RFR: 8313396: Portable implementation of FORBID_C_FUNCTION and ALLOW_C_FUNCTION [v4]

[Kim Barrett]

On Wed, 8 Jan 2025 04:24:46 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

> I filed an enhancement to remove the use of ::strdup. https://bugs.openjdk.org/browse/JDK-8347157

Per discussion in that bug, it's been closed as not an issue, and I'm changing the code here to add and use the
permit wrapper for strdup.

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PR Comment: https://git.openjdk.org/jdk/pull/22890#issuecomment-2579311852