Checking patch posix/regex.h...
error: while searching for:
     || 2 < __GNUC__ + (95 <= __GNUC_MINOR__) \
     || __clang_major__ >= 3
#  define _Restrict_ __restrict
# elif 199901L <= __STDC_VERSION__ || defined restrict
#  define _Restrict_ restrict
# else
#  define _Restrict_
# endif
#endif
/* For the ISO C99 syntax

error: patch failed: posix/regex.h:647
error: posix/regex.h: patch does not apply