Temporary fix to pass R CMD check on Windows

See issue #227

Signed-off-by: Stefan Widgren <stefan.widgren@gmail.com>

Author: stewid

src/libgit2/src/config.c

@@ -599,7 +599,14 @@ int git_config_delete_entry(git_config *cfg, const char *name)
 int git_config_set_int64(git_config *cfg, const char *name, int64_t value)
 {
 	char str_value[32]; /* All numbers should fit in here */
+#ifdef _WIN32
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-extra-args"
 	p_snprintf(str_value, sizeof(str_value), "%" PRId64, value);
+#pragma GCC diagnostic pop
+#else
+	p_snprintf(str_value, sizeof(str_value), "%" PRId64, value);
+#endif
 	return git_config_set_string(cfg, name, str_value);
 }
 

src/libgit2/src/odb.c

@@ -53,7 +53,14 @@ static int load_alternates(git_odb *odb, const char *objects_dir, int alternate_
 int git_odb__format_object_header(char *hdr, size_t n, git_off_t obj_len, git_otype obj_type)
 {
 	const char *type_str = git_object_type2string(obj_type);
+#ifdef _WIN32
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-extra-args"
 	int len = p_snprintf(hdr, n, "%s %lld", type_str, (long long)obj_len);
+#pragma GCC diagnostic pop
+#else
+	int len = p_snprintf(hdr, n, "%s %lld", type_str, (long long)obj_len);
+#endif
 	assert(len > 0 && len <= (int)n);
 	return len+1;
 }