I see this is change was done at
https://gitlab.com/petsc/petsc/-/merge_requests/5268
Likely due to errors with cray compilers.
So I guess we could add in __clang__ as you suggest. Can you create an MR with
this change?
And probably the same fix for src/sys/objects/pinit.c ?
Satish
On Thu, 22 Sep 2022, Aagaard, Brad T via petsc-dev wrote:
> Satish,
>
> I used to be able to get symbol names using clang (macOS) and this still
> works, but I need to edit the defines in dlimpl.c because __USE_GNU is not
> defined. Is there a reason why the current code is limited to __USE_GNU and
> doesn’t allow broader use when it works?
>
> Here is the change I made to my local version to allow symbol names.
>
> diff --git a/src/sys/dll/dlimpl.c b/src/sys/dll/dlimpl.c
> index 5bd68aa5a33..ded4ce5adbb 100644
> --- a/src/sys/dll/dlimpl.c
> +++ b/src/sys/dll/dlimpl.c
> @@ -323,7 +323,7 @@ PetscErrorCode PetscDLAddr(void (*func)(void), char
> **name) {
> PetscFunctionBegin;
> PetscValidPointer(name, 2);
> *name = NULL;
> -#if defined(PETSC_HAVE_DLADDR) && defined(__USE_GNU)
> +#if defined(PETSC_HAVE_DLADDR) && (defined(__USE_GNU) || defined(__clang__))
> dlerror(); /* clear any previous error */
> {
> Dl_info info;
>
>
> Thanks,
> Brad
>
>
