Add flex to sets.devel

1 files changed, 1 insertions, 0 deletions

diff --git a/sets.lua b/sets.lua
index 4f25f155..cba3e012 100644
--- a/sets.lua
+++ b/sets.lua
@@ -42,6 +42,7 @@ return {
 	},
 	devel={
 		'cproc',
+		'flex',
 		'make',
 		'man-pages-posix',
 		'nasm',