i have gcc installed on my linux machine and i have my xcode project on my linux machine.
now is there anyway i can generate a xcodebuild using gcc on linux machine?
Very unlikely - the project file is designed for the sole use of Xcode and its command line friends. You are better off creating a Makefile for use under Non-Mac systems; this will be much quicker that trying to determine how the Xcode project file is structured and how to use the information contained within it.
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Is it possible to cross-compile a program targeting a Cygwin environment from a Linux/Unix host? I'm mostly trying to avoid using a Windows WM for building a collection of programs.
From the website:
Cygwin is not:
a way to run native Linux apps on Windows. You must rebuild your application from source if you want it to run on Windows.
mingw-w64 is not enough, I need a full POSIX platform. I'm also wondering if it's possible to target MSYS2.
Perhaps I'm not understanding correctly, and one doesn't need to compile in Cygwin but only mingw-w64 is necessary.
Thanks!
It is possible to compile for Cygwin from Linux.
The cygwin1.dll itself is built in such way.
Packages/libraries are available at:
https://copr.fedorainfracloud.org/coprs/yselkowitz/cygwin/
Of course only a minimal set of tools/libraries is available
I have been wonder about why x86(windows) to arm(linux) cross compile is possible but x86(windows) to x86(linux) cross compile is impossible or difficult only can use cygwin
As below link there is some cross-compiler for windows to arm from personal pc(x86), but there is no cross-compiler x86 to x86.
http://gnutoolchains.com/beaglebone/
why window(x86) to Debian(ARM) is available without cygwin , but window to Debian(x86) is difficult or must use cygwin?
Is this issue caused by POSIX size problem? The library size of Debian in ARM is little bit smaller than x86 ones?
I confuse....
I want to anyone clear to me.
Thank you for reading.
I installed WSL and then Debian as an Windows-App
directly under my Windows10 Home Edition.
Now I can open a Linux command prompt in every directory I want.
Installed g++ with apt-get (changed to root with "sudo su").
Using Mingw64 command prompt from the Git-Bash I can even use the same shell script
to compile console apps as Linux and Windows executables!
I usually work on linux when i have a linux target but this time i must work from a Windows based computer and must keep all my work on Windows.
I tried with Code::blocks and GNUARM, the build has no problem but can't be runned on the target.
When using code sourcery G++ i can build with command a single .c file and it runs on my board.
When i try to put the sourcery g++ exécutables in a toolchain configuration in code::blocks the software seems to build with no error but is generating nothing...
Now i would like to go a step further an build a project, no more single files, and i don't seems to be able to find a solution to this problem.
Does anyone here has experience from this kind of situation ?
I finally got it to work, here is a little explanation on how i did it : first i installed the jdk and eclipse, the code sourcery g++ lite and finally the gnu arm Tools (not the gnu arm plugin). I then went into the toolchain configuration in eclipse and changed the Tools "cs-make" and "cs-rm" from code sourcery to the "make" and "rm" from the gnu arm Tools kit. I changed the format from c++11 to c++9 too and now i am generated a elf file which run on my board.
I am developing a software in C++ on windows 32-bit (using MSVC++), but since I want to be able to use my software on every platform, I have decided to use CMake as my build generator.
Therefore, I am still just a beginner in CMake. From the CMake tutorials, I understand that in order to cross compile codes, first a toolchain simulating the target platform should be installed on the host platform. Then using the appropriate target-platform C and C++ compilers provided by this toolchain, CMake would be able to generate makefiles etc.
Now, I want to build my code for Linux platform(GNU/Linux) on a Win32 platform. I tried doing the above procedure using CMake combined with Cygwin and using gcc and g++ as compilers. It built fine, created makefiles, and when I issued "make" in Cygwin terminal, the generated makefiles were "made". Now I have got an executable which I was hoping would run on Linux platform. But on Linux I get the error: bash cannot execute binary file.
Using command file executablename, I realized the executable which is made by the above procedure is of type PE32 which is only for Windows.
Now my question is: Is my understanding of cross-platform build procedure using cmake correct?Or should I just use another Linux toolchain under windows to get a Linux ELF executable? What toolchains come to your mind which would give me what I want?
Many thanks
Setareh
You will want to look here: cmake-toolchains(7) if you do cross compiling. However, I would suggest that you install a Linux VM like virtual box on your windows machine and build naively on Linux. It will compile much faster and you will not have to worry about cross compiling. You can mount the windows disk from the linux VM so you can share the same source tree. The linux VM will compile much faster than gcc running under windows.
Your understanding of CMake is correct... it will determine how to create the build system you request (or is default for the platform you are currently on) based on rules in your CMakeLists.txt file. However, this won't necessarily help you compile for linux on a windows machine if you don't have something installed that can target linux.
To compile targeting linux, you will need to use a linux compiler. The link posted by #stjin tells you how to install one on cygwin. Then, to set up your CMake build, do this in the terminal:
CC=gcc-linux CXX=g++-linux cmake . [options]
This will tell CMake to locate the special linux targeted compilers. Hopefuly, after compiling with these compilers you will be able to run on linux.
Will I have to use the crosstool that cygwin provides to make the libX11.so, libGL.so, and libGLU.so libraries using their respective source code? Or do you know where I can find them compiled already for crosstool (I'm new to this cross compilation)?
Just for clarification: I'm on a windows 7 machine trying to get my application also to compile for linux systems by using cygwin's cross compilation. The application uses OpenGL. Thanks
To cross-compile for Linux you should install the needed development libs and headers on a linux box[1] and then copy /usr/lib and /usr/include your cygwin environment (e.g. /crosscompiler/linux/...). When you build the cross compiler in cygwin, tell it where those native linux headers and libs are so they'll be used when you compile your app.
[1] If you're looking to run on a wide variety of linux boxes make sure you pick an older linux distro (e.g. Red Hat 9) to ensure your app doesn't have dependencies on very new glibc, etc..
Why do you want to use Cygwin?
There is instructions on the OpenGL Wiki about how to use OpenGL on Windows using MinGW.
MinGW use the same GNU tools that are available on Linux (GCC, GDB, GMAKE, etc.) but produce Windows native executables. So, you shouldn't have trouble compiling your source code on both platforms.
I just ended up building on a native Linux machine.