Description of problem:
Package openmeeg fails to build from source in Fedora Rawhide.

In file included from /builddir/build/BUILD/openmeeg-2.4.2/OpenMEEGMaths/include/OpenMEEGMathsConfig.h:81,
                 from /builddir/build/BUILD/openmeeg-2.4.2/OpenMEEGMaths/include/RC.H:5,
                 from /builddir/build/BUILD/openmeeg-2.4.2/OpenMEEGMaths/src/utils.cpp:40:
/builddir/build/BUILD/openmeeg-2.4.2/OpenMEEGMaths/include/BlasLapackImplementations/OpenMEEGMathsBlasLapackConfig.h:3:10: fatal error: fortran_mangle.h: No such file or directory
    3 | #include <fortran_mangle.h>
      |          ^~~~~~~~~~~~~~~~~~
compilation terminated.
make[2]: *** [OpenMEEGMaths/CMakeFiles/OpenMEEGMaths.dir/build.make:79: OpenMEEGMaths/CMakeFiles/OpenMEEGMaths.dir/src/utils.cpp.o] Error 1
make[2]: Leaving directory '/builddir/build/BUILD/openmeeg-2.4.2/build'
make[1]: *** [CMakeFiles/Makefile2:338: OpenMEEGMaths/CMakeFiles/OpenMEEGMaths.dir/all] Error 2
make[1]: Leaving directory '/builddir/build/BUILD/openmeeg-2.4.2/build'
make: *** [Makefile:149: all] Error 2

Version-Release number of selected component (if applicable):
2.4.2-0.18.fc36

Steps to Reproduce:
koji build --scratch f37 openmeeg-2.4.2-0.18.fc36.src.rpm

Additional info:
This package is tracked by Koschei. See:
https://koschei.fedoraproject.org/package/openmeeg

Dependency changes from last successful build:
https://koschei.fedoraproject.org/build/12206220