Fix a strict aliasing warning from GCC 4.1.

Thanks to: Joerg Sonnenberger
Approved by: re (hrs)
MFC after: 3 days

1 files changed, 4 insertions, 1 deletions

diff --git a/lib/libarchive/archive_read_support_compression_program.c b/lib/libarchive/archive_read_support_compression_program.c
index d406797..dfea568 100644
--- a/lib/libarchive/archive_read_support_compression_program.c
+++ b/lib/libarchive/archive_read_support_compression_program.c
@@ -113,6 +113,7 @@ child_read(struct archive_read *a, char *buf, size_t buf_len)
 {
 	struct archive_decompress_program *state = a->decompressor->data;
 	ssize_t ret, requested;
+	const void *child_buf;
 
 	if (state->child_stdout == -1)
 		return (-1);
@@ -138,8 +139,10 @@ restart_read:
 		return (-1);
 
 	if (state->child_in_buf_avail == 0) {
+		child_buf = state->child_in_buf;
 		ret = (a->client_reader)(&a->archive,
-		    a->client_data, (const void **)&state->child_in_buf);
+		    a->client_data,&child_buf);
+		state->child_in_buf = (const char *)child_buf;
 
 		if (ret < 0) {
 			close(state->child_stdin);