Use braces in Makefile

Darwin.mk

@@ -1,4 +1,4 @@
 LIBRESSL_PREFIX = /usr/local/opt/libressl
 LDLIBS = -lcurses -ltls -framework Cocoa
 BINS += sandman
-MAN1 += sandman.1
+MANS += sandman.1

Linux.mk

@@ -1,6 +1,6 @@
 LIBRESSL_PREFIX = /usr/local
 CFLAGS += -D_GNU_SOURCE
 LDLIBS = -lncursesw -lpthread
-LDLIBS += $(LIBRESSL_PREFIX)/lib/libtls.a
+LDLIBS += ${LIBRESSL_PREFIX}/lib/libtls.a
-LDLIBS += $(LIBRESSL_PREFIX)/lib/libssl.a
+LDLIBS += ${LIBRESSL_PREFIX}/lib/libssl.a
-LDLIBS += $(LIBRESSL_PREFIX)/lib/libcrypto.a
+LDLIBS += ${LIBRESSL_PREFIX}/lib/libcrypto.a

Makefile

@@ -1,16 +1,16 @@
 PREFIX = ~/.local
-MANDIR = $(PREFIX)/share/man
+MANDIR = ${PREFIX}/share/man
 CHROOT_USER = chat
-CHROOT_GROUP = $(CHROOT_USER)
+CHROOT_GROUP = ${CHROOT_USER}
 LIBRESSL_PREFIX = /usr/local
 
 CFLAGS += -std=c11 -Wall -Wextra -Wpedantic
-CFLAGS += -I$(LIBRESSL_PREFIX)/include
+CFLAGS += -I${LIBRESSL_PREFIX}/include
-LDFLAGS += -L$(LIBRESSL_PREFIX)/lib
+LDFLAGS += -L${LIBRESSL_PREFIX}/lib
 LDLIBS = -lcursesw -ltls
 
 BINS = catgirl
-MAN1 = catgirl.1
+MANS = catgirl.1
 
 -include config.mk
 
@@ -34,32 +34,32 @@ TESTS += format.t
 TESTS += pls.t
 TESTS += term.t
 
-all: tags $(BINS) test
+all: tags ${BINS} test
 
-catgirl: $(OBJS)
+catgirl: ${OBJS}
-	$(CC) $(LDFLAGS) $(OBJS) $(LDLIBS) -o $@
+	${CC} ${LDFLAGS} ${OBJS} ${LDLIBS} -o $@
 
-$(OBJS): chat.h
+${OBJS}: chat.h
 
-test: $(TESTS)
+test: ${TESTS}
-	set -e; $(TESTS:%=./%;)
+	set -e; ${TESTS:%=./%;}
 
 .SUFFIXES: .t
 
 .c.t:
-	$(CC) $(CFLAGS) -DTEST $(LDFLAGS) $< $(LDLIBS) -o $@
+	${CC} ${CFLAGS} -DTEST ${LDFLAGS} $< ${LDLIBS} -o $@
 
 tags: *.c *.h
 	ctags -w *.c *.h
 
-install: $(BINS) $(MAN1)
+install: ${BINS} ${MANS}
-	install -d $(PREFIX)/bin $(MANDIR)/man1
+	install -d ${PREFIX}/bin ${MANDIR}/man1
-	install $(BINS) $(PREFIX)/bin
+	install ${BINS} ${PREFIX}/bin
-	install -m 644 $(MAN1) $(MANDIR)/man1
+	install -m 644 ${MANS} ${MANDIR}/man1
 
 uninstall:
-	rm -f $(BINS:%=$(PREFIX)/bin/%)
+	rm -f ${BINS:%=${PREFIX}/bin/%}
-	rm -f $(MAN1:%=$(MANDIR)/man1/%)
+	rm -f ${MANS:%=${MANDIR}/man1/%}
 
 chroot.tar: catgirl catgirl.1 man.sh
 	install -d -o root -g wheel \
@@ -73,7 +73,7 @@ chroot.tar: catgirl catgirl.1 man.sh
 		root/usr/local/etc/ssl \
 		root/usr/share/man \
 		root/usr/share/misc
-	install -d -o $(CHROOT_USER) -g $(CHROOT_GROUP) root/home/$(CHROOT_USER)
+	install -d -o ${CHROOT_USER} -g ${CHROOT_GROUP} root/home/${CHROOT_USER}
 	cp -fp /libexec/ld-elf.so.1 root/libexec
 	cp -fp \
 		/lib/libc.so.7 \
@@ -89,15 +89,15 @@ chroot.tar: catgirl catgirl.1 man.sh
 	cp -af /usr/share/locale root/usr/share
 	cp -fp /usr/share/misc/termcap.db root/usr/share/misc
 	cp -fp /rescue/sh /usr/bin/mandoc /usr/bin/less root/bin
-	$(MAKE) install PREFIX=root/usr
+	${MAKE} install PREFIX=root/usr
 	install man.sh root/usr/bin/man
 	tar -c -f chroot.tar -C root bin etc home lib libexec usr
 
 install-chroot: chroot.tar
-	tar -x -f chroot.tar -C /home/$(CHROOT_USER)
+	tar -x -f chroot.tar -C /home/${CHROOT_USER}
 
 clean:
-	rm -fr $(BINS) $(OBJS) $(TESTS) tags root chroot.tar
+	rm -fr ${BINS} ${OBJS} ${TESTS} tags root chroot.tar
 
 README: catgirl.7
 	mandoc catgirl.7 | col -bx > README

NetBSD.mk

@@ -1,3 +1,3 @@
 LIBRESSL_PREFIX = /usr/pkg/libressl
-LDFLAGS += -rpath=$(LIBRESSL_PREFIX)/lib
+LDFLAGS += -rpath=${LIBRESSL_PREFIX}/lib
 LDLIBS = -lcurses -ltls