Improve build: add <unistd.h> and use -O2 instead of -O3

(Nobody should use -O3. It just makes bad inlining decisions).

1 files changed, 1 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index cd299f8506..a244b27ac6 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@
 # BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely randomly
 # break unless your underlying filesystem supports those sub-second times
 # (my ext3 doesn't).
-CFLAGS=-g -O3 -Wall
+CFLAGS=-g -O2 -Wall
 
 CC=gcc
 AR=ar