win32: Support certain ANSI sequences on cmd.exe

Support sequences are mostly color ones.

This was extracted from commit
e56b799d6ad8afba4168fffa7218d44c041a72d2
in Git repository. Changes from original version:

> diff --git a/home/pclouds/w/git/compat/winansi.c b/tmp/winansi2.c
> index 44dc293..e2e7010 100644
> --- a/home/pclouds/w/git/compat/winansi.c
> +++ b/tmp/winansi2.c
> @@ -2,8 +2,9 @@
>   * Copyright 2008 Peter Harris <git@peter.is-a-geek.org>
>   */
>
> +#include "libbb.h"
>  #include <windows.h>
> -#include "../git-compat-util.h"
> +#undef PACKED
>
>  /*
>   Functions to be wrapped:

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/include/mingw.h b/include/mingw.h
index 9d102a93f..479fbbe2b 100644
--- a/include/mingw.h
+++ b/include/mingw.h
@@ -123,6 +123,17 @@ NOIMPL(sigfillset,int *mask UNUSED_PARAM);
 int fdprintf(int fd, const char *format, ...);
 
 /*
+ * ANSI emulation wrappers
+ */
+
+int winansi_fputs(const char *str, FILE *stream);
+int winansi_printf(const char *format, ...) __attribute__((format (printf, 1, 2)));
+int winansi_fprintf(FILE *stream, const char *format, ...) __attribute__((format (printf, 2, 3)));
+#define fputs winansi_fputs
+#define printf(...) winansi_printf(__VA_ARGS__)
+#define fprintf(...) winansi_fprintf(__VA_ARGS__)
+
+/*
  * stdlib.h
  */
 #define WIFEXITED(x) ((unsigned)(x) < 259)      /* STILL_ACTIVE */