Make git-pull complain and give advice when there is nothing to merge with

diff --git a/utf8.c b/utf8.c
index 9e1a6d4964c04f21aff757534f09d013c64f5675..4efef6faf7c71f3201935f81611806af084c45d4 100644 (file)
--- a/utf8.c
+++ b/utf8.c
@@ -3,13 +3,15 @@
 
 /* This code is originally from http://www.cl.cam.ac.uk/~mgk25/ucs/ */
 
+typedef unsigned int ucs_char_t;  /* assuming 32bit int */
+
 struct interval {
   int first;
   int last;
 };
 
 /* auxiliary function for binary search in interval table */
-static int bisearch(wchar_t ucs, const struct interval *table, int max) {
+static int bisearch(ucs_char_t ucs, const struct interval *table, int max) {
        int min = 0;
        int mid;
 
@@ -56,11 +58,11 @@ static int bisearch(wchar_t ucs, const struct interval *table, int max) {
  *      ISO 8859-1 and WGL4 characters, Unicode control characters,
  *      etc.) have a column width of 1.
  *
- * This implementation assumes that wchar_t characters are encoded
+ * This implementation assumes that ucs_char_t characters are encoded
  * in ISO 10646.
  */
 
-static int wcwidth(wchar_t ch)
+static int git_wcwidth(ucs_char_t ch)
 {
        /*
         * Sorted list of non-overlapping intervals of non-spacing characters,
@@ -157,7 +159,7 @@ static int wcwidth(wchar_t ch)
 int utf8_width(const char **start)
 {
        unsigned char *s = (unsigned char *)*start;
-       wchar_t ch;
+       ucs_char_t ch;
 
        if (*s < 0x80) {
                /* 0xxxxxxx */
@@ -205,7 +207,7 @@ int utf8_width(const char **start)
                return 0;
        }
 
-       return wcwidth(ch);
+       return git_wcwidth(ch);
 }
 
 int is_utf8(const char *text)
@@ -298,11 +300,17 @@ int is_encoding_utf8(const char *name)
  * with iconv.  If the conversion fails, returns NULL.
  */
 #ifndef NO_ICONV
+#ifdef OLD_ICONV
+       typedef const char * iconv_ibp;
+#else
+       typedef char * iconv_ibp;
+#endif
 char *reencode_string(const char *in, const char *out_encoding, const char *in_encoding)
 {
        iconv_t conv;
        size_t insz, outsz, outalloc;
-       char *out, *outpos, *cp;
+       char *out, *outpos;
+       iconv_ibp cp;
 
        if (!in_encoding)
                return NULL;
@@ -314,7 +322,7 @@ char *reencode_string(const char *in, const char *out_encoding, const char *in_e
        outalloc = outsz + 1; /* for terminating NUL */
        out = xmalloc(outalloc);
        outpos = out;
-       cp = (char *)in;
+       cp = (iconv_ibp)in;
 
        while (1) {
                size_t cnt = iconv(conv, &cp, &insz, &outpos, &outsz);