I used to have an older version of MinGW installed on my windows machine.
When I compiled my program under "Release" mode using the MinGW tool collection for build in NetBeans IDE, my executable was roughly 700KB.
Then, I recently installed the latest MinGW (mingw-get-inst-20120426.exe).
After the installation, I re-built my program and the executable is now 275KB and it doesn't seem to be reading the passed-in arguments correctly. The build is "BUILD SUCCESSFUL". It does have warnings for deprecation-related issues, but this existed before the new install.
I am really confused. Do you know what the problem is?
Thank you
Neo
WOW. It works now. I think removing C:\cygwin\bin from the PATH fixed the problem. Ahhh. Is that right? That's strange though because I specifically told NetBeans to use the MinGW toolset. Thanks for your help everyone.
in this case you did mix compilers. paths matter mate.
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 have just started to learn C++ for school, and I'm trying to download the compiler MinGW to compile my source code. However, every time I try to compile a program an error message shows up saying that zlib1.dll is missing.
This is the error message
the program can't start because zlib1.dll is missing from your computer
I have tried installing/re-installing with no luck. I don't know what's the problem here?
Can anyone please help me with this problem as I have some homework that I need to do but I can't without the compiler.
Thanks.
I had this same problem, but fixed it like this:
I ran the MinGW Installation Manager (e.g. C:\MinGW\libexec\mingw-get\guimain.exe).
I navigated to All Packages -> MinGW -> MinGW Libraries.
I checked the boxes next to mingw32-libz (dev & dll).
I went to Installation -> Apply Changes.
Now everything worked properly.
From the MinGW getting started; an automated GUI installer assistant, or use mingw-get, is available (installed as "MinGW Installation Manager") and can be used to install additional libraries and manage dependencies. For the missing zlib libraries, add the mingw32-libz libraries as required.
It seems to have been an issue previously here on super user. It seems you may be able to get them directly from the zlib website. Open Babel has some info on it being required to be copied afterwards (together with some other dlls).
Alternatives include using the mingw-w64 distros from nuwen or mingw-builds. I've never had any issue getting these up and going. They also support x64 builds.
Had same problem here, I've just used mingw-get install mingw32-libzat the cmd and it worked.
I installed Eclipse for C/C++ Developers.
After installing it I also installed PyDev.
I managed to create a C++ project (The Hello World project that comes with it). But I cannot compile/run it.
When I created the project there was nothing in the toolchain list. So I think I will need to install a toolchain. But I cannot find anything. I need someone to help me with this please.
I am using 64 bit Windows 7.
No compiler, no executable.
Check MinGW
This is one of the first results i got in google for eclipse and mingw:
http://max.berger.name/howto/cdt/cdt.jsp
You need to install not only Eclipse CDT, but also a C/C++ compiler for Windows, like minGW.
Try installing TDM-GCC from http://tdm-gcc.tdragon.net/ . This should have you up and going with a compatible GCC setup under Windows in a snap.
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
I've been trying to use CDT with Eclipse 3.4 under Windows XP with cygwin.
What do I need to do, in order to get startet?
I used "eclipse-cpp-ganymede-SR1-win32.zip" found on the Eclipse homepage.
Edit:
The main problem is, that I cannot compile and run the code.
In the run configuration, I tried gcc.exe for the C/C++ Application:
After adding the path of make.exe to my $Path, and starting from scratch, it works perfectly.
I finally found. Thanks guys.
After downloading and unpacking "eclipse-cpp-ganymede-SR1-win32.zip", you need to install either Cygwin or MinGW.
Make sure the compiler (e.g. gcc.exe) and make.exe is on your $Path.
Start Eclipse and everything should work fine.
If you want to use Eclipse/CDT on Windows, you should consider using Wascana Desktop Developer, a CDT distro specially targeting Windows hosts.
According the the CDT Downloads page:
As a minimum, you need to install the Eclipse Platform Runtime before installing the CDT
So adding the CDT Ganymede update site to your current eclipse 3.4 configuration should be enough for you to install CDT.
After that, do you have any error message ?
For instance, there can be some eclipse.ini-related issues when using this package.
For me the package you downloaded worked from start. However I was using it with MinGW instead of Cygwin.
I am using it also for QT4 development together with QT Integrator.
I use MinGW, though I note that the documentation says you can use Cygwin. I would have a look through Max Berger's CDT guide to troubleshoot the problem.
you can install both Cygwin and MinGW in your system. gcc and make available with Mingw seems to be suitable better for native windows build. If the PATH environment is set to paths of Cygwin [and/or] MinGW Eclipse project wizard asks you select one . Either Cygwin or MinGW.
For MingW, you may need to download gdb as well, if you need to debug your application