compat: Add simplified merge sort implementation from glibc

diff --git a/color.h b/color.h
index 88bb8ff1bd337d1281ee7f814d0529a7756f39e6..ff63513d39b1553e65230ef98583549506670950 100644 (file)
--- a/color.h
+++ b/color.h
@@ -4,9 +4,9 @@
 /* "\033[1;38;5;2xx;48;5;2xxm\0" is 23 bytes */
 #define COLOR_MAXLEN 24
 
-int git_config_colorbool(const char *var, const char *value);
+int git_config_colorbool(const char *var, const char *value, int stdout_is_tty);
 void color_parse(const char *var, const char *value, char *dst);
-int color_printf(const char *color, const char *fmt, ...);
-int color_printf_ln(const char *color, const char *fmt, ...);
+int color_fprintf(FILE *fp, const char *color, const char *fmt, ...);
+int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...);
 
 #endif /* COLOR_H */