Merge branch 'rs/maint-config-use-labs' into maint

diff --git a/git-compat-util.h b/git-compat-util.h
index fb41118c0705c628bed093c4a915a58aa01a5a1a..400e92108687e31dd16fbcea1a43e04556b98566 100644 (file)
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -326,6 +326,8 @@ static inline char *git_find_last_dir_sep(const char *path)
 
 #include "wildmatch.h"
 
+struct strbuf;
+
 /* General helper functions */
 extern void vreportf(const char *prefix, const char *err, va_list params);
 extern void vwritef(int fd, const char *prefix, const char *err, va_list params);
@@ -594,6 +596,11 @@ int inet_pton(int af, const char *src, void *dst);
 const char *inet_ntop(int af, const void *src, char *dst, size_t size);
 #endif
 
+#ifdef NO_PTHREADS
+#define atexit git_atexit
+extern int git_atexit(void (*handler)(void));
+#endif
+
 extern void release_pack_memory(size_t);
 
 typedef void (*try_to_free_t)(size_t);
@@ -677,7 +684,7 @@ extern const unsigned char sane_ctype[256];
 #define iscntrl(x) (sane_istest(x,GIT_CNTRL))
 #define ispunct(x) sane_istest(x, GIT_PUNCT | GIT_REGEX_SPECIAL | \
                GIT_GLOB_SPECIAL | GIT_PATHSPEC_MAGIC)
-#define isxdigit(x) (hexval_table[x] != -1)
+#define isxdigit(x) (hexval_table[(unsigned char)(x)] != -1)
 #define tolower(x) sane_case((unsigned char)(x), 0x20)
 #define toupper(x) sane_case((unsigned char)(x), 0)
 #define is_pathspec_magic(x) sane_istest(x,GIT_PATHSPEC_MAGIC)
@@ -771,17 +778,27 @@ void git_qsort(void *base, size_t nmemb, size_t size,
 #endif
 #endif
 
-#if defined(__GNUC__) || (_MSC_VER >= 1400)
+#if defined(__GNUC__) || (_MSC_VER >= 1400) || defined(__C99_MACRO_WITH_VA_ARGS)
 #define HAVE_VARIADIC_MACROS 1
 #endif
 
 /*
  * Preserves errno, prints a message, but gives no warning for ENOENT.
- * Always returns the return value of unlink(2).
+ * Returns 0 on success, which includes trying to unlink an object that does
+ * not exist.
  */
 int unlink_or_warn(const char *path);
+ /*
+  * Tries to unlink file.  Returns 0 if unlink succeeded
+  * or the file already didn't exist.  Returns -1 and
+  * appends a message to err suitable for
+  * 'error("%s", err->buf)' on error.
+  */
+int unlink_or_msg(const char *file, struct strbuf *err);
 /*
- * Likewise for rmdir(2).
+ * Preserves errno, prints a message, but gives no warning for ENOENT.
+ * Returns 0 on success, which includes trying to remove a directory that does
+ * not exist.
  */
 int rmdir_or_warn(const char *path);
 /*