commit 6b4d83a07632043a0f0efcf3957f669ac85c76ae
Author: Steven Dee <steve@smartercode.net>
Date:   Mon Jul 22 10:52:29 2013 -0400

    Set -std=c99
    
    This suppresses warnings about the %llu format specifier in df.c.

diff --git a/config.mk b/config.mk
index 5054e8d..121aed7 100644
--- a/config.mk
+++ b/config.mk
@@ -9,7 +9,7 @@ MANPREFIX = $(PREFIX)/share/man
 #CC = musl-gcc
 LD = $(CC)
 CPPFLAGS = -D_BSD_SOURCE -D_GNU_SOURCE
-CFLAGS   = -g -ansi -Wall -pedantic $(CPPFLAGS)
+CFLAGS   = -g -ansi -Wall -pedantic -std=c99 $(CPPFLAGS)
 LDFLAGS  = -g
 
 #CC = tcc