On 6/9/25 11:02 PM, Brian Inglis via Cygwin-apps wrote:
On 2025-06-09 15:45, Brian Inglis via Cygwin-apps wrote:
On 2025-06-08 06:04, Jonathan Yong via Cygwin-announce wrote:
Now released for both 32bit and 64bit Cygwin:
Notable changes:
* Added import libraries for msvcr40d.dll, msvcrtd.dll, msvcr70d.dll,
msvcr71d.dll, msvcr80d.dll, msvcr100d.dll, msvcr110d.dll.
* Better CRT API consistency between UCRT and MSVCRT, making many
APIs available to earlier versions of the MSVCR* runtime as well.
* CRTDLL stat API fixes.
* Updated Hyper-V headers.
* Synchronized with Wine headers (from Wine 10.9).
* Many other new win32 APIs.
* Fix _atexit call differing between DLLs and EXEs.
* Basic support for ARM64EC targets (arm64ec-w64-mingw32).
* Make it possible to build winpthreads with MSVC and clang-cl.
* Many small fixes for gendef, genidl and genpeimg.
We have reports of failing Cygwin builds after this update:
https://cygwin.com/pipermail/cygwin-patches/2025q2/013754.html
Caused by changing the definition type to cmsghdr:
https://github.com/mingw-w64/mingw-w64/commit/
c3b5e71d54aa596bba9fb8ec7c1f9f712e7c616a
+ #if (_WIN32_WINNT >= 0x0600)
* #define _WSACMSGHDR cmsghdr
+ #endif
+
typedef struct _WSACMSGHDR {
SIZE_T cmsg_len;
INT cmsg_level;
INT cmsg_type;More actions
} WSACMSGHDR,*PWSACMSGHDR,*LPWSACMSGHDR;
$ grep -A8 '^struct\s\+cmsghdr' /usr/include/cygwin/socket.h
struct cmsghdr
{
/* Amazing but true: The type of cmsg_len should be socklen_t but, just
as on Linux, the definition of the kernel is incompatible with this,
so the Windows socket headers define cmsg_len as SIZE_T. */
size_t cmsg_len; /* Length of cmsghdr + data */
int cmsg_level; /* Protocol */
int cmsg_type; /* Protocol type */
};
$ grep -w 'typedef.*ULONG_PTR' /usr/include/w32api/basetsd.h | head -3
__MINGW_EXTENSION typedef unsigned __int64 ULONG_PTR,*PULONG_PTR;
typedef unsigned long ULONG_PTR,*PULONG_PTR;
__MINGW_EXTENSION typedef ULONG_PTR SIZE_T,*PSIZE_T;
https://github.com/cygwin/cygwin/actions/
runs/15537033468%C2%A0workflow%C2%A0started
https://github.com/cygwin/cygwin/actions/runs/15537033468/job/43738461428
Was this upgrade tested with a current Cygwin build before deployment?
Thanks for debugging the issue. I'll make sure to do a test build before
each release.
