I have an ongoing Pi Pico -W project. Built using the C SDK
It has built successfully before but I haven't touched the files since
March.

Yesterday I needed to modify the code.

It wouldn't build. Complained about a missing header file at a location
that contained that header file.

I emptied the build directory and ran Cmake.

That completed, but make failed again with a different error.

I then ran cmake again and this time the file built successfully.

I mean as with most things cmake one expects irrational behaviour but seriously?


--
"It was a lot more fun being 20 in the 70's that it is being 70 in the 20's" Joew Walsh

--- PyGate Linux v1.0
* Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)

On Wed, 15 Oct 2025 11:54:22 +0100, The Natural Philosopher wrote:

It wouldn't build. Complained about a missing header file at a location
that contained that header file.

It helps to copy and paste the actual error message sequence. Remember the saying ?many eyes make all bugs shallow?.

I emptied the build directory and ran Cmake.

That completed, but make failed again with a different error.

Which was ... ?

I then ran cmake again and this time the file built successfully.

I mean as with most things cmake one expects irrational behaviour but seriously?

Somehow I don?t think you ran it quite the same way each time ...

--- PyGate Linux v1.0
* Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)