dlclose reports ENOENT with simple code

[Duncan Roe]

On Sun, Mar 30, 2025 at 05:32:44PM +0800, cygwin wrote:
> Code to reproduce:
>
>
> #include <dlfcn.h>
> #include <assert.h>
> #include <stdio.h>
> #include <stdlib.h>
>
> int main() {
>     void* handle = dlopen("/usr/bin/cygwin1.dll", RTLD_LAZY | RTLD_LOCAL);
>     if (!handle)
>     {
>         printf("dlopen: %s\n", dlerror());
>         exit(1);
>     }
>     int res = dlclose(handle);
>     if (res != 0)
>     {
>         printf("dlclose: %s\n", dlerror());
>         exit(1);
>     }
> }
>
>
> The program should succeed, but now it fails with "dlclose: No such file or
> directory".
>
>
> --
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Reproduces here. uname -r reports 3.6.0-1.x86_64

Cheers ... Duncan.