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Diffstat (limited to 'libbb')
-rw-r--r--libbb/copyfd.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/libbb/copyfd.c b/libbb/copyfd.c
index 7e3531903..921fe3f81 100644
--- a/libbb/copyfd.c
+++ b/libbb/copyfd.c
@@ -119,8 +119,11 @@ static off_t bb_full_fd_action(int src_fd, int dst_fd, off_t size)
}
out:
+/* some environments don't have munmap(), hide it in #if */
+#if CONFIG_FEATURE_COPYBUF_KB > 4
if (buffer_size > 4 * 1024)
munmap(buffer, buffer_size);
+#endif
return status ? -1 : total;
}