Configure fails if no Fortran compiler present #13257
Description
Thank you for taking the time to submit an issue!
Background information
What version of Open MPI are you using? (e.g., v4.1.6, v5.0.1, git branch name and hash, etc.)
Head of v5.0 branch with updated PRRTE submodule
Describe how Open MPI was installed (e.g., from a source/distribution tarball, from a git clone, from an operating system distribution package, etc.)
Git clone
If you are building/installing from a git clone, please copy-n-paste the output from git submodule status.
907b1ccaeec61a1197f0ee5264d4fef20b257b84 3rd-party/openpmix (v5.0.8)
b9495979aab452dc935504d9884a1202166da91f 3rd-party/prrte (v3.0.10-2-gb9495979aa)
dfff67569fb72dbf8d73a1dcf74d091dad93f71b config/oac (remotes/origin/HEAD)
Please describe the system on which you are running
- Operating system/version: Rocky 9
- Computer hardware: container
- Network type: TCP
Details of the problem
Container does not include a Fortran compiler. Vanilla configure line fails with following error in config.log:
$ ./configure --prefix=/opt/hpc/external/ompi --enable-mpirun-prefix-by-default --enable-debug
...
configure:28534: WARNING: *** All Fortran MPI bindings disabled (could not find compiler)
configure:28655: checking for warnings flags
configure:28670: result: none
configure:29224: checking to see if mpifort compiler needs additional linker flags
configure:29538: result: none
configure:29617: checking alignment of Fortran common
configure:29642: -o conftest -g -L/lib conftest.f >&5
./configure: line 4269: -o: command not found
configure:29642: $? = 127
configure: failed program was:
| program falignment
| CHARACTER A,B
| COMMON /AA/A
| COMMON /BB/B
| OPEN(UNIT=10, FILE="conftestval")
| if (LOC(A) > LOC(B)) then
| write (10,'(I5)') LOC(A)-LOC(B)
| else
| write (10,'(I5)') LOC(B)-LOC(A)
| endif
| CLOSE(10)
|
| end program
configure:29659: WARNING: Could not determine common alignment
configure:29661: WARNING: See config.log for details
configure:29663: error: Cannot continue