[PATCH 04/11] makedumpfile: Notify zstd unsupporting when disabled

[Tao Liu]

Signed-off-by: Tao Liu <ltao at redhat.com>
Signed-off-by: Coiby Xu <coxu at redhat.com>
---
 makedumpfile.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/makedumpfile.c b/makedumpfile.c
index 100b407..f3bf297 100644
--- a/makedumpfile.c
+++ b/makedumpfile.c
@@ -4171,6 +4171,15 @@ initial(void)
 	}
 #endif
 
+#ifndef USEZSTD
+	if (info->flag_compress == DUMP_DH_COMPRESSED_ZSTD) {
+		MSG("'-z' option is disabled, ");
+		MSG("because this binary doesn't support zstd "
+		    "compression.\n");
+		MSG("Try `make USEZSTD=on` when building.\n");
+	}
+#endif
+
 	if (info->flag_exclude_xen_dom && !is_xen_memory()) {
 		MSG("'-X' option is disable,");
 		MSG("because %s is not Xen's memory core image.\n", info->name_memory);
-- 
2.29.2