build: Move feature test macros to prelude.h

This replaces the explicit CPPFLAGS list in flags.mk with just
`-include src/prelude.h`, shortening our compiler command lines and
allowing them to be easily documented.

1 files changed, 0 insertions, 2 deletions

diff --git a/src/mtab.h b/src/mtab.h
index 67290c2..6c7d5cb 100644
--- a/src/mtab.h
+++ b/src/mtab.h
@@ -8,8 +8,6 @@
 #ifndef BFS_MTAB_H
 #define BFS_MTAB_H
 
-#include "prelude.h"
-
 struct bfs_stat;
 
 /**