Add NO_C99_FORMAT to support older compilers.

The NO_C99_FORMAT macro allows compilers that lack support for the
ll,hh,j,z,t size specifiers (eg. gcc 2.95.2) to adapt the code to avoid
runtime errors in the formatted IO functions.

Signed-off-by: Ramsay Allan Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <junkio@cox.net>

1 files changed, 13 insertions, 5 deletions

diff --git a/mktag.c b/mktag.c
index fa4a9e600..09b6e437d 100644
--- a/mktag.c
+++ b/mktag.c
@@ -39,6 +39,12 @@ static int verify_object(unsigned char *sha1, const char *expected_type)
 	return ret;
 }
 
+#ifdef NO_C99_FORMAT
+#define PD_FMT "%d"
+#else
+#define PD_FMT "%td"
+#endif
+
 static int verify_tag(char *buffer, unsigned long size)
 {
 	int typelen;
@@ -67,15 +73,15 @@ static int verify_tag(char *buffer, unsigned long size)
 	/* Verify tag-line */
 	tag_line = strchr(type_line, '\n');
 	if (!tag_line)
-		return error("char%td: could not find next \"\\n\"", type_line - buffer);
+		return error("char" PD_FMT ": could not find next \"\\n\"", type_line - buffer);
 	tag_line++;
 	if (memcmp(tag_line, "tag ", 4) || tag_line[4] == '\n')
-		return error("char%td: no \"tag \" found", tag_line - buffer);
+		return error("char" PD_FMT ": no \"tag \" found", tag_line - buffer);
 
 	/* Get the actual type */
 	typelen = tag_line - type_line - strlen("type \n");
 	if (typelen >= sizeof(type))
-		return error("char%td: type too long", type_line+5 - buffer);
+		return error("char" PD_FMT ": type too long", type_line+5 - buffer);
 
 	memcpy(type, type_line+5, typelen);
 	type[typelen] = 0;
@@ -92,14 +98,14 @@ static int verify_tag(char *buffer, unsigned long size)
 			break;
 		if (c > ' ')
 			continue;
-		return error("char%td: could not verify tag name", tag_line - buffer);
+		return error("char" PD_FMT ": could not verify tag name", tag_line - buffer);
 	}
 
 	/* Verify the tagger line */
 	tagger_line = tag_line;
 
 	if (memcmp(tagger_line, "tagger", 6) || (tagger_line[6] == '\n'))
-		return error("char%td: could not find \"tagger\"", tagger_line - buffer);
+		return error("char" PD_FMT ": could not find \"tagger\"", tagger_line - buffer);
 
 	/* TODO: check for committer info + blank line? */
 	/* Also, the minimum length is probably + "tagger .", or 63+8=71 */
@@ -108,6 +114,8 @@ static int verify_tag(char *buffer, unsigned long size)
 	return 0;
 }
 
+#undef PD_FMT
+
 int main(int argc, char **argv)
 {
 	unsigned long size = 4096;