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Explicitly list component-objects in the Makefile - slstatus - status monitor |
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git clone git://git.suckless.org/slstatus |
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--- |
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commit 0efd64ffaa04715eff9c834c437562952c4531cd |
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parent 682c0fedde04fe6713539726494ec2db67ba5d2a |
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Author: Laslo Hunhold <[email protected]> |
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Date: Sun, 27 May 2018 22:40:00 +0200 |
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Explicitly list component-objects in the Makefile |
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There was a long tinkering process at farbfeld about this, but the sad |
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truth is that it's the only way to make the Makefile truly portable. |
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Listing it just as |
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$(COM:=.o): config.mk $(REQ:=.h) |
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omits the dependency on the c-file itself, which incurs that strictly |
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speaking the object file is not depending on the source file, which is |
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nonsense. |
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You don't see strictly Posix compliant Makefiles around very often and |
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most use nasty GNU-extensions everywhere. It is a good idea to go ahead |
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as a fitting example and show how to write them portably. |
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Diffstat: |
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M Makefile | 31 +++++++++++++++++++++++++----… |
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1 file changed, 25 insertions(+), 6 deletions(-) |
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--- |
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diff --git a/Makefile b/Makefile |
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@@ -30,19 +30,38 @@ COM =\ |
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all: slstatus |
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-slstatus: slstatus.o $(COM:=.o) $(REQ:=.o) |
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+components/battery.o: components/battery.c config.mk $(REQ:=.h) |
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+components/cpu.o: components/cpu.c config.mk $(REQ:=.h) |
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+components/datetime.o: components/datetime.c config.mk $(REQ:=.h) |
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+components/disk.o: components/disk.c config.mk $(REQ:=.h) |
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+components/entropy.o: components/entropy.c config.mk $(REQ:=.h) |
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+components/hostname.o: components/hostname.c config.mk $(REQ:=.h) |
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+components/ip.o: components/ip.c config.mk $(REQ:=.h) |
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+components/kernel_release.o: components/kernel_release.c config.mk $(REQ:=.h) |
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+components/keyboard_indicators.o: components/keyboard_indicators.c config.mk $… |
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+components/keymap.o: components/keymap.c config.mk $(REQ:=.h) |
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+components/load_avg.o: components/load_avg.c config.mk $(REQ:=.h) |
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+components/netspeeds.o: components/netspeeds.c config.mk $(REQ:=.h) |
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+components/num_files.o: components/num_files.c config.mk $(REQ:=.h) |
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+components/ram.o: components/ram.c config.mk $(REQ:=.h) |
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+components/run_command.o: components/run_command.c config.mk $(REQ:=.h) |
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+components/swap.o: components/swap.c config.mk $(REQ:=.h) |
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+components/temperature.o: components/temperature.c config.mk $(REQ:=.h) |
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+components/uptime.o: components/uptime.c config.mk $(REQ:=.h) |
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+components/user.o: components/user.c config.mk $(REQ:=.h) |
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+components/volume.o: components/volume.c config.mk $(REQ:=.h) |
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+components/wifi.o: components/wifi.c config.mk $(REQ:=.h) |
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slstatus.o: slstatus.c slstatus.h arg.h config.h config.mk $(REQ:=.h) |
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-$(COM:=.o): config.mk $(REQ:=.h) |
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+ |
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+.c.o: |
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+ $(CC) -o $@ -c $(CPPFLAGS) $(CFLAGS) $< |
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config.h: |
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cp config.def.h $@ |
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-.o: |
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+slstatus: slstatus.o $(COM:=.o) $(REQ:=.o) |
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$(CC) -o $@ $(LDFLAGS) $< $(COM:=.o) $(REQ:=.o) $(LDLIBS) |
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-.c.o: |
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- $(CC) -o $@ -c $(CPPFLAGS) $(CFLAGS) $< |
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- |
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clean: |
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rm -f slstatus slstatus.o $(COM:=.o) $(REQ:=.o) |
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