nsxiv5155d52
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
+57 −48
2 files changed
| @@ -1,42 +1,72 @@ | |||
| 1 | − | # Requires GNU make 3.80 or later | |
| 1 | + | # Works best with GNU make 3.80 or later | |
| 2 | 2 | ||
| 3 | − | VERSION := git-20171006 | |
| 3 | + | VERSION = git-20171012 | |
| 4 | 4 | ||
| 5 | − | all: sxiv | |
| 5 | + | srcdir = . | |
| 6 | 6 | ||
| 7 | − | include config.mk | |
| 7 | + | PREFIX = /usr/local | |
| 8 | + | MANPREFIX = $(PREFIX)/share/man | |
| 8 | 9 | ||
| 9 | − | override CPPFLAGS += -I. -DVERSION=\"$(VERSION)\" -DHAVE_GIFLIB=$(HAVE_GIFLIB) -DHAVE_LIBEXIF=$(HAVE_LIBEXIF) | |
| 10 | + | CC ?= gcc | |
| 11 | + | CFLAGS += -std=c99 -Wall -pedantic | |
| 12 | + | CPPFLAGS += -I/usr/include/freetype2 -D_XOPEN_SOURCE=700 | |
| 13 | + | DEPFLAGS = -MMD -MP | |
| 14 | + | LDFLAGS += | |
| 10 | 15 | ||
| 11 | − | LDLIBS := -lImlib2 -lX11 -lXft | |
| 16 | + | # autoreload backend: inotify/nop | |
| 17 | + | AUTORELOAD = inotify | |
| 12 | 18 | ||
| 13 | − | ifneq ($(HAVE_GIFLIB),0) | |
| 14 | − | LDLIBS += -lgif | |
| 15 | − | endif | |
| 16 | − | ifneq ($(HAVE_LIBEXIF),0) | |
| 17 | − | LDLIBS += -lexif | |
| 18 | − | endif | |
| 19 | + | # enable features requiring giflib (-lgif) | |
| 20 | + | HAVE_GIFLIB = 1 | |
| 19 | 21 | ||
| 20 | − | SRC := autoreload_$(AUTORELOAD).c commands.c image.c main.c options.c thumbs.c util.c window.c | |
| 21 | − | DEP := $(SRC:.c=.d) | |
| 22 | − | OBJ := $(SRC:.c=.o) | |
| 22 | + | # enable features requiring libexif (-lexif) | |
| 23 | + | HAVE_LIBEXIF = 1 | |
| 23 | 24 | ||
| 24 | − | $(OBJ): config.h Makefile | |
| 25 | + | REQ_CPPFLAGS = -I. -DVERSION=\"$(VERSION)\" \ | |
| 26 | + | -DHAVE_GIFLIB=$(HAVE_GIFLIB) -DHAVE_LIBEXIF=$(HAVE_LIBEXIF) | |
| 27 | + | ALL_CPPFLAGS = $(REQ_CPPFLAGS) $(CPPFLAGS) | |
| 25 | 28 | ||
| 26 | − | %.o: %.c | |
| 27 | − | @echo "CC $@" | |
| 28 | − | $(CC) $(CFLAGS) $(CPPFLAGS) $(DEPFLAGS) -c -o $@ $< | |
| 29 | + | LIB_EXIF_0 = | |
| 30 | + | LIB_EXIF_1 = -lexif | |
| 31 | + | LIB_GIF_0 = | |
| 32 | + | LIB_GIF_1 = -lgif | |
| 33 | + | LDLIBS = -lImlib2 -lX11 -lXft \ | |
| 34 | + | $(LIB_EXIF_$(HAVE_LIBEXIF)) $(LIB_GIF_$(HAVE_GIFLIB)) | |
| 29 | 35 | ||
| 30 | − | config.h: | config.def.h | |
| 31 | − | @echo "GEN $@" | |
| 32 | − | cp $| $@ | |
| 36 | + | -include config.mk | |
| 37 | + | ||
| 38 | + | SRCS = autoreload_$(AUTORELOAD).c commands.c image.c main.c options.c \ | |
| 39 | + | thumbs.c util.c window.c | |
| 40 | + | OBJS = $(SRCS:.c=.o) | |
| 41 | + | DEPS = $(SRCS:.c=.d) | |
| 42 | + | ||
| 43 | + | all: sxiv | |
| 33 | 44 | ||
| 34 | − | sxiv: $(OBJ) | |
| 45 | + | .PHONY: all clean install uninstall | |
| 46 | + | .SUFFIXES: | |
| 47 | + | .SUFFIXES: .c .o | |
| 48 | + | $(V).SILENT: | |
| 49 | + | ||
| 50 | + | sxiv: $(OBJS) | |
| 35 | 51 | @echo "LINK $@" | |
| 36 | − | $(CC) $(LDFLAGS) -o $@ $^ $(LDLIBS) | |
| 52 | + | $(CC) $(LDFLAGS) -o $@ $(OBJS) $(LDLIBS) | |
| 53 | + | ||
| 54 | + | $(OBJS): config.h $(srcdir)/Makefile | |
| 55 | + | ||
| 56 | + | .c.o: | |
| 57 | + | @echo "CC $@" | |
| 58 | + | $(CC) $(ALL_CPPFLAGS) $(DEPFLAGS) $(CFLAGS) -c -o $@ $< | |
| 59 | + | ||
| 60 | + | %.o: $(srcdir)/%.c | |
| 61 | + | @echo "CC $@" | |
| 62 | + | $(CC) $(ALL_CPPFLAGS) $(DEPFLAGS) $(CFLAGS) -c -o $@ $(srcdir)/$(@:.o=.c) | |
| 63 | + | ||
| 64 | + | config.h: | |
| 65 | + | @echo "GEN $@" | |
| 66 | + | cp $(srcdir)/config.def.h $@ | |
| 37 | 67 | ||
| 38 | 68 | clean: | |
| 39 | − | rm -f $(OBJ) $(DEP) sxiv | |
| 69 | + | rm -f $(OBJS) $(DEPS) sxiv | |
| 40 | 70 | ||
| 41 | 71 | install: all | |
| 42 | 72 | @echo "INSTALL bin/sxiv" | |
| @@ -45,7 +75,8 @@ install: all | |||
| 45 | 75 | chmod 755 $(DESTDIR)$(PREFIX)/bin/sxiv | |
| 46 | 76 | @echo "INSTALL sxiv.1" | |
| 47 | 77 | mkdir -p $(DESTDIR)$(MANPREFIX)/man1 | |
| 48 | − | sed "s!PREFIX!$(PREFIX)!g; s!VERSION!$(VERSION)!g" sxiv.1 > $(DESTDIR)$(MANPREFIX)/man1/sxiv.1 | |
| 78 | + | sed "s!PREFIX!$(PREFIX)!g; s!VERSION!$(VERSION)!g" sxiv.1 \ | |
| 79 | + | >$(DESTDIR)$(MANPREFIX)/man1/sxiv.1 | |
| 49 | 80 | chmod 644 $(DESTDIR)$(MANPREFIX)/man1/sxiv.1 | |
| 50 | 81 | @echo "INSTALL share/sxiv/" | |
| 51 | 82 | mkdir -p $(DESTDIR)$(PREFIX)/share/sxiv/exec | |
| @@ -60,9 +91,5 @@ uninstall: | |||
| 60 | 91 | @echo "REMOVE share/sxiv/" | |
| 61 | 92 | rm -rf $(DESTDIR)$(PREFIX)/share/sxiv | |
| 62 | 93 | ||
| 63 | − | .PHONY: all clean install uninstall | |
| 64 | − | .SUFFIXES: | |
| 65 | − | $(V).SILENT: | |
| 66 | − | ||
| 67 | 94 | -include $(DEP) | |
| 68 | 95 | ||
| @@ -1,18 +0,0 @@ | |||
| 1 | − | PREFIX := /usr/local | |
| 2 | − | MANPREFIX := $(PREFIX)/share/man | |
| 3 | − | ||
| 4 | − | CC ?= gcc | |
| 5 | − | CFLAGS += -std=c99 -Wall -pedantic | |
| 6 | − | CPPFLAGS += -I/usr/include/freetype2 -D_XOPEN_SOURCE=700 | |
| 7 | − | DEPFLAGS := -MMD -MP | |
| 8 | − | LDFLAGS += | |
| 9 | − | ||
| 10 | − | # autoreload backend: inotify/nop | |
| 11 | − | AUTORELOAD := inotify | |
| 12 | − | ||
| 13 | − | # enable features requiring giflib (-lgif) | |
| 14 | − | HAVE_GIFLIB := 1 | |
| 15 | − | ||
| 16 | − | # enable features requiring libexif (-lexif) | |
| 17 | − | HAVE_LIBEXIF := 1 | |
| 18 | − | ||