Remove flags that base-gcc doesn't like

Index: Makefile
--- Makefile.orig
+++ Makefile
@@ -3,7 +3,7 @@
 PREFIX=/usr/local
 BINDIR=$(PREFIX)/bin
 MANDIR=$(PREFIX)/share/man
-ALL_CFLAGS=$(CFLAGS) -std=c99 -Wall -Wextra -Wpedantic -Wno-unused-parameter
+ALL_CFLAGS=$(CFLAGS) -std=c99 -Wall -Wextra
 OBJ=\
 	build.o\
 	deps.o\