text: make default block size overridable via C pre-processor

This will be used for unit test purposes to force more allocations.

1 files changed, 2 insertions, 0 deletions

diff --git a/text.c b/text.c
index 55edf0e..1e97a14 100644
--- a/text.c
+++ b/text.c
@@ -24,7 +24,9 @@
 #include "util.h"
 
 /* Allocate blocks holding the actual file content in junks of size: */
+#ifndef BLOCK_SIZE
 #define BLOCK_SIZE (1 << 20)
+#endif
 /* Files smaller than this value are copied on load, larger ones are mmap(2)-ed
  * directely. Hence the former can be truncated, while doing so on the latter
  * results in havoc. */