HI,

For mingw, pdcurses is used, not ncurses.

pdcurses curses.h:

#if defined( CHTYPE_32)
    #if defined( CHTYPE_64)
        #error CHTYPE cannot be both CHTYPE_32 and CHTYPE_64
    #endif
    typedef uint32_t chtype;       /* chtypes will be 32 bits */
#else
    #define CHTYPE_64
    typedef uint64_t chtype;       /* chtypes will be 64 bits */
    #ifdef PDC_WIDE
       #define USING_COMBINING_CHARACTER_SCHEME
    #endif
#endif

Attached is my build script.

On 22.11.20. 17:23, Eli Zaretskii wrote:
>> Cc: gdb-patches@sourceware.org
>> From: gmail Vladimir Koković <vladimir.kokovic@gmail.com>
>> Date: Sun, 22 Nov 2020 17:19:49 +0100
>>
>>     CXX    tui/tui.o
>> ../../../src/gdb-10.1/gdb/tui/tui-win.c:130:1: error: narrowing
>> conversion of ‘2147483648’ from ‘chtype’ {aka ‘long long unsigned int’}
>> to ‘int’ [-Wnarrowing]
>>     130 | };
>>         | ^
>> ../../../src/gdb-10.1/gdb/tui/tui-win.c:130:1: error: narrowing
>> conversion of ‘2483027968’ from ‘chtype’ {aka ‘long long unsigned int’}
>> to ‘int’ [-Wnarrowing]
> So in the ncurses headers you used A_NORMAL etc, are declared 'chtype'
> (or long long unsigned int), is that right?