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About c++ : libstdc-6dll-not-found

Question Detail

I have been working on a project (a game to be specific) and I feel that I should start over with different libraries. So when doing this I reinstalled Code::Blocks and setup my new libraries and includes.

But as of now Im having a problem starting u[ my new project to test if all of the includes work. This problem is: libstdc++-6.dll was not found. At first i wondered if I could just find this file online, but its nowhere to be found(or at least the many places I have searched…) Soon after, I tried loading up my old project, and the same problem happened again(wierd… ._.) I was thinking its maybe my compiler, so I used my older compiler and it did the same thing! At this moment I held the problem off for tomorrow(which is today)

So my question is: If anyone else had this problem, how would you solve it?

Im using Code::Blocks with MinGW as the compiler on Windows Vista 32 bit.

*****EDIT*****

Here are the Build options in my project. Note that these are the settings in the Project, not the global compiler:

In (project name)->Compiler settings->Otehr options:

(I use // to seperate the commands)

-mthreads//
-fmessage-length=0//
-fexceptions//
-fident//

In (project name)->Compiler settings->#define:

WIN32//
_WINDOWS//

In (project name)->Linker settings->Other linker options:

-static-libstdc++//
-static-libgcc//
-Wl,--enable-auto-image-base//
-Wl,--add-stdcall-alias//
-Wl,--enable-auto-import//

In linker->link libraries i have various links to files with a .a extension, these files include Bullet PHysics, Ogre3D, and SFML

In the search directories i have links to the MinGW/bin, and the MinGW/lib directories, along with other links to different libraries.

My Compiler is MinGW, a GNU GCC compiler for windows 32 bit. and the IDE is Codeblocks. Also note that in Debug and Release settings on the project, there is nothing.

Most of these setings are also pieces that i got from the Ogre3D Application setup tutorial if that is of any help.

Question Answer

If you are using MingW to compile C++ code on Windows, you may like to add the options -static-libgcc and -static-libstdc++ to link the C and C++ standard libraries statically and thus remove the need to carry around any separate copies of those. Version management of libraries is a pain in Windows, so I’ve found this approach the quickest and cleanest solution to creating Windows binaries.

As far as I know, this is the C++ Runtime Library. So it depends on the compiler you use to create your program (A new version will include some C++0x stuff, an older version will probably not for instance. It depends of the compiler and of its version).

If you use MinGW then you should use the libstdc++-6.dll found into the folder of this compiler. MinGW/bin folder should be the place to search for it on your computer.

If you copy this file in the same directory as your executable, it should be OK.

Simply removing libstdc++-6.dll.a \ libstdc++.dll.a from the mingw directory fixes this.

I tried using the flag -static-libstdc++ but this did not work for me.
I found the solution in: http://ghc.haskell.org/trac/ghc/ticket/4468#

This error also occurred when I compiled with MinGW using gcc with the following options:
-lstdc++ -lm, rather than g++

I did not notice these options, and added: -static-libgcc -static-libstdc++

I still got the error, and finally realized I was using gcc, and changed the compiler to g++ and removed -stdc++ and -lm, and everything linked fine.

(I was using LINK.c rather than LINK.cpp… use make -pn | less to see what everything does!)

I don’t know why the previous author was using gcc with -stdc++. I don’t see any reason not to use g++ which will link with stdc++ automatically… and as far as I know, provide other benefits (it is the c++ compiler after all).

useful to windows users who use eclipse for c/c++ but run *.exe file and get an error: “missing libstdc++6.dll”

4 ways to solve it

  1. Eclipse ->”Project” -> “Properties” -> “C/C++ Build” -> “Settings” -> “Tool Settings” -> “MinGW C++ Linker” -> “Misscellaneous” -> “Linker flags” (add ‘-static’ to it)

  2. Add ‘{{the path where your MinGW was installed}}/bin’ to current user environment variable – “Path” in Windows, then reboot eclipse, and finally recompile.

  3. Add ‘{{the path where your MinGW was installed}}/bin’ to Windows environment variable – “Path”, then reboot eclipse, and finally recompile.

  4. Copy the file “libstdc++-6.dll” to the path where the *.exe file is running, then rerun. (this is not a good way)

Note: the file “libstdc++-6.dll” is in the folder ‘{{the path where your MinGW was installed}}/bin’

I use Eclipse under Fedora 20 with MinGW for cross compile.
Use these settings and the program won’t ask for libstdc++-6.dll any more.

Project type – Cross GCC

Cross Settings

  • Prefix: x86_64-w64-mingw32-
  • Path: /usr/bin

Cross GCC Compiler

  • Command: gcc

  • All Options:
    -I/usr/x86_64-w64-mingw32/sys-root/mingw/include -O3
    -Wall -c -fmessage-length=0

  • Includes: /usr/x86_64-w64-mingw32/sys-root/mingw/include

Cross G++ Compiler

  • Command: g++

  • All Options: -I/usr/x86_64-w64-mingw32/sys-root/mingw/include -O3
    -Wall -c -fmessage-length=0

  • Includes: /usr/x86_64-w64-mingw32/sys-root/mingw/include

Cross G++ Linker

  • Command: g++ -static-libstdc++ -static-libgcc

  • All Options: -L/usr/x86_64-w64-mingw32/sys-root/mingw/lib -L/usr/x86_64-w64-mingw32/sys-root/mingw/bin

  • Library search path (-L):

    /usr/x86_64-w64-mingw32/sys-root/mingw/lib

    /usr/x86_64-w64-mingw32/sys-root/mingw/bin

I just had this issue.. I just added the MinGW\bin directory to the path environment variable, and it solved the issue.

I placed the libstdc++-6.dll file in the same folder where exe file is generated.

You only need to add your “mingw-install-directory”/bin/ to your Path in your System environment variables … that’s it !!

I had same problem. i fixed it. i was using Codeblocks and i save my .cpp file on desktop instead of saving it in Codeblocks file where MinGW is located. So i copied all dll files from MinGW>>bin folder to where my .cpp file was saved.

You can also copy the dll files in the directory of your exe file

I had this problem too. I was compiling in command prompt and used the flag -static.
My command before:
“g++ test.cpp -o test.exe”
and afterwards:
“g++ test.cpp -o test.exe -static”

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