Eli Zaretskii
eliz****@gnu*****
Fri Jun 29 15:26:04 JST 2018
> From: David Gressett <DGres****@amli-*****> > Date: Thu, 28 Jun 2018 21:52:07 -0500 > > (this message has been double-spaced to keep Microsoft Outlook from merging lines) (May I suggest to switch to a saner MUA?) > ../../../src/gcc-7.3.0/gcc/ada/rtinit.c:195:44: error: '_O_U16TEXT' was not declared in this scope > __gnat_current_ccs_encoding = _O_U16TEXT; > > The other two undefined items were _O_WTEXT and _O_U8TEXT. > For all three of these, the compiler suggested _O_TEXT as an alternative. > rtinit.c includes <fcntl.h> which defines the three undefined items: > > #if (__MSVCRT_VERSION__ >= 0x0800) > #define _O_WTEXT 0x10000 > #define _O_U16TEXT 0x20000 > #define _O_U8TEXT 0x40000 > #endif > > fcntl.h includes _mingw.h which includes mscrtver.h, which defines a default value for __MSVCRT_VERSION__ > > The default value is 0x0600, so unless an overriding #define produces a larger value, these constants will be undefined. AFAIU, the above means that the Ada compiler has dropped support of Windows versions before Vista, and the compiler you produce will be unable to run on those older versions as it does on Windows 7 and later. Unless, that is, the source has some fallback for those older versions (and _O_TEXT sounds like a good idea to me up front), but I didn't look at the sources to see if they do have such a fallback, and I don't really understand what that will do, since UTF-16 text will not be supported that way. If you never intend to have your compiler to run on older systems, just define __MSVCRT_VERSION__ to the higher number, I'd say. Keith will probably have a better insight.
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