1 files changed, 4 insertions, 1 deletions

diff --git a/lib/libalpm/util.h b/lib/libalpm/util.h
index 95112cff..c0c9ff04 100644
--- a/lib/libalpm/util.h
+++ b/lib/libalpm/util.h
@@ -119,7 +119,10 @@ int _alpm_unpack(alpm_handle_t *handle, const char *archive, const char *prefix,
 
 ssize_t _alpm_files_in_directory(alpm_handle_t *handle, const char *path, int full_count);
 
-int _alpm_run_chroot(alpm_handle_t *handle, const char *cmd, char *const argv[]);
+typedef ssize_t (*_alpm_cb_io)(void *buf, ssize_t len, void *ctx);
+
+int _alpm_run_chroot(alpm_handle_t *handle, const char *cmd, char *const argv[],
+		_alpm_cb_io in_cb, void *in_ctx);
 int _alpm_ldconfig(alpm_handle_t *handle);
 int _alpm_str_cmp(const void *s1, const void *s2);
 char *_alpm_filecache_find(alpm_handle_t *handle, const char *filename);