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c++ program compile with LAPACK library


By : user2175182
Date : October 16 2020, 08:10 AM
it helps some times It sounds like your system isn't set up to search /usr/local/lib for libraries.
You can add -L/usr/local/lib to your compile command.
code :


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How to compile a c++ program into shared library, and load it from a c program?


By : Charles Bronson
Date : March 29 2020, 07:55 AM
should help you out You must declare your function to be useable in C:
code :
extern "C" void foo(int x, char y);

Cross-compile Fortran library from Linux to Windows using CMake including Lapack


By : Rohit Kulkarni
Date : March 29 2020, 07:55 AM
Does that help Well this took forever, and the solution was embarrassingly easy...
Apparently all I needed to do was put the .dll files alongside the executable in the same directory. I just copied over the following .dlls to my windows machine and now it works fine. These are the files I needed to copy over:
code :
/path/to/windows/drive/
├── libblas.dll
├── libgcc_s_seh-1.dll
├── libgfortran-4.dll
├── liblapack.dll
├── libquadmath-0.dll
├── libwinpthread-1.dll
└── main.exe

Error: Lapack library not found in compile time (zerobrane, lua, torch)


By : Zidane
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further After research I found: , This is the necessary change:
code :
make NO_AFFINITY=1 USE_OPENMP=0 USE_THREAD=0

Cannot Compile C Program That Uses a Library (FFmpeg) with GCC Because of the Library's Include Statements


By : Kazuya Hoshi
Date : March 29 2020, 07:55 AM
To fix the issue you can do When #include is used with quotation marks (e.g. #include "file path here"), it will read that file path as a relative file path.
In the case of compiling a C program using GCC, file paths are relative to the current directory. The "current directory" is the one into which you have placed your command prompt using the cd command.
code :
#include "libavutil/samplefmt.h"
#include C:/Users/User/Documents/Test/libavutil/samplefmt.h
gcc -c test.c
gcc -IC:\Users\User\Documents\Test\FFmpeg -c test.c
gcc -IFFmpeg -c test.c

compile linux program (OpenMX) for windows with MinGw platform and libraries such as MPICH,fftw lapack and BLAS?


By : Nik Lab
Date : March 29 2020, 07:55 AM
may help you . OK. Couple things:
mpicc/mpif90 are wrappers, which add proper compile / link flags. there is no need for them to be available to build programs. MinGW used to be the way to go on Windows in my view. Nowadays, I'd invest the energy in setting up CMake for the project and actually build with VisualStudio. If you want to use gcc etc for building, that's totally fine, but I would not use MinGW, but do cross compilation on Linux. That's truly a time saver. The configure scripts need sometimes 10 times longer or more to finish under MinGW that when cross compiling with Linux.
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