flang-19: omp_lib support is missing

[loudove]

Compile the sample code in omp.f90 gives the error. It seems that the omp_lib.mod and relevant files are missing from the distribution (are presents in flang-18). Tested on macos 12.7.6 - MacBook Air (M1, 2020).

1) create the test file: cat <<EOT >> omp.f90 program omp

use omp_lib implicit none

!$omp parallel

print *, 'Hello from thread ', omp_get_thread_num()

!$omp end parallel

end program omp EOT

2) compile with: flang-mp-19 -fopenmp -o omp omp.f90

3) compiler output: error: Semantic errors in omp.f90 ./omp.f90:2:9: error: Cannot read module file for module 'omp_lib': Source file 'omp_lib.mod' was not found

use omp_lib

./omp.f90:6:40: error: No explicit type declared for 'omp_get_thread_num'

print *, 'Hello from thread ', omp_get_thread_num()