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Mailing lists / fpc-devel / 2026-09

Internal error 4179

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Il Grande Beppe

Hello All,

I'm currently on Ubuntu on a AMD64 system. Compiling something with 3.2.2, I got an Internal Error 4179. I removed 3.2.2 and installed 3.2.4-rc2. I again get this error. What does it meen ? How to avoid it ?

3.2.4.rc2 on the same machine but under win11 do not raise this error with the same compilation task.

Cheers, Raoul

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Karoly Balogh
to Il Grande Beppe

Hello,

Il Grande Beppe wrote 7 lines
I'm currently on Ubuntu on a AMD64 system. Compiling something with 3.2.2, I got an Internal Error 4179. I removed 3.2.2 and installed 3.2.4-rc2. I again get this error. What does it meen ? How to avoid it ? 3.2.4.rc2 on the same machine but under win11 do not raise this error with the same compilation task.

As the name suggests, it's an internal compiler error, that shouldn't happen. The compiler's internal state became inconsistent. The internal error is related to char to string type conversion.

Can you provide a code snipet that reproduces the error? Or at least the code and the types involved at the line location where the error occurs?

Charlie

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