.exe', but failed!
Skipping...
Nothing to be done (all items are up-to-date).
It seems to me like there is some kind of issue with the C++ compiler, but I thought Code::Blocks already came with a C++ compiler, so I'm not too sure what the issue here. I also followed their instructions to go to Settings->Compiler...->Global compiler settings->GNU GCC Compiler->Toolchain executables, but I'm not too sure what they mean by fix the compiler. Here is a screenshot of what I'm seeing:
Also here's info on my PC if you need it:
At this point I'm not too sure what to do to fix this problem. I have asked my friends about this problem(they have already successfully downloaded and used Code::Blocks), and they said that they never encountered this problem while they were installing it.
You need to ensure that you have a working installation of the GNU Compiler Collection, and that the paths you select for your toolchain exist.
If you don't already have GCC Installed, the easiest way would be to download a Code::Blocks distribution that comes pre-bundled with MinGW from the download site. However, it's also possible for you to install GCC through other means, such as:
Installing GCC with MinGW through msys2, or
Installing GCC with scoop install gcc on Windows
In either case, you need to select the installation path that contains the bin directory when setting up the toolchain in Code::Blocks.
In case you didn't notice, C::B formed the path to compiler with both "\" back slashes and "/" slashes, which simply isn't a valid Windows path !!
Slashes are used in Linux not Windows! But for some reason C::B is not getting this. And probably your Mingw is well set !!
C:\MinGW/bin/gcc.exe should be C:\MinGW\bin\gcc.exe
I had pretty hard time trying to fix this in win 7 32 bit/C::B version 20.03 but with no success, i checked all available options and settings, and actually i started to think that it's a bug.
I'm not using bloodshed dev c++ , instead I'm using orwell dev c++ , I got Allegro 5 and installed the package (as a .zip file) but it says 'allegro5/allegro.h: No such file or directory'. Maybe I'm using the wrong type of header or is it another problem?Thanks!
That means you did not install the Allegro files in the correct place. I´m not familiar with the GCC Toolchain that Orwell uses (Im a Visual Studio guy), but what you need to do is place them on a place where the compiler can find them. Then make a makefile with the instructions on how to build this program with the correct Allegro libraries linked.
Here is the wiki article for installation on Code::Blocks, Maybe it can help you installing on DevC++, however, I think the binaries listed here might be newer than the ones on the Allegro's wiki page.
Preamble
If anything I wrote is not correct, please be so kind and correct me. I am a php developer mainly - I am not into this compiling stuff. I know there are a lot of topics around the www but they seems to be either old/outdated, very complex or links to a bunch of files on sourceforge (I have no clue what files I should download and what to do with them after downloading them).
Searching a couple of days by now
I am researching for a couple of days by now and tried different compilers and settings but I don't get a standalone executable for a c++14 programme.
First compiler
The first compiler I used was cygwin. I was able to compile it with c++14 but on other computers cygwin had to be installed as well as a cygwin dll was missing. I googled and figured out that programmes compiled using Cygwin requires this dll but cannot be included to the programme itself - or did I missed something?
Current compiler
I then switched to MinGW which seems to be a better choice as it allows to compile standalone executables which is correct as I am able to do so. Well, the MinGW setup I downloaded from http://www.mingw.org/ installed among other the gcc version 4.8.1. I need 4.9.1 for c++14.
As the title says I want to configure it in Netbeans but if there is a proper tutorial for a command line compiling it's no problem either but I try to avoid using another IDE as we use it at work, too.
drangon.org
I also heard about http://www.drangon.org/mingw/ but there are tons of links linking to similiar stuff.
My goals
Get a better understanding about gcc and this compiling stuff in general.
Install gcc 4.9.1 (preferred into MinGW as it's currently installed)
Configure it in Netbeans 8.
I suggest you to try MinGW-w64. (Download.)
It's similar to MinGW, but have better multitreading support, can easily compile x64 applications, and what's more important, at this moment it uses GCC 4.9.2.
By the way, MinGW applications require some .dlls to work too. Usually you just provide these libraries with your application, but another option is to add -static flag at linking phase. Applications that are compiled with it do not require any external library files (unless you're using 3rd party libraries that don't support static linking).
I am trying to build and use a piece of C++ code that uses OpenCV. I am working on Linux, working in Code::Blocks (and the code was originally also developed on a Linux platform using C::B).
I followed this to install OpenCV (Ubuntu 12.04 & OpenCV 2.4.3). The project compiles fine, but when I try to execute it, it crashes on launch, with the following message about how it can not find the library:
(file_address): error while loading shared libraries: libopencv_core.so.2.3:
cannot open shared object file: No such file or directory
Process returned 127 (0x7F) execution time : 0.017 s Press ENTER to continue.
I set all the parameters for the linker according to several Code::Blocks install tutorials.
I also checked in /usr/local/lib/ for my libraries (it is the folder I gave to Code::Blocks' compiler); and while I do have a libopencv_core.so, a libopencv_core.so.2.4 and a libopencv_core.2.4.3, I do not have a libopencv_core.so.2.3.
So I'm wondering what the issue is. Is it about backwards compatibility, i.e. do I have to install the exact same version of OpenCV used to develop the original code? (This would be a bit concerning, since I am trying to make a widely-usable library).
Could I force it to use libopencv_core.so.2.4 instead?
EDIT: I managed to make it work by removing everything and reinstalling with a simple apt-get. Sometimes it's the simplest method that works the best! From now on I'll try to apt-get before following installation tutorials. ;)
Have a nice day!
I'm trying to get eclipse to work with MinGW.
I've done the following:
Downloaded CDT for eclipse.
Installed MinGW.
Added C:\MinGW\bin to my path.
Opening a command prompt (CMD) and typing g++ or alike works fine.
I run eclipse, create a "New C++ Project", and only get the option saying "other toolchains".
There's a MILLION tutorials out there saying eclipse should identify MinGW on its own. It doesn't, and I don't know what to do. I've tried reinstalling everying in just about every order posible. Still no luck.
I've also noted some tutorials say something about creating a "Managed C++ Project". I've no such option, all I get is "C++ Project" and "C Project"
edit:
I have eclipse ganymede, windows x86_64, version 3.4.2
http://download.eclipse.org/eclipse/downloads/drops/R-3.4.2-200902111700/index.php
Running the "Eclipse IDE for C/C++ developers" fails, since there's no x64 version for windows. The x86 version requires x86 JAVA installed as well, and installing two versions of java, gave nothing but trouble in the past.
The instructions for setting up MinGW in Ganymede are located here.
The following are instructions and
links on how to install the current
version of MinGW. Note that these
links may become inaccurate over time
as new versions of MinGW components
are introduced. Please check the MinGW
File Release section for the latest
versions.
Download and run the MinGW setup program, MinGW-5.1.3.exe.
Select download and install the MinGW base tools and the g++ compiler.
You may select the Current or
Candidate version of these tools. You
may also install any of the other
available compilers as well.
Do not install the MinGW Make feature as the MSYS version of make
from step 5 is a more complete
implementation of make.
The MinGW setup program currently does not install the gdb
debugger. To install the debugger,
download the file from the following
location: gdb-6.6.tar.bz2
Extract the contents of the file gdb-6.6.tar.bz2 to the same location
where you installed MinGW.
If you want to use Makefile projects, download and run the setup
program from the following location:
MSYS-1.0.10.exe. MSYS provides an
implementation of make and related
command line tools. This is not
required for other types of projects
with the MinGW toolchain, which use
CDT's internal build tools to perform
the build.
Following this process resolved any problems I had.
I had the same exact problem with Eclipse Galileo and CDT 6.0.1. It turns out that CDT only recognized MinGW when it's located under c:\mingw. I had it in c:\msys\mingw so that was the problem. After I changed that everything worked fine.
The distinction between managed make projects and makefile project was removed in CDT 4.x, I think. Now there is only one type of project, but you can select different builders. CDT includes an internal builder which does not use makefiles and another one which does.
First, save yourself the effort of "reinstalling in every order possible". That is also known as trial-and-error, and will only make you more frustrated. Apply the normal problem-solving skills you have as a programmer.
Given that you have MinGW installed, what happens if you download "Eclipse IDE for C/C++ developers", start eclipse.exe, and try to create a C++-project with a MinGW toolchain?
EDIT: remember: the key in getting help with problems like these is to produce a minimal example which fails. Also, it would help if you provided URLs to the packages you installed (MinGW, Eclipse, etc.).
EDIT: I just installed CDT using the Ganymede update site, downloaded and installed MinGW from here, and restarted Eclipse, and everything worked fine. I know that doesn't help you, but it does prove that the toolchain detection isn't completely broken. Something is weird on your side.
You could try Wascana Desktop Developer. Its a distribution of Eclipse CDT configured specifically for developing on Windows.
I had the same problem (i.e. Eclipse not finding MinGW on the PATH) after I removed some of the unused files/folders from MinGW. It was ~600 MB and I was tasked to trim it down before adding to source control. I got it down to a workable ~200 MB. When I tried to re-create an Eclipse workspace afterwards, MinGW disappeared from available toolchains. It reappeared after I put the original MinGW install on the path.
HTH