[fpc-devel] Building trunk of today fails on Windows: Error: Invalid DLL C:\WINDOWS\system32\common.dll, invalid header size

[Bart]

Hi,

C:\devel\fpc\trunk>git log -1
commit a77f5221f341b32bb964c03dc61c1e80b71714dd (HEAD -> main,
origin/main, origin/HEAD)
Author: florian <florian at freepascal.org>
Date:   Sat Aug 21 20:36:29 2021 +0200

C:\devel\fpc\trunk>make clean
....
C:\devel\fpc\trunk>make all
...
[ 19%] Compiled package odbc
Start compiling package oracle for target i386-win32.
       Compiling oracle\BuildUnit_oracle.pp
       Compiling .\oracle\src\oratypes.pp
       Compiling .\oracle\src\ocidyn.pp
       Compiling .\oracle\src\oci.pp
       Compiling .\oracle\src\oraoci.pp
External command "C:/devel/fpc/trunk/compiler/ppc386.exe -Twin32
-FUoracle\units\i386-win32\
-FuC:\devel\fpc\trunk\rtl\units\i386-win32\ -Fuoracle\src
-Fioracle\src -Ur -Xs -O2 -n -g -gl -di386 -dRELEASE -XX -CX -Sc -viq
oracle\BuildUnit_oracle.pp" failed with exit code 1. Console output:
Target OS: Win32 for i386
Compiling oracle\BuildUnit_oracle.pp
Compiling .\oracle\src\oratypes.pp
Compiling .\oracle\src\ocidyn.pp
Compiling .\oracle\src\oci.pp
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

The installer encountered the following error:
Compilation of "BuildUnit_oracle.pp" failed
make[2]: *** [smart] Error 1
make[2]: Leaving directory `C:/devel/fpc/trunk/packages'
make[1]: *** [packages_smart] Error 2
make[1]: Leaving directory `C:/devel/fpc/trunk'
make: *** [build-stamp.i386-win32] Error 2

All this on Windows 10 Home 64-bit 21H1 build 19043.1165

It seems that this dll is not on present my system in the system32 folder.
C:\>dir common.dll /s
 Volume in drive C is Windows
 Volume Serial Number is 0C94-A215

 Directory of C:\Windows\System32\DriverStore\FileRepository\xtucomponent.inf_amd64_4cb858d369dc9598
24-02-2021  10:18           425.024 Common.dll

 Directory of C:\Windows\System32\DriverStore\FileRepository\xtucomponent.inf_amd64_98dcbf2de4d7f44b

30-10-2019  08:39           367.896 Common.dll

 Directory of C:\Windows\SysWOW64

24-02-2021  10:18           425.024 Common.dll

Since when is this dll needed to build fpc?
Can I circumvent this requirement?
Am I required to install some additional software?

-- 
Bart