make -> mk

change %u from verb to flag.
diff --git a/src/libfmt/fmt.c b/src/libfmt/fmt.c
index 06f6c95..976bf7c 100644
--- a/src/libfmt/fmt.c
+++ b/src/libfmt/fmt.c
@@ -64,7 +64,7 @@
 	'p',	__ifmt,
 	'r',	__errfmt,
 	's',	__strfmt,
-	'u',	__ifmt,		/* in Plan 9, __flagfmt */
+	'u',	__flagfmt,	/* in Unix, __ifmt */
 	'x',	__ifmt,
 	0,	nil,
 };
diff --git a/src/libfmt/Makefile b/src/libfmt/mkfile
similarity index 75%
rename from src/libfmt/Makefile
rename to src/libfmt/mkfile
index 9e48a59..4a03a33 100644
--- a/src/libfmt/Makefile
+++ b/src/libfmt/mkfile
@@ -1,5 +1,5 @@
 PLAN9=../..
-include $(PLAN9)/src/Makehdr
+<$PLAN9/src/mkhdr
 
 LIB=libfmt.a
 
@@ -40,18 +40,18 @@
 	vseprint.$O\
 	vsmprint.$O\
 	vsnprint.$O\
-	$(NUM)\
-	$(NAN)\
+	$NUM\
+	$NAN\
 
 HFILES=\
 	fmtdef.h\
-	$(PLAN9)/include/fmt.h\
+	$PLAN9/include/fmt.h\
 
-include $(PLAN9)/src/Makesyslib
+<$PLAN9/src/mksyslib
 
-$(NAN).$O: nan.h
+$NAN.$O: nan.h
 strtod.$O: nan.h
 
-test: $(LIB) test.$O
-	$(CC) -o test test.$O $(LIB) -L$(PLAN9)/lib -lutf
+test: $LIB test.$O
+	$CC -o test test.$O $LIB -L$PLAN9/lib -lutf