In file included from /usr/include/string.h:152:0,
                 from ../git/localedef/include/string.h:1,
                 from glibc/locale/programs/ld-numeric.c:23:
/usr/include/bits/types/locale_t.h:24:20: error: conflicting types for 'locale_t'
 typedef __locale_t locale_t;
                    ^~~~~~~~
In file included from glibc/locale/langinfo.h:591:0,
                 from glibc/locale/programs/ld-numeric.c:22:
glibc/locale/xlocale.h:42:20: note: previous declaration of 'locale_t' was here
 typedef __locale_t locale_t;
                    ^~~~~~~~