Description of problem:
Apologies that this is against llvm-toolset, but I tried to find the right component via the interface and couldn't, so this seemed like the closest one. The actual component is gcc-toolset-14 (and gcc-toolset-15).

Below is a sample Fortran program that uses nested functions (which require trampolines):

```
module algorithm

    public :: algorithm_with_nested_function

    abstract interface

    subroutine OBJ()
    end subroutine OBJ

    end interface
    
    contains
    
    subroutine algorithm_with_nested_function()
        call nested_function()
        call evaluate(nested_function)
        contains
        
        subroutine nested_function()
            print *, "nested function"
        end subroutine nested_function
    
    end subroutine algorithm_with_nested_function

    subroutine evaluate(a_nested_function)
        procedure(OBJ) :: a_nested_function
        call a_nested_function()
    end subroutine evaluate
    
end module algorithm


program hello

use algorithm, only : algorithm_with_nested_function

call algorithm_with_nested_function()
print *, "DONE"

end program hello
```

Running `gfortran -ftrampoline-impl=heap file.f90` leads to the following error (note that this compiler option is new as of gfortran v14):

```
/opt/rh/gcc-toolset-14/root/usr/libexec/gcc/aarch64-redhat-linux/14/ld: /tmp/ccJ5xEMc.o: in function `__algorithm_MOD_algorithm_with_nested_function':
main.f90:(.text+0xb0): undefined reference to `__gcc_nested_func_ptr_created'
/opt/rh/gcc-toolset-14/root/usr/libexec/gcc/aarch64-redhat-linux/14/ld: main.f90:(.text+0xc8): undefined reference to `__gcc_nested_func_ptr_deleted'
```

Adding `-lgcc_eh` at the end makes the error go away and the program compiles and runs fine. It seems to me that the user shouldn't have to add -lgcc_eh at the end, the toolchain should figure this out, no?


Version-Release number of selected component (if applicable):


How reproducible:
Very


Steps to Reproduce:
1. Run redhat/ubi9 docker image
2. Create the above file as file.f90
3. dnf install -y gcc-toolset-14
4. scl enable gcc-toolset-14 bash
5. gfortran -ftrampoline-impl=heap file.f90
6. Observe the error
7. gfortran -ftrampoline-impl=heap file.f90 -lgcc_eh
8. Observe that it works

Actual results:


Expected results:


Additional info:
If this isn't the right place to report this please let me know and I'll try to find the right place to report it.