Use PATH_MAX instead of MAXPATHLEN

According to sys/paramh.h it's a "BSD name" for values defined in
<limits.h>. Besides PATH_MAX seems to be more commonly used.
Signed-off-by: NJonas Fonseca <fonseca@diku.dk>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

builtin-checkout-index.c

@@ -45,7 +45,7 @@
 static int line_termination = '\n';
 static int checkout_stage; /* default to checkout stage0 */
 static int to_tempfile;
-static char topath[4][MAXPATHLEN+1];
+static char topath[4][PATH_MAX + 1];
 
 static struct checkout state;
 

dir.c

@@ -293,7 +293,7 @@ static int read_directory_recursive(struct dir_struct *dir, const char *path, co
 	if (fdir) {
 		int exclude_stk;
 		struct dirent *de;
-		char fullname[MAXPATHLEN + 1];
+		char fullname[PATH_MAX + 1];
 		memcpy(fullname, base, baselen);
 
 		exclude_stk = push_exclude_per_directory(dir, base, baselen);

entry.c

@@ -135,7 +135,7 @@ static int write_entry(struct cache_entry *ce, char *path, struct checkout *stat
 
 int checkout_entry(struct cache_entry *ce, struct checkout *state, char *topath)
 {
-	static char path[MAXPATHLEN+1];
+	static char path[PATH_MAX + 1];
 	struct stat st;
 	int len = state->base_dir_len;
 
@@ -172,5 +172,3 @@ int checkout_entry(struct cache_entry *ce, struct checkout *state, char *topath)
 	create_directories(path, state);
 	return write_entry(ce, path, state, 0);
 }
-
-

git-compat-util.h

@@ -172,7 +172,4 @@ static inline int sane_case(int x, int high)
 	return x;
 }
 
-#ifndef MAXPATHLEN
-#define MAXPATHLEN 256
-#endif
 #endif