Compilation fails on Cygwin because of cygwin_conv_to_full_path_path()

[vinriviere]

I've just tried to compile ARAnyM on Cygwin64 from Git sources.
It fails with:

../../aranym-GIT-20240215/src/Unix/cygwin/tools_cygwin.cpp: In function ‘char* cygwin_path_to_win32(char*, size_t)’:
../../aranym-GIT-20240215/src/Unix/cygwin/tools_cygwin.cpp:16:9: error: ‘cygwin_conv_to_full_win32_path’ was not declared in this scope
   16 |         cygwin_conv_to_full_win32_path(path, winpath);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

(same at line 28)

Source:

aranym/src/Unix/cygwin/tools_cygwin.cpp

Lines 13 to 17 in 84983cc

	#if defined(CYGWIN_VERSION_CYGWIN_CONV) && CYGWIN_VERSION_DLL_COMBINED >= CYGWIN_VERSION_CYGWIN_CONV
	cygwin_conv_path(CCP_POSIX_TO_WIN_A | CCP_ABSOLUTE, path, winpath, sizeof(winpath));
	#else
	cygwin_conv_to_full_win32_path(path, winpath);
	#endif

I have no idea where that cygwin_conv_to_full_win32_path() comes from.
I replaced the complex #if ... with #if 1. This fixes the compilation, and works well (#22 is indeed fixed).

[th-otto]

It's supposed to be declared in <sys/cygwin.h>, but maybe that is no longer the case with newer cygwin versions. Did you only change the first #if? There is another one a few lines later.

[vinriviere]

There is no cygwin_conv_to_full_path_path() in current Cygwin's /usr/include/sys/cygwin.h.

And yes, I needed to change the 2 #if.