Cross compiling under Ubuntu 20 failed (versions >= 0.3.22)

[Jakkwj]

When cross compiling in Ubuntu 20, my make command is:

make BINARY=64 HOSTCC=gcc CC=x86_64-w64-mingw32-gcc FC=x86_64-w64-mingw32-gfortran

This step completes normally without errors and generates libopenblas_haswellp-r0.3.30.so.

However, when I run:

sudo make PREFIX=/usr/local/OpenBLAS_mingw install

it throws an error: "libopenblas_haswellp-r0.3.30.so': File status (stat) could not be obtained: No such file or directory."
The root directory has generated 'libopenblas_haswellp-r0.3.30.a' but has not generated 'libopenblas_haswellp-r0.3.30.so'.

Actually, this issue exists from versions 0.3.22 to 0.3.30. (Versions before 0.3.22 compile normally)

[martin-frbg]

Installation should work if you repeat the HOSTCC and ther arguments that you used in the build step, like
sudo make BINARY=64 HOSTCC=gcc CC=x86_64-w64-mingw32-gcc FC=x86_64-w64-mingw32-gfortran PREFIX=/usr/local/OpenBLAS_mingw install - without them, the build system will attempt a native Linux build and get confused

[Jakkwj]

Installation should work if you repeat the HOSTCC and ther arguments that you used in the build step, like sudo make BINARY=64 HOSTCC=gcc CC=x86_64-w64-mingw32-gcc FC=x86_64-w64-mingw32-gfortran PREFIX=/usr/local/OpenBLAS_mingw install - without them, the build system will attempt a native Linux build and get confused

Thank you so much, this works for me!!