On Tue, 6 Apr 2021, Florian Klämpfl via fpc-devel wrote:



Am 06.04.2021 um 07:37 schrieb Sven Barth via fpc-devel 
<fpc-devel@lists.freepascal.org>:

Am 05.04.2021 um 20:33 schrieb J. Gareth Moreton via fpc-devel:
Hi everyone,

I have a slightly annoying error when building the compiler for i386-win32.  I 
mentioned it to Sven a while ago, and the cause is due to the fact that my copy 
of common.dll is 64-bit, not 32-bit (as Sven confirmed for me).

Compiling .\oracle\src\oraoci.pp
oraoci.pp(1437) Error: Invalid DLL C:\WINDOWS\system32\common.dll, invalid 
header size
oraoci.pp(1437) Fatal: There were 1 errors compiling module, stopping
Fatal: Compilation aborted

Simply commenting out "{$linklib common}" on line 19 of the above file fixes 
the problem.  I would like to propose that this error be changed to a warning, since 
apparently not having the library present doesn't cause issues for compilation, just 
possibly execution later on.

No. If you have a messed up system, that is not *our* fault.

But isn’t the complaint valid to a certain degree: if one cross compiles from 
x86_64-win64 to i386-win32, then the wrong DLLs are checked due to folder 
redirection, no? We have only code in place for the other direction (i386-win32 
to x86_64-win64).

The weird behaviour of windows is is not a valid reason to remove a {$linklib} 
statement.

Michael.
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