Bug in CYGWIN's UUID library: GUID_NULL not found.

Carlo B. carlo.bramini@gmail.com
Mon Feb 20 15:48:50 GMT 2023

I think that there is a bug into the uuid library, the one to be used
with the W32API for the POSIX core.
Please have a look to the following tiny test code:

#include <windows.h>
#include <initguid.h>
#include <ks.h>
#include <stdio.h>

int main()
        GUID_NULL.Data2, GUID_NULL.Data3,
        GUID_NULL.Data4[0], GUID_NULL.Data4[1],
        GUID_NULL.Data4[2], GUID_NULL.Data4[3],
        GUID_NULL.Data4[4], GUID_NULL.Data4[5],
        GUID_NULL.Data4[6], GUID_NULL.Data4[7]

    return 0;

Compiling it with x86_64-pc-cygwin or i686-pc-cygwin does not work:

$ gcc e.c -o e.exe -luuid
undefined reference to `GUID_NULL'
collect2: error: ld returned 1 exit status

But it works fine when using MinGW-w64 compilers:

$ x86_64-w64-mingw32-gcc e.c -o e.exe -luuid

$ ./e.exe

I discovered this issue when making a new FluidSynth package for
CYGWIN for my repository of packages.
Can you confirm it?
Thank you very much for your time.


Carlo Bramini.

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