Much more portable Makefile
The config.mk file is now optional and only needs to be created if one wants to
persistently overwrite default macro values.
Features used in the Makefile that are not yet in the POSIX standard:
- Advanced macro assignment operators '+=' and '?=' [1]
- Special target .PHONY [2]
- Pattern rules [3]; only needed when $srcdir != '.'. For every pattern rule
there is an inference rule with the same effect. Hopefully, the inference
rules get picked up by make programs not supporting pattern rules.
- Silently including multiple possibly not exisiting files [4] [5]
[1] http://austingroupbugs.net/view.php?id=330
[2] http://austingroupbugs.net/view.php?id=523
[3] http://austingroupbugs.net/view.php?id=513
[4] http://austingroupbugs.net/view.php?id=333
[5] http://austingroupbugs.net/view.php?id=518
This commit is contained in:
Bert Münnich
parent
6beb8b4d71
commit
5155d52ab1
99
Makefile
99
Makefile
@ -1,42 +1,72 @@
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# Requires GNU make 3.80 or later
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# Works best with GNU make 3.80 or later
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VERSION := git-20171006
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VERSION = git-20171012
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srcdir = .
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PREFIX = /usr/local
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MANPREFIX = $(PREFIX)/share/man
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CC ?= gcc
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CFLAGS += -std=c99 -Wall -pedantic
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CPPFLAGS += -I/usr/include/freetype2 -D_XOPEN_SOURCE=700
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DEPFLAGS = -MMD -MP
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LDFLAGS +=
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# autoreload backend: inotify/nop
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AUTORELOAD = inotify
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# enable features requiring giflib (-lgif)
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HAVE_GIFLIB = 1
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# enable features requiring libexif (-lexif)
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HAVE_LIBEXIF = 1
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REQ_CPPFLAGS = -I. -DVERSION=\"$(VERSION)\" \
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-DHAVE_GIFLIB=$(HAVE_GIFLIB) -DHAVE_LIBEXIF=$(HAVE_LIBEXIF)
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ALL_CPPFLAGS = $(REQ_CPPFLAGS) $(CPPFLAGS)
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LIB_EXIF_0 =
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LIB_EXIF_1 = -lexif
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LIB_GIF_0 =
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LIB_GIF_1 = -lgif
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LDLIBS = -lImlib2 -lX11 -lXft \
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$(LIB_EXIF_$(HAVE_LIBEXIF)) $(LIB_GIF_$(HAVE_GIFLIB))
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-include config.mk
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SRCS = autoreload_$(AUTORELOAD).c commands.c image.c main.c options.c \
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thumbs.c util.c window.c
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OBJS = $(SRCS:.c=.o)
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DEPS = $(SRCS:.c=.d)
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all: sxiv
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all: sxiv
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include config.mk
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.PHONY: all clean install uninstall
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.SUFFIXES:
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.SUFFIXES: .c .o
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$(V).SILENT:
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override CPPFLAGS += -I. -DVERSION=\"$(VERSION)\" -DHAVE_GIFLIB=$(HAVE_GIFLIB) -DHAVE_LIBEXIF=$(HAVE_LIBEXIF)
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sxiv: $(OBJS)
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LDLIBS := -lImlib2 -lX11 -lXft
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ifneq ($(HAVE_GIFLIB),0)
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LDLIBS += -lgif
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endif
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ifneq ($(HAVE_LIBEXIF),0)
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LDLIBS += -lexif
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endif
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SRC := autoreload_$(AUTORELOAD).c commands.c image.c main.c options.c thumbs.c util.c window.c
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DEP := $(SRC:.c=.d)
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OBJ := $(SRC:.c=.o)
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$(OBJ): config.h Makefile
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%.o: %.c
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@echo "CC $@"
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$(CC) $(CFLAGS) $(CPPFLAGS) $(DEPFLAGS) -c -o $@ $<
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config.h: | config.def.h
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@echo "GEN $@"
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cp $| $@
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sxiv: $(OBJ)
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@echo "LINK $@"
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@echo "LINK $@"
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$(CC) $(LDFLAGS) -o $@ $^ $(LDLIBS)
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$(CC) $(LDFLAGS) -o $@ $(OBJS) $(LDLIBS)
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$(OBJS): config.h $(srcdir)/Makefile
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.c.o:
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@echo "CC $@"
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$(CC) $(ALL_CPPFLAGS) $(DEPFLAGS) $(CFLAGS) -c -o $@ $<
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%.o: $(srcdir)/%.c
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@echo "CC $@"
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$(CC) $(ALL_CPPFLAGS) $(DEPFLAGS) $(CFLAGS) -c -o $@ $(srcdir)/$(@:.o=.c)
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config.h:
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@echo "GEN $@"
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cp $(srcdir)/config.def.h $@
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clean:
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clean:
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rm -f $(OBJ) $(DEP) sxiv
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rm -f $(OBJS) $(DEPS) sxiv
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install: all
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install: all
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@echo "INSTALL bin/sxiv"
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@echo "INSTALL bin/sxiv"
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@ -45,7 +75,8 @@ install: all
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chmod 755 $(DESTDIR)$(PREFIX)/bin/sxiv
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chmod 755 $(DESTDIR)$(PREFIX)/bin/sxiv
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@echo "INSTALL sxiv.1"
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@echo "INSTALL sxiv.1"
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mkdir -p $(DESTDIR)$(MANPREFIX)/man1
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mkdir -p $(DESTDIR)$(MANPREFIX)/man1
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sed "s!PREFIX!$(PREFIX)!g; s!VERSION!$(VERSION)!g" sxiv.1 > $(DESTDIR)$(MANPREFIX)/man1/sxiv.1
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sed "s!PREFIX!$(PREFIX)!g; s!VERSION!$(VERSION)!g" sxiv.1 \
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>$(DESTDIR)$(MANPREFIX)/man1/sxiv.1
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chmod 644 $(DESTDIR)$(MANPREFIX)/man1/sxiv.1
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chmod 644 $(DESTDIR)$(MANPREFIX)/man1/sxiv.1
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@echo "INSTALL share/sxiv/"
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@echo "INSTALL share/sxiv/"
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mkdir -p $(DESTDIR)$(PREFIX)/share/sxiv/exec
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mkdir -p $(DESTDIR)$(PREFIX)/share/sxiv/exec
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@ -60,9 +91,5 @@ uninstall:
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@echo "REMOVE share/sxiv/"
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@echo "REMOVE share/sxiv/"
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rm -rf $(DESTDIR)$(PREFIX)/share/sxiv
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rm -rf $(DESTDIR)$(PREFIX)/share/sxiv
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.PHONY: all clean install uninstall
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.SUFFIXES:
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$(V).SILENT:
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-include $(DEP)
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-include $(DEP)
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18
config.mk
18
config.mk
@ -1,18 +0,0 @@
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PREFIX := /usr/local
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MANPREFIX := $(PREFIX)/share/man
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CC ?= gcc
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CFLAGS += -std=c99 -Wall -pedantic
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CPPFLAGS += -I/usr/include/freetype2 -D_XOPEN_SOURCE=700
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DEPFLAGS := -MMD -MP
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LDFLAGS +=
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# autoreload backend: inotify/nop
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AUTORELOAD := inotify
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# enable features requiring giflib (-lgif)
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HAVE_GIFLIB := 1
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# enable features requiring libexif (-lexif)
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HAVE_LIBEXIF := 1
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