Add HAVE_MEMMOVE to ext/pcre #18862
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Add HAVE_MEMMOVE to ext/pcre #18862
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The pcre2 library still needs HAVE_MEMMOVE defined to use the system (C99 standard) memmove() function, otherwise emulation is used. On Windows, this is already enabled.
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To understand this a bit better: Here otherwise, there already was HAVE_MEMMOVE added in PHP-8.4. In PHP-8.3 it is added via php_config.h. And it was then removed in PHP-8.4 because of a bad merge commit for some feature request of those -Wno... flags check... I have no idea how I missed that and why it didn't get added at the merge. |
nielsdos
approved these changes
Jun 19, 2025
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The pcre2 library still needs HAVE_MEMMOVE defined to use the system (C99 standard) memmove() function, otherwise emulation is used. On Windows, this is already enabled.
I think emulation sounds worse than using system in this case, so probably should be added. But someone who understands this better should confirm.